Photocyclization of heteroaromatic carboxylic acid N-aroylenamine derivatives. Synthesis of heterocyclic spirocyclohexyl piperidines
The intermediate iminium ion formed during the photocyclization of N-aroylenamines can be trapped by alcohols or water, leading to functionalized heterocyclic spiranic compounds.
Gramain,Troin,Vallee-Goyet
p. 7301 - 7308
(2007/10/02)
A New Photochemical Spiroannelation Method. Access to Substituted Spirocyclohexanepiperidines
A variety of substituted spirocyclohexanepiperidines are obtained by the photocyclisation of enamides in which the double bond α to the nitrogen atom is exocyclic to the cyclohexane ring.
Gramain, Jean-Claude,Troin, Yves,Vallee, Danielle
p. 832 - 833
(2007/10/02)
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