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A facile entry into a stable functionalized bis(methylene)cyclobutene system

✍ Scribed by S Braverman; E.V.K Suresh Kumar; M Cherkinsky; M Sprecher; I Goldberg

Book ID: 104210733
Publisher: Elsevier Science
Year: 2000
Tongue: French
Weight: 170 KB
Volume: 41
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)01148-5

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✦ Synopsis

A parameter for the stabilization of the 3,4-bis(methylene)cyclobutene system has been identi®ed. Appropriate functionalized derivatives, stable even in solution, have been conveniently prepared by tandem double [2,3]-sigmatropic rearrangement of conjugated dipropargylic sulfenates to diallenic disulfoxides and spontaneous cyclization of the latter. Stereochemical aspects are presented.

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