Tetrahedron letters

Intramolecular cyclization of (allylthio) sulfines via their vinylsulfenic acid tautomers.

G Mazzanti, R Ruinaard, LA Van Vliet, P Zani…

文献索引：Mazzanti, Germana; Ruinaard, Rene; Vliet, Leonard A. van; Zani, Paolo; Bonini, Bianca F.; Zwanenburg, Binne Tetrahedron Letters, 1992 , vol. 33, # 42 p. 6383 - 6386

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被引用次数: 12

摘要

Abstract Intramolecular cyclization of enethiolizable (allylthio) sulfines afford 2-alkylidene-1, 3-dithiolane-1-oxides in good yields. The formation of these compounds can be explained by an initial tautomerization of the sulfine to vinyl sulfenic acid, followed by an intramolecular addition of the sulfenic acid to the allylic double bond. The stractures of the products were elucidated by means of 1 H-and 13 C-NMR spectroscopy as well as LIS effects, ...