Selenosulfonation of acetylenes: preparation of novel .beta.-(phenylseleno)vinyl sulfones and their conversion to acetylenic and .beta.-functionalized sulfones
Selenosulfonation of acetylenes: preparation of novel .beta.-(phenylseleno)vinyl sulfones and their conversion to acetylenic and .beta.-functionalized sulfones
A copper-catalyzedhighlyregio- and stereospecific selenosulfonation of alkynes with arylsulfonohydrazides and diphenyl diselenide has been developed. This novel three component reaction proceeds under very mild conditions and with a broad scope of substrates, providing a wide range of (E)-β-selenovinyl sulfones in good to excellent yields.
Selenosulfonation of acetylenes. Substitution reactions of β-(phenylseleno)vinyl sulfones with organocuprates
作者:Thomas G. Back、Scott Collins、Kwok-Wai Law
DOI:10.1016/s0040-4039(01)81145-x
日期:1984.1
β-(Phenylseleno)vinylsulfones are readily available from the selenosulfonation of acetylenes and undergo efficient, stereoselective substitution of the phenylseleno moiety by the alkyl group of alkyl (phenylseleno) cuprates.
Substitution reactions of organocuprates with .beta.-(phenylseleno)vinyl sulfones derived from the selenosulfonation of acetylenes. A convenient and stereospecific preparation of vinyl sulfones and olefins from acetylenes
作者:Thomas G. Back、Scott Collins、M. Vijaya Krishna、Kwok Wai Law
DOI:10.1021/jo00228a019
日期:1987.9
BACK, T. G.;COLLINS, S.;KERR, R. G., J. ORG. CHEM., 1983, 48, N 18, 3077-3084