CONTRASTING REACTIVITY IN LEWIS ACID-PROMOTED REACTIONS OF THIO-ALLENES AND SILYL-ALLENES WITH 1,4-BENZOQUINONES

Citation
Ta. Engler et al., CONTRASTING REACTIVITY IN LEWIS ACID-PROMOTED REACTIONS OF THIO-ALLENES AND SILYL-ALLENES WITH 1,4-BENZOQUINONES, Tetrahedron letters, 37(3), 1996, pp. 327-330
Citations number
24
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
ISSN journal
00404039
Volume
37
Issue
3
Year of publication
1996
Pages
327 - 330
Database
ISI
SICI code
0040-4039(1996)37:3<327:CRILAR>2.0.ZU;2-9
Abstract
In Ti(IV)-promoted reactions with 2-methoxy-1,4-benzoquinones 3, thioa llenes I give 2+2 and/or 3+2 products via attack on a C=C moiety of th e quinone, whereas silylallene 2 gives products derived from attack on a carbonyl group of the quinone.