Tetrahedron Letters p. 943 - 946 (2004)
Update date:2022-08-04
Topics:
Anderson, Rosaleen J.
Batsanov, Andrei S.
Belskaia, Natalia
Groundwater, Paul W.
Meth-Cohn, Otto
Zaytsev, Andrey
A new, one-step procedure for the generation of azomethine ylides, 4 and 20, via chloroiminium salts, 3 and 19, is reported. The generation of the azomethine ylides was confirmed by their trapping with dimethyl acetylenedicarboxylate (DMAD) which, upon spontaneous 1,4-dehydrochlorination, gave the corresponding pyrroles 17 and 21.
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