Title of Invention	A PROCESS FOR SYNTHESIS OF PARA ISO PROPOXY METHYL BENZOATE
Abstract	The present invention relates to the synthesis of a new product para iso propoxy methyl benzoate, which comprises the process of etherification of methyl paraben in various solvents using iso propyl chloride or iso propyl bromide or iso propyl iodide as etherification agent in the presence of bases like sodium hydroxide or potassium hydroxide and isolating the inorganic halides by filtration and removal of unreacted methyl paraben after the recovery of the solvent by distillation.

Title of Invention

A PROCESS FOR SYNTHESIS OF PARA ISO PROPOXY METHYL BENZOATE

Abstract

The present invention relates to the synthesis of a new product para iso propoxy methyl benzoate, which comprises the process of etherification of methyl paraben in various solvents using iso propyl chloride or iso propyl bromide or iso propyl iodide as etherification agent in the presence of bases like sodium hydroxide or potassium hydroxide and isolating the inorganic halides by filtration and removal of unreacted methyl paraben after the recovery of the solvent by distillation.

Full Text	FORM - 2 THE PATENT ACT, 1970 (39 of 1970) PROVISIONAL SPECIFICATION [SECTION 10 ; RULE 1 3] PARA ISO PROPOXY METHYL BENZOATE AND A PROCESS TO MANUFACTURE THE SAME. GUJARAT ORGANICS LIMITED, AN INDIAN COMPANY INCORPORATED UNDER THE COMPANIES ACT, 1956 HAVING ITS OFFICE AT PLOT NO 127/1, G.I.D.C. ESTATE, ANKLESHWAR - 393 002, DIST BHARUCH, GUJARAT STATE, INDIA. THE FOLLOWING SPECIFICATIONS PARTICULARLY DESCRIBES THE NATURE OF THIS INVENTION :- The present invention relates to a new product, Viz Para Iso Propoxy Methyl Benzoate (PIPMB), its synthesis and its purification. The present invention discloses the synthesis, characterization of Para Iso Propoxy Methyl Benzoate. The present compound has the application as external electron donor in Poly Propylene manufacturing. The present invention discloses the synthesis of Para Iso Propoxy Methyl Benzoate by esterification of p-Hydroxy Benzoic Acid with Methanol in the presence of Sulphonic Acid followed by recovery of excess Methanol by distillation. The residual material is purified in water by neutralization using a base Viz Sodium Bicarbonate / Sodium Hydroxide / Potassium Hydroxide dilute solution in water. In the preferred embodiment, the process of esterification is carried out in the presence of an Aryl Sulphonic Acid e.g. Para Toluene sulphonic Acid. The process of esterification can also be carried out in the presence of an Alkyl Sulphonic Acid e.g. Methane Sulphonic Acid. Hydrochloric Acid can also be used as a catalyst in the process of esterification, polymer Sulphonic Acid e.g. Ion Exchange Resins like Indion 850/ Duolite 368 can also be used as a catalyst in the process of esterification. Dry Methyl Paraben obtained from the above process is etherified using halogenated isopropyl derivatives (CI, Br and I) in the presence of a base such as NaOH or KOH in a solvent Viz O.D.C.B., Methyl Iso Butyl Ketone and N, N - Dimethyl Formamide and Diethyl Formamide. F.W. = 194.15 According to this invention, Para Iso Propoxy Methyl Benzoate has the following structure Further according to this invention the process for manufacturing Para Iso Propoxy Methyl Benzoate comprises of the following steps (a) Etherification of Methyl Paraben in liquid Formamide reacting it with Iso Propyl Halide in the presence of Alkali Hydroxide. (b) Isolation of resulting inorganic Halide by filtration. (c) Recovery of solvent by distillation. (d) Removal of untreated Methyl Paraben. In the above step (a) firstly Methyl Paraben is dissolved in liquid Formamide; secondly alkali Hydroxide is slowly added to the above solution in the first sub step under stirring; thirdly Iso Propyl Halide is added to the above solution in the second sub step under stirring. The reaction temperature is