Photocyclisation de N-aroylenamines derivees d'acides carboxyliques heteroaromatiques. Syntheses de spirocyclohexyl piperidines accolees a un heterocycle.
摘要:
The intermediate iminium ion formed during the photocyclization of N-aroylenamines can be trapped by alcohols or water, leading to functionalized heterocyclic spiranic compounds.
A new photochemical spiroannelation method. Access to substituted spirocyclohexanepiperidines
作者:Jean-Claude Gramain、Yves Troin、Danielle Vallee
DOI:10.1039/c39810000832
日期:——
A variety of substitutedspirocyclohexanepiperidines are obtained by the photocyclisation of enamides in which the double bond α to the nitrogen atom is exocyclic to the cyclohexane ring.