162292-93-5Relevant articles and documents
Enynones in organic synthesis. 7. Substituent effects on the α-tocopherol-catalyzed cyclization of enynones to methylenecyclopentenones. Convenient syntheses of members of the methylenomycin class of antibiotics
Jacobi,Brielmann,Cann
, p. 5305 - 5316 (2007/10/02)
Substituent effects on the α-tocopherol (vitamin E, 3b) catalyzed cyclization of a wide variety of enynones 1a-z to methylenecyclopentenones 7a-z have been examined, with particular emphasis given to electron-withdrawing and -donating groups at positions