maintained between 30°C - 80°C throughout. Further in the said step (a) liquid Formamide is N, N- Dimethyl Formamide or N, N - Diethyl Formamide or Methyl Iso Butyl Ketone or Ortho Di Chloro Benzene; etherification reagent is Iso Propyl Bromide or Iso Propyl Chloride or Iso Propyl Iodide; and moisture content of said distilled Para Iso Propoxy Methyl Benzoate is in the range of 140-190 ppm The unreacted Methyl Paraben is removed by washing the reaction mass with alkali hydroxide or alkali carbonate solution or alkali bicarbonate solution and the resultant product is purified by distillation. The following reaction illustrates the invention The present invention is illustrated with the following examples. The examples are only illustrative and in no way limit to the scope of invention. EXAMPLE - 1 Charge N, N - Dimethyl Formamide (1.88 Kg.), Methyl Paraben (2.0 Kg.) followed by the addition of Sodium Hydroxide (0.526 Kg.). Stir the contents for 6.0 hours. Then add Iso Propyl Bromide to convert Methyl Paraben to Para Iso Propoxy Methyl Benzoate. Maintain the reaction at 30°C - 80°C to complete the reaction. Monitor the progress of the reaction on TLC. After completion of the reaction filter the solid Sodium Bromide and collect the Mother Liquor containing N, N - Dimethyl Formamide and Para Iso Propoxy Methyl Benzoate. Distill out the N, N - Dimethyl Formamide under vacuum at 100°C/0.8 - 1.0 mm of Hg and recover N, N - Dimethyl Formamide (1.8 Kg.) Add water to the residue. Separate the upper organic layer; wash the organic layer with 5% NaOH solution (200 ml). Then wash the organic layer with water (200 ml). Distill the organic layer under vacuum at 110°C -120°C/ 0.1 -0.5 mm of Hg. Weight of Para Iso Propoxy Methyl Benzoate = 2.11 Kg. Yield = 82.7 %(Theory) C.C. Purity = 99.2% Para Iso Propoxy Benzoic Acid = 0.04 to 0.05% Moisture Content = 190 ppm EXAMPLE - 2 Charge N, N - Dimethyl Formamide (1.9 Kg.), Methyl Paraben (2.0 Kg.) followed by the slow addition of Potassium Hydroxide (0.736 Kg.). Stir the contents for 6.0 hours. Then add Iso Propyl Bromide to convert Methyl Paraben to Para Iso Propoxy Methyl Benzoate. Maintain the reaction at 30°C - 80°C to complete the reaction. Monitor the progress of the reaction on TLC. After completion of the reaction filter the solid Potassium Bromide and collect the Mother Liquor containing N, N -Dimethyl Formamide and Para Iso Propoxy Methyl Benzoate. Distill out the N, N - Dimethyl Formamide under vacuum at 100°C - 105°C/0.8 -1.0 mm of Hg and recover N, N - Dimethyl Formamide (1.75 Kg. approx.) Add water to the residue. Separate the upper organic layer. Then wash the organic layer with 5% KOH solution (200 ml). Then wash the organic layer with water (200 ml). Distill the organic layer under vacuum at 110°C - 120°C / 0.1 - 0.5 mm of Hg. Weight of Para Iso Propoxy Methyl Benzoate = 2.29 Kg. % Yield = 89.73% (Theory) G.C. Purity = 99.4% Para Iso Propoxy Benzoic Acid = 0.05% Moisture Content = 180 ppm EXAMPLE - 3 Charge N, N - Dimethyl Formamide (1.9 Kg.), Methyl Paraben (2.0 Kg.) followed by the slow addition of Sodium Hydroxide (0.526 Kg.). Stir the contents for 6.0 hours. Then add Iso Propyl Chloride to convert Methyl Paraben to Para Iso Propoxy Methyl Benzoate. Maintain the reaction at 30°C - 80°C to complete the reaction. Monitor the progress of the reaction on TLC. After completion of the reaction filter the solid Sodium Chloride and collect the Mother Liquor containing N, N -Dimethyl Formamide and Para Iso Propoxy Methyl Benzoate. Distill out the N, N - Dimethyl Formamide under vacuum at 100°C - 110°C/0.1 -1.0 mm of Hg and recover N, N - Dimethyl Formamide (1.8 Kg.) Add water to the residue. Separate the upper organic layer. Wash the organic layer with 5% NaOH solution (200 ml). Then wash the organic layer with water (200 ml). Distill the organic layer under vacuum at 11 0°C - 1 20°C / 0.1 - 0.5 mm of Hg. Weight