Preparation and photochemistry of some chlorine-substituted derivatives of deoxybenzoin and bibenzyl
Abstract
A series of aryl p-chlorobenzyl ketones has been prepared and converted into the corresponding 1-aryl-2-p-chlorophenylethane derivatives (1). U.v. irradiation of two of the latter compounds (1a, b) in benzene results in replacement of the chlorine atom by a phenyl group, whereas other related compounds (1c, e, f) are stable. Irradiation of two isomeric chlorodeoxybenzoins (2a, b) gives the corresponding 1,2,3,4-tetra-arylbutane-1,4-diones (3).