| Title of Invention | A PROCESS FOR THE PRODUCTION OF HERBICIDE ETHOFUMESATE. |
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| Abstract | A process for preparation of ethofumesate wherein 2,3-dihydro-3-dimethyl-5 hydroxy-2-morpholine benzofuran is reacted with methane sulfonyl chloride in benzene as solvent medium in the presence of triethylamine. wherein methane sulfonyl chloride is added in four equal parts; and wherein triethylmine hydrochloride formed in neutralized by adding caustic soda solution (47%) in three equal parts to regenerate triethylamine insitu: and wherein the mass is allowed to settle to separate organic layer; and wherein the organic layer is washed with water and dilute alkali to get neutral pH; and wherein the organic layer is further reacted with ethyl alcohol in the presence of hydrochloric acid (25%); and wherein benzene is distilled under reduced pressure to get crude ethofumisate; and wherein crude ethofumesate is recrystalised in ethyl alcohol, filtered and dried under reduced pressure. |
| Full Text | A process for preparation of ethofumesate wherein 2,3-dihydro-3-dimethyl-5 hydroxy-2-morpholine benzofuran is reacted with methane sulfonyl chloride in benzene as solvent medium in the presence of triethylamine. wherein methane sulfonyl chloride is added in four equal parts; and wherein triethylmine hydrochloride formed in neutralized by adding caustic soda solution (47%) in three equal parts to regenerate triethylamine insitu: and wherein the mass is allowed to settle to separate organic layer; and wherein the organic layer is washed with water and dilute alkali to get neutral pH; and wherein the organic layer is further reacted with ethyl alcohol in the presence of hydrochloric acid (25%); and wherein benzene is distilled under reduced pressure to get crude ethofumisate; and wherein crude ethofumesate is recrystalised in ethyl alcohol, filtered and dried under reduced pressure. |
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87-mum-2005-abstract(28-1-2005).doc
87-mum-2005-abstract(granted)-(30-10-2006).doc
87-mum-2005-cancelled pages(28-12-2005).pdf
87-mum-2005-claims(28-1-2005).doc
87-mum-2005-claims(28-1-2005).pdf
87-mum-2005-claims(amended)-(28-12-2005).pdf
87-mum-2005-claims(granted)-(30-10-2006).doc
87-mum-2005-claims(granted)-(30-10-2006).pdf
87-mum-2005-correspondence(28-12-2005).pdf
87-mum-2005-correspondence(ipo)-(30-10-2006).pdf
87-mum-2005-description(complete)-(28-1-2005).pdf
87-mum-2005-description(granted)-(30-10-2006).pdf
87-mum-2005-form 1(28-1-2005).pdf
87-mum-2005-form 18(9-3-2005).pdf
87-mum-2005-form 2(28-1-2005).doc
87-mum-2005-form 2(28-1-2005).pdf
87-mum-2005-form 2(granted)-(30-10-2006).doc
87-mum-2005-form 2(granted)-(30-10-2006).pdf
87-mum-2005-form 2(title page)-(28-1-2005).pdf
87-mum-2005-form 2(title page)-(granted)-(30-10-2006).pdf
87-mum-2005-form 3(28-1-2005).pdf
87-mum-2005-form 9(9-3-2005).pdf
87-mum-2005-marked copy(28-12-2005).pdf
87-mum-2005-specification(amended)-(28-12-2005).pdf
| Patent Number | 203103 | |||||||||
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| Indian Patent Application Number | 87/MUM/2005 | |||||||||
| PG Journal Number | 37/2007 | |||||||||
| Publication Date | 14-Sep-2007 | |||||||||
| Grant Date | 30-Oct-2006 | |||||||||
| Date of Filing | 28-Jan-2005 | |||||||||
| Name of Patentee | MR. SHALIL S SHROFF | |||||||||
| Applicant Address | PLOT NO.645/646, OBEROI CHEMBERS II, 4TH & 5TH FLOOR, NEW LINK ROAD, ANDHERI (WEST), MUMBAI 400 053. | |||||||||
Inventors:
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| PCT International Classification Number | A01N43/12, C07D307/82 | |||||||||
| PCT International Application Number | N/A | |||||||||
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