of Para Iso Propoxy Methyl Benzoate = 2.34 Kg. % Yield = 91.69% (Theory) C.C. Purity = 99.3% Para Iso Propoxy Benzoic Acid = Nil Moisture Content = 175 ppm EXAMPLE - 4 Charge N, N - Dimethyl Formamide (1.9 Kg.), Methyl Paraben (2.0 Kg.) followed by the addition of Sodium Hydroxide (0.530 Kg.). Stir the contents for 4.0 hours. Then add Iso Propyl Iodide to convert Methyl Paraben to Para Iso Propoxy Methyl Benzoate. Maintain the reaction at 30°C - 80°C to complete the reaction. Monitor the progress of the reaction on TLC. After completion of the reaction filter the solid Sodium Iodide and collect the Mother Liquor containing N, N -Dimethyl Formamide and Para Iso Propoxy Methyl Benzoate. Distill out the N, N - Dimethyl Formamide under vacuum at 100°C - 110°C/0.1 -1.0 mm of Hg and recover N, N - Dimethyl Formamide (1.70 Kg. approx.). Add water to the residue. Separate the upper organic layer. Then wash the organic layer with 5% NaOH solution (200 ml). Then wash the organic layer with water (200 ml). Distill the organic layer under vacuum at 110°C - 120°C / 0.1 - 1.0 mm of Hg. Weight of Para Iso Propoxy Methyl Benzoate = 2.37 Kg. % Yield = 92.86% (Theory) C.C. Purity = 99.2% Para Iso Propoxy Benzoic Acid = 0.04% Moisture Content = 160 ppm EXAMPLE - 5 Charge Ortho Di Chloro Benzene (1.9 Kg.), Methyl Paraben (2.0 Kg.) followed by the slow addition of Potassium Hydroxide (0.736Kg.). Stir the contents for 4.0 hours. Then add Iso Propyl Bromide to convert Methyl Paraben to Para Iso Propoxy Methyl Benzoate. Maintain the reaction at 30°C - 80°C to complete the reaction. Monitor the progress of the reaction on TLC. After completion of the reaction filter the solid Potassium Bromide and collect the Mother Liquor containing Ortho Di Chloro Benzene and Para Iso Propoxy Methyl Benzoate. Distill out the Ortho Di Chloro Benzene under vacuum at 100°C - 105°C/0.5 - 1.0 mm of Hg and recover Ortho Di Chloro Benzene (1.70 Kg. approx.) Then add water (200 ml) to the residue. Separate the upper organic layer. Then wash the organic layer with 5% KOH solution (200 ml). Then wash the organic layer with water (200 ml). Distill the organic layer under vacuum at 110°C - 120°C / 0.1 - 1.0 mm of Hg. Weight of Para Iso Propoxy Methyl Benzoate = 2.37 Kg. % Yield = 92.86% (Theory) G.C. Purity = 99.20% Para Iso Propoxy Benzoic Acid = 0.04% Moisture Content = 1 50 ppm EXAMPLE - 6 Charge Methyl Iso Butyl Ketone (1.9 Kg.), Methyl Paraben (2.0 Kg.) followed by the slow addition of Sodium Hydroxide (0.530 Kg.). Stir the contents for 4.0 hours. Then add Iso Propyl Bromide to convert Methyl Paraben to Para Iso Propoxy Methyl Benzoate. Maintain the reaction at 30°C - 80°C to complete the reaction. Monitor the progress of the reaction on TLC. After completion of the reaction filter the solid Sodium Bromide and collect the mother Liquor containing Methyl Iso Butyl Ketone and Para Iso Propoxy Methyl Benzoate. Distill out the Methyl Iso Butyl Ketone under vacuum at 50°C - 55°C/0.5 - 1.0 mm of Hg and recover Methyl Iso Butyl Ketone (1.75 Kg. approx.) Add water to the residue separate the upper organic layer. Then wash the organic layer with 5% KOH or 5% NaOH or Soda Ash or Sodium Carbonate solution (200 ml). Then wash the organic layer with water (200 ml). Distill the organic layer under vacuum at 110°C - 120°C / 0.1 - 0.5 mm of Hg. Weight of Para Iso Propoxy Methyl Benzoate = 2.39 Kg. % Yield = 93.65% (Theory) G.C. Purity = 99.3% Para Iso Propoxy Benzoic Acid = 0.05% Moisture Content = 130 ppm ADVANTAGES 1. The present inventions synthesizes new external electron donor Para Iso Propoxy Methyl Benzoate with very low Para Iso Propoxy Benzoic Acid impurity (less than 0.1%) 2. The present invention synthesizes Para Iso Propoxy Methyl benzoate of 99.2% to 99.3% G.C. Purity. 3. The present invention is an economical method for the synthesis of new electron donor Para Iso Propoxy Methyl Benzoate.

