Abstract
The Norrish type I cleavage overwhelms the type II cleavage in the photolysis of α-alkylcycloalkanones bearing an SiMe 3 , SiMe 2 Ph, SiMePh 2 , or SiPh 3 group at the β position, of which the quantum yields are often greater than those of the non-silylated cycloalkanones.