Perkin communications. X-Ray structural study of a