Full Text

FORM - 2
THE PATENT ACT, 1970 (39 of 1970)
PROVISIONAL SPECIFICATION
[SECTION 10 ; RULE 1 3]
PARA ISO PROPOXY METHYL BENZOATE AND A PROCESS TO MANUFACTURE THE SAME.
GUJARAT ORGANICS LIMITED, AN INDIAN COMPANY INCORPORATED UNDER THE COMPANIES ACT, 1956 HAVING ITS OFFICE AT PLOT NO 127/1, G.I.D.C. ESTATE, ANKLESHWAR - 393 002, DIST BHARUCH, GUJARAT STATE, INDIA.
THE FOLLOWING SPECIFICATIONS PARTICULARLY DESCRIBES THE NATURE OF THIS INVENTION :-

The present invention relates to a new product, Viz Para Iso Propoxy Methyl Benzoate (PIPMB), its synthesis and its purification. The present invention discloses the synthesis, characterization of Para Iso Propoxy Methyl Benzoate. The present compound has the application as external electron donor in Poly Propylene manufacturing. The present invention discloses the synthesis of Para Iso Propoxy Methyl Benzoate by esterification of p-Hydroxy Benzoic Acid with Methanol in the presence of Sulphonic Acid followed by recovery of excess Methanol by distillation. The residual material is purified in water by neutralization using a base Viz Sodium Bicarbonate / Sodium Hydroxide / Potassium Hydroxide dilute solution in water.
In the preferred embodiment, the process of esterification is carried out in the presence of an Aryl Sulphonic Acid e.g. Para Toluene sulphonic Acid. The process of esterification can also be carried out in the presence of an Alkyl Sulphonic Acid e.g. Methane Sulphonic Acid. Hydrochloric Acid can also be used as a catalyst in the process of esterification, polymer Sulphonic Acid e.g. Ion Exchange Resins like Indion 850/ Duolite 368 can also be used as a catalyst in the process of esterification.
Dry Methyl Paraben obtained from the above process is etherified using halogenated isopropyl derivatives (CI, Br and I) in the presence of a base such as NaOH or KOH in a solvent Viz O.D.C.B., Methyl Iso Butyl Ketone and N, N - Dimethyl Formamide and Diethyl Formamide.
F.W. = 194.15
According to this invention, Para Iso Propoxy Methyl Benzoate has the following structure

