Reaction of stabilised arsonium ylides with acetylenic esters: convenient ring synthesis of a tetrasubstituted benzene

…, I Gosney, RO Gould, D Lloyd, RA Ormiston

文献索引：Aitken, R. Alan; Blake, Alexander J.; Gosney, Ian; Gould, Robert O.; Lloyd, Douglas; Ormiston, Raymond A. Journal of the Chemical Society - Perkin Transactions 1, 1998 , # 11 p. 1801 - 1805

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摘要

Reaction of stabilised arsonium ylides such as 24 with methyl and ethyl propiolate in benzene gives the β, γ-unsaturated arsonium ylides 25 and 27 resulting from net insertion of the alkyne fragment into the CAs bond, but the isomeric ylides 26 and 28 corresponding to ...