Hydrogen-bond quenching of photodecarbonylation in the solid state and recovery of reactivity by co-crystallization

Abstract

Intermolecular H-bonding between C=O (ketone) and HO (4'-hydroxyphenyl) quenches photodecarbonylation of 2,2,4,4-tetramethyl-1,3-di(4'-hydroxyphenyl)acetone 1 in the crystalline solid state, its reactivity is recovered by co-crystallization with the small organic molecule 4,4'-bicyclohexanone.