Further according to this invention the process for manufacturing Para Iso Propoxy Methyl Benzoate comprises of the following steps
(a) Etherification of Methyl Paraben in liquid Formamide reacting it with Iso Propyl Halide in the presence of Alkali Hydroxide.
(b) Isolation of resulting inorganic Halide by filtration.
(c) Recovery of solvent by distillation.
(d) Removal of untreated Methyl Paraben.
In the above step (a) firstly Methyl Paraben is dissolved in liquid Formamide; secondly alkali Hydroxide is slowly added to the above solution in the first sub step under stirring; thirdly Iso Propyl Halide is added to the above solution in the second sub step under stirring. The reaction temperature is maintained between 30°C - 80°C throughout.
Further in the said step (a) liquid Formamide is N, N- Dimethyl Formamide or N, N - Diethyl Formamide or Methyl Iso Butyl Ketone or Ortho Di Chloro Benzene; etherification reagent is Iso Propyl Bromide or Iso Propyl Chloride or Iso Propyl Iodide; and moisture content of said distilled Para Iso Propoxy Methyl Benzoate is in the range of 140-190 ppm
The unreacted Methyl Paraben is removed by washing the reaction mass with alkali hydroxide or alkali carbonate solution or alkali bicarbonate solution and the resultant product is purified by distillation.
The following reaction illustrates the invention

The present invention is illustrated with the following examples. The examples are only illustrative and in no way limit to the scope of invention.
EXAMPLE - 1
Charge N, N - Dimethyl Formamide (1.88 Kg.), Methyl Paraben (2.0 Kg.) followed by the addition of Sodium Hydroxide (0.526 Kg.). Stir the contents for 6.0 hours. Then add Iso Propyl Bromide to convert Methyl Paraben to Para Iso Propoxy Methyl Benzoate. Maintain the reaction at 30°C - 80°C to complete the reaction. Monitor the progress of the reaction on TLC. After completion of the reaction filter the solid Sodium Bromide and collect the Mother Liquor containing N, N -

Dimethyl Formamide and Para Iso Propoxy Methyl Benzoate. Distill out the N, N - Dimethyl Formamide under vacuum at 100°C/0.8 - 1.0 mm of Hg and recover N, N - Dimethyl Formamide (1.8 Kg.) Add water to the residue. Separate the upper organic layer; wash the organic layer with 5% NaOH solution (200 ml). Then wash the organic layer with water (200 ml). Distill the organic layer under vacuum at 110°C -120°C/ 0.1 -0.5 mm of Hg.
Weight of Para Iso Propoxy Methyl Benzoate = 2.11 Kg.
Yield = 82.7 %(Theory)
C.C. Purity = 99.2%
Para Iso Propoxy Benzoic Acid = 0.04 to 0.05%
Moisture Content = 190 ppm
EXAMPLE - 2
Charge N, N - Dimethyl Formamide (1.9 Kg.), Methyl Paraben (2.0 Kg.) followed by the slow addition of Potassium Hydroxide (0.736 Kg.). Stir the contents for 6.0 hours. Then add Iso Propyl Bromide to convert Methyl Paraben to Para Iso Propoxy Methyl Benzoate. Maintain the reaction at 30°C - 80°C to complete the reaction. Monitor the progress of the reaction on TLC. After completion of the reaction filter the solid Potassium Bromide and collect the Mother Liquor containing N, N -Dimethyl Formamide and Para Iso Propoxy Methyl Benzoate. Distill out the N, N - Dimethyl Formamide under vacuum at 100°C - 105°C/0.8 -1.0 mm of Hg and recover N, N - Dimethyl Formamide (1.75 Kg. approx.) Add water to the residue. Separate the upper organic layer. Then wash the organic layer with 5% KOH solution (200 ml). Then wash the organic layer with water (200 ml). Distill the organic layer under vacuum at 110°C - 120°C / 0.1 - 0.5 mm of Hg.
Weight of Para Iso Propoxy Methyl Benzoate = 2.29 Kg.
% Yield = 89.73% (Theory)
G.C. Purity = 99.4%
Para Iso Propoxy Benzoic Acid = 0.05%
Moisture Content = 180 ppm
EXAMPLE - 3

