Phenacyl ester photosensitizers for radiation-curable coatings
申请人:American Cyanamid Company
公开号:US04054719A1
公开(公告)日:1977-10-18
An ultraviolet radiation-curable composition is provided which comprises a polyethylenically unsaturated compound and effective photosensitizing amounts of (a) a phenacyl ester, and (b) a tertiary aliphatic amine.
Hydrogen peroxide and anhydride mediated transformation of enamides to afford substituted α-acyloxy ketones is described. This transition-metal-free cascade reaction has a broad substrate scope and high efficiency. The acyl intramolecular migration procedure successfully achieved this acyloxylation process under mild conditions and increased the atom efficiency.