Peroxy esters. 7. Base-catalyzed reaction of 5-(acylmethyl)-2,5-di-tert-butyl-4-oxa-2-cyclopentenones derived selectively from acid catalysis of 2,6-di-tert-butyl-p-peroxyquinol acetates
Reaction of peroxy-p-quinol acetates with trifluoroacetic anhydride. Formation of new oxepinone derivatives.
作者:A. Nishinaga、K. Nakamura、T. Matsuura
DOI:10.1016/s0040-4039(00)71389-x
日期:——
The reaction of peroxy--quinol acetates derived from 4-R-2,6-di--butylphenols (R = Me, Et, n-Pr, s-Bu) with trifluoroaceticanhydride gives the corresponding 2-tri-fluoroacetylmethylidene-5-oxepinone derivatives. A favoured mechanism involves efficient conversion of a quinoxy cation intermediate primarily formed into an oxepinone derivative to which a trifluoroacetyl group is incorporated.