

IMIDAZOL-5-ONE-BASED DONOR–ACCEPTOR CYCLOPROPANES IN REACTION WITH C=S DIPOLAROPHILES

Abstract
Interaction of imidazol-5-one-based donor–acceptor cyclopropanes with thiourea and thioacetamide was studied. Previously undescribed spirocyclic 2-amino- and 2-iminotetrahydrothiophenes are formed in the reaction.
Keywords
donor–acceptor cyclopropanes; imidazolones; thioacetamide; thiophenes; thiourea
Latvian Institute of Organic Synthesis - Aizkraukles iela, 21, Riga, LV-1006, Latvia - hgs@osi.lv