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Self-condensation reaction of alkylbenzothiazoles with grignard reagents

✍ Scribed by F. Babudri; F. Ciminale; S. Florio

Publisher
Elsevier Science
Year
1984
Tongue
French
Weight
208 KB
Volume
25
Category
Article
ISSN
0040-4039

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✦ Synopsis

2-alkylbenzothiazoles undergo Claisen-type self-condensation reaction simply on treatment with Grignard reagents. In theprecedingpaper we have described a novel ring opening reaction of benzothiazoles with allylic Grignard reagents.' The reaction was specific of allylic Grignards, as we found that benzothiazole did not react with n-BuMgBr and treatment with PhMgBr afforded an intractable mixture of many products. In order to understand the different behaviour of alkyl and aryl Grignard reagents with respect to the allylic derivatives, we started a more detailedinvestigation of the reaction of some benzothiazoles and alkyl and aryl Grignard reagents.

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