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:Donald Craig、N. Paul King、Jörg T. Kley、David M. Mountford
DOI:10.1055/s-2005-918448
日期:——
pyrrol-2-ylmethyl tosylacetates undergo facile decarboxylative Claisenrearrangement upon exposure to N,O-bis(trimethylsilyl)acetamide-potassium acetate to yield the corresponding 2,3-disubstituted heteroaromatic products in good yield. However, for 1-(thien-2-yl)ethyl tosylacetates and substrates derived from 3-(hydroxyalkyl)indoles rearomatisation does not occur.