The photochemical enolization of an aliphatic α,β-unsaturated ketone
Abstract
Irradiation of 4-methylpent-3-en-2-one (1) in the presence of chlorotrimthylsilane yields the dienol silyl ether (Z)-4-methyl-2-trimethylsiloxypenta-2,4-diene (2b); the trapping of a single dienol is shown to be consistent with a singlet excited state mechanism.