131497-52-4Relevant articles and documents
α-ACYL-SULFINES BY REACTION OF ACETYLENES WITH N-SULFINYL-AMIDES
Himbert, Gerhard,Pfeifer, Klaus-Peter,Finkele, Christoph E.
, p. 125 - 128 (2007/10/02)
Ynamines, ynethers and phenylacetylene react with N-sulfinyl-carboxamides to give 1,4,3-oxathiazines, which tend to devide by a retro Diels-Alder reaction into nitriles and 2-sulfinyl-amides, 2-sulfinyl-esters and sulfinylacetophenone, resp.
The retro-Diels-Alder-reactivity of 1,4,3,-oxathiazin-4-oxides
Pfeifer,Himbert
, p. 5725 - 5728 (2007/10/02)
1,4,3-oxathiazin-4-oxides 3 and 8, formed by (4+2) cycloaddition of ynamines 1a-d or phenylacetylene 7 with N-sulfinyl-p-toluamide 2, furnish p-tolunitrile 5 and the acyl-sulfines 4 and 9 by a retro-Diels-Alder reaction.