Charge N, N - Dimethyl Formamide (1.9 Kg.), Methyl Paraben (2.0 Kg.) followed by the slow addition of Sodium Hydroxide (0.526 Kg.). Stir the contents for 6.0 hours. Then add Iso Propyl Chloride to convert Methyl Paraben to Para Iso Propoxy Methyl Benzoate. Maintain the reaction at 30°C - 80°C to complete the reaction. Monitor the progress of the reaction on TLC. After completion of the reaction filter the solid Sodium Chloride and collect the Mother Liquor containing N, N -Dimethyl Formamide and Para Iso Propoxy Methyl Benzoate. Distill out the N, N - Dimethyl Formamide under vacuum at 100°C - 110°C/0.1 -1.0 mm of Hg and recover N, N - Dimethyl Formamide (1.8 Kg.) Add water to the residue. Separate the upper organic layer. Wash the organic layer with 5% NaOH solution (200 ml). Then wash the organic layer with water (200 ml). Distill the organic layer under vacuum at 11 0°C - 1 20°C / 0.1 - 0.5 mm of Hg.
Weight of Para Iso Propoxy Methyl Benzoate = 2.34 Kg.
% Yield = 91.69% (Theory)
C.C. Purity = 99.3%
Para Iso Propoxy Benzoic Acid = Nil
Moisture Content = 175 ppm
EXAMPLE - 4
Charge N, N - Dimethyl Formamide (1.9 Kg.), Methyl Paraben (2.0 Kg.) followed by the addition of Sodium Hydroxide (0.530 Kg.). Stir the contents for 4.0 hours. Then add Iso Propyl Iodide to convert Methyl Paraben to Para Iso Propoxy Methyl Benzoate. Maintain the reaction at 30°C - 80°C to complete the reaction. Monitor the progress of the reaction on TLC. After completion of the reaction filter the solid Sodium Iodide and collect the Mother Liquor containing N, N -Dimethyl Formamide and Para Iso Propoxy Methyl Benzoate. Distill out the N, N - Dimethyl Formamide under vacuum at 100°C - 110°C/0.1 -1.0 mm of Hg and recover N, N - Dimethyl Formamide (1.70 Kg. approx.). Add water to the residue. Separate the upper organic layer. Then wash the organic layer with 5% NaOH solution (200 ml). Then wash the organic layer with water (200 ml). Distill the organic layer under vacuum at 110°C - 120°C / 0.1 - 1.0 mm of Hg.

Weight of Para Iso Propoxy Methyl Benzoate = 2.37 Kg.
% Yield = 92.86% (Theory)
C.C. Purity = 99.2%
Para Iso Propoxy Benzoic Acid = 0.04%
Moisture Content = 160 ppm
EXAMPLE - 5
Charge Ortho Di Chloro Benzene (1.9 Kg.), Methyl Paraben (2.0 Kg.) followed by the slow addition of Potassium Hydroxide (0.736Kg.). Stir the contents for 4.0 hours. Then add Iso Propyl Bromide to convert Methyl Paraben to Para Iso Propoxy Methyl Benzoate. Maintain the reaction at 30°C - 80°C to complete the reaction. Monitor the progress of the reaction on TLC. After completion of the reaction filter the solid Potassium Bromide and collect the Mother Liquor containing Ortho Di Chloro Benzene and Para Iso Propoxy Methyl Benzoate. Distill out the Ortho Di Chloro Benzene under vacuum at 100°C - 105°C/0.5 - 1.0 mm of Hg and recover Ortho Di Chloro Benzene (1.70 Kg. approx.) Then add water (200 ml) to the residue. Separate the upper organic layer. Then wash the organic layer with 5% KOH solution (200 ml). Then wash the organic layer with water (200 ml). Distill the organic layer under vacuum at 110°C - 120°C / 0.1 - 1.0 mm of Hg.
Weight of Para Iso Propoxy Methyl Benzoate = 2.37 Kg.
% Yield = 92.86% (Theory)
G.C. Purity = 99.20%
Para Iso Propoxy Benzoic Acid = 0.04%
Moisture Content = 1 50 ppm
EXAMPLE - 6
Charge Methyl Iso Butyl Ketone (1.9 Kg.), Methyl Paraben (2.0 Kg.) followed by the slow addition of Sodium Hydroxide (0.530 Kg.). Stir the contents for 4.0 hours. Then add Iso Propyl Bromide to convert Methyl Paraben to Para Iso Propoxy Methyl Benzoate. Maintain the reaction at 30°C - 80°C to complete the reaction. Monitor the progress of the reaction on TLC. After completion of the reaction filter the solid Sodium Bromide and collect the mother Liquor containing Methyl Iso Butyl Ketone and Para Iso Propoxy Methyl Benzoate. Distill out the Methyl Iso Butyl Ketone under vacuum at 50°C - 55°C/0.5 - 1.0 mm of

