Claims
- 1. An isomeric mixture of thienofuroxans represented by the formula. ##STR3## wherein R is lower alkyl of 1-4 carbons.
- 2. The isomeric mixture of claim 1 wherein R is methyl.
- 3. A process for preparing an isomeric mixture of thienofuroxans represented by the formula ##STR4## wherein R is lower alkyl of 1-4 carbon atoms, which process comprises
- contacting a compound chosen from those represented by the formula ##STR5## with a catalytic amount of tertiary alkyl amine catalyst and phosphorous oxychloride in a suitable solvent under substantially anhydrous conditions.
- 4. The process of claim 3 wherein said tertiary alkyl amine is triethyl amine and the reaction is carried out in a solvent of chloroform at about 10.degree. to 40.degree. C.
Parent Case Info
This is a division of application Ser. No. 591,597 filed June 30, 1975 now U.S. Pat. No. 4,044,020.
Non-Patent Literature Citations (1)
Entry |
boulton, et al.-J. Org. Chem., vol. 39, No. 20, pp. 2956-2960, (1974). |
Divisions (1)
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Number |
Date |
Country |
Parent |
591597 |
Jun 1975 |
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