
Synthesis p. 221 - 224 (1997)
Update date:2022-08-04
Topics:
Silveira, Claudio C.
Begnini, Mauro L.
Boeck, Paula
Braga, Antonio L.
The preparation of several vinyl sulfides, selenides and tellurides by Wittig-type reaction in a one-pot procedure is described. The chalcogenyl triphenylphosphoranes 3 are formed 'in situ' by the reaction of chloromethyl phenyl chalcogenide, potassium tert-butoxide and triphenylphosphine. Reaction of 3 with carbonyl compounds affords the vinyl chalcogenides 6-9 with preferential Z-configuration.
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