Hg and recover Methyl Iso Butyl Ketone (1.75 Kg. approx.) Add water to the residue separate the upper organic layer. Then wash the organic layer with 5% KOH or 5% NaOH or Soda Ash or Sodium Carbonate solution (200 ml). Then wash the organic layer with water (200 ml). Distill the organic layer under vacuum at 110°C - 120°C / 0.1 - 0.5 mm of Hg.
Weight of Para Iso Propoxy Methyl Benzoate = 2.39 Kg.
% Yield = 93.65% (Theory)
G.C. Purity = 99.3%
Para Iso Propoxy Benzoic Acid = 0.05%
Moisture Content = 130 ppm
ADVANTAGES
1. The present inventions synthesizes new external electron donor Para Iso Propoxy Methyl Benzoate with very low Para Iso Propoxy Benzoic Acid impurity (less than 0.1%)
2. The present invention synthesizes Para Iso Propoxy Methyl benzoate of 99.2% to 99.3% G.C. Purity.
3. The present invention is an economical method for the synthesis of new electron donor Para Iso Propoxy Methyl Benzoate.

Documents:

2102-MUM-2007-ABSTRACT(10-12-2012).pdf

2102-mum-2007-abstract(13-10-2008).pdf

2102-MUM-2007-ANNEXURE-1(10-12-2012).pdf

2102-mum-2007-claims(13-10-2008).pdf

2102-MUM-2007-CLAIMS(AMENDED)-(10-12-2012).pdf

2102-MUM-2007-CORRESPONDENCE(11-12-2012).pdf

2102-mum-2007-correspondence(13-10-2008).pdf

2102-MUM-2007-CORRESPONDENCE(8-6-2009).pdf

2102-mum-2007-correspondence-received.pdf

2102-mum-2007-description (provisional).pdf

2102-mum-2007-description(complete)-(13-10-2008).pdf

2102-MUM-2007-FORM 13(11-12-2012).pdf

2102-MUM-2007-FORM 18(8-6-2009).pdf

2102-mum-2007-form 2(13-10-2008).pdf

2102-MUM-2007-FORM 2(TITLE PAGE)-(10-12-2012).pdf

2102-mum-2007-form 2(title page)-(13-10-2008).pdf

2102-mum-2007-form 2(title page)-(provisional)-(24-10-2007).pdf

2102-mum-2007-form 5(13-10-2008).pdf

2102-mum-2007-form-1.pdf

2102-mum-2007-form-2.doc

2102-mum-2007-form-2.pdf

2102-mum-2007-form-26.pdf

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2102-MUM-2007-MARKED COPY(10-12-2012).pdf

2102-MUM-2007-MARKED COPY(11-12-2012).pdf

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2102-MUM-2007-SPECIFICATION(AMENDED)-(10-12-2012).pdf

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Patent Number

255248

Indian Patent Application Number

2102/MUM/2007

PG Journal Number

06/2013

Publication Date

08-Feb-2013

Grant Date

07-Feb-2013

Date of Filing

24-Oct-2007

Name of Patentee

GUJARAT ORGANICS LTD

Applicant Address

PLOT NO. 127/1, GIDC ESTATE, ANKLESHWAR 393002, DIST BHARUCH

Inventors:

#	Inventor's Name	Inventor's Address
1	ARVIND SHAH	PLOT NO. 127/1, GIDC ESTATE, ANKLESHWAR 393002, DIST BHARUCH
2	PATHAK RAJESH KUMAR	PLOT NO. 127/1, GIDC ESTATE, ANKLESHWAR 393002, DIST BHARUCH

PCT International Classification Number

C07C67/00

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1			NA