Microwave assisted free radical cyclisation of alkenyl and alkynyl isocyanides with thiols
作者:Massimiliano Lamberto、David F. Corbett、Jeremy D. Kilburn
DOI:10.1016/s0040-4039(02)02888-5
日期:2003.2
Alkenyl and alkynyl isocyanides were synthesised and then reacted, using microwave flash-heating technology, with thiophenol, 2-mercaptoethanol and ethanethiol, in the presence of a radical initiator, to give highly functionalised pyrrolines and pyroglutamates. Direct comparison with results obtained using traditional heating techniques showed the advantage of using the microwave technology in terms of faster reactions and better yields. (C) 2003 Published by Elsevier Science Ltd.
Synthesis of indolizidines from dialkylated isocyanides: a novel radical cyclisation/N-alkylation/ring closing metathesis approach
作者:Massimiliano Lamberto、Jeremy D. Kilburn
DOI:10.1016/j.tetlet.2008.08.088
日期:2008.10
Two dialkylated isocyanides were first synthesised from simple starting materials and then used as building blocks for the synthesis of indolizidines via a novelradicalcyclisation/N-alkylation/ring closing metathesis strategy. Several functionalised indolizidines were accessed in good to excellent yields.