SOME RING CLOSURE REACTIONS WITH CYANOTHIOFORMAMIDES: NEW ROUTE FOR THE SYNTHESIS OF (IMIDAZOLIDINE, OXAZOLIDINE & PYRROLINE)- …

AMS El-Sharief, AA Atalla, AM Hussein…

Index: El-Sharief; Atalla; Hussein; El-Gaby; Hassan Phosphorus, Sulfur and Silicon and Related Elements, 2000 , vol. 160, p. 141 - 158

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Citation Number: 5

Abstract

Abstract Cyanothioformarnides were reacted with isocyanates, isothiocyanates, aldehydes, acetylenedicarboxylic acid and anthranilic acids to produce imidazolidines, oxazolidines pyrroline, quinazolinones and benzothiazoloquinazolinones, respectively. Interaction of imidazolidineimino (thiones and dithiones) with o-phenylenediamines gave rise to imidazoquinoxalines and imidazoquinoxalinethiones, respectively.

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