Photosubstitution of 1,2,4,5-tetracyanobenzene by ethers
Abstract
Irradiation of a mixture of 1,2,4,5-tetracyanobenzene and diethyl ether, tetrahydrofuran, or tetrahydropyran gave the corresponding substitution product, 1-ethoxy-1-(2,4.5-tricyanophenyl)ethane, tetrahydro-2-(2,4,5-tricyanophenyl)furan, or tetrahydro-2-(2,4,5-tricyanophenyl)pyran. Three possible mechanisms involving electron transfer are discussed.