File Entry: Industrial process for OXICONAZOLE Dr Krishnasarma Pathy
Created: 2012-07-24 11:38:44
Last updated: 2013-06-21 09:49:15
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| Title | PROCESS FOR THE PREPARATION OF 5-CYANOPHTHALIDE AND INTERMEDIATES USEFUL THEREI |
| File name | 27999854-5-Cyanophthalide-is-Disclosed-Which-Comprises-Reacting-a-Pharmaceutic-Ally-Acceptable-Salts-of-5-Carboxyphthalide-With-an-Alkyl-Carbomate.pdf |
| File size | 114817 |
| SHA1 | 36a3493e665a6f192b5348f3307bc7e8a0a12fb7 |
| Content type | Adobe PDF |
Description
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Process for the preparation of 5-cyanophthalide is disclosed which comprises reacting a pharmaceuticallyacceptable salts of 5-carboxyphthalide with an alkyl carbomate to obtain 5-carboxycarbomyl phthalide. Latterwas reacted with 30% HBr in acetic acid to obtain an amide. The latter is further reacted with a chloride so as toobtain substantially pure 5-Cyanophthalide.
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