ChemInform Abstract: Selective Dimerization by a Radical Chain Reaction in γ‐ Irradiated Crystals of 1,3‐Bis(3‐acetoxyprop‐1‐ynyl)‐4‐methoxy‐6‐ methylbenzene.

Abstract

Selective Dimerization by a Radical Chain Reaction in γ-Irradiated Crystals of 1,3-Bis(3-acetoxyprop-1-ynyl)-4-methoxy-6-methylbenzene. -γ-Irradiation of (I) under vacuum forms the single dimer (II). Such an exclusive formation of a dimeric product by the γ-irradiation is observed neither for benzene solutions of (I) nor for crystals of other disubstituted bis(3-acetoxyprop-1-ynyl)benzenes. The crystal structure of (I) is responsible for the selective dimerization by the chain reaction. A mechanism for the chain reaction is proposed on the basis of the crystal structure. -(YAMAMOTO, Y.; UEDA, T.; KANESHISA, N.; MIYAKAWA, K.; TAKAI, Y.; TAGAWA, S.; SAWADA, M.; KAI, Y.; J. Chem. Soc.