[4+2] Cycloaddition of 1-Thia-3-azadienes with Nitriles: An Efficient, One-Pot Synthesis of 3,4-Dihydro-1,3,5-2H-thiadiazine Derivatives from Trimethylsilyl Imines
- 1 January 1991
- journal article
- letter
- Published by Georg Thieme Verlag KG in Synlett
- Vol. 1991 (02) , 93-94
- https://doi.org/10.1055/s-1991-20638
Abstract
4-(Phenyl/2-thienyl)-2-[N-(4-chlorophenyl/phenyl)-N-trimethylsilylamino]-1-thia-3-azabutadienes, formed on reaction of N-trimethylsilyl imines 1 with isothiocyanates, react with electron-deficient nitriles to give substituted 2-imino-3,4-dihydro-1,3,5-2H-thiadiazine derivatives 3 in excellent yield.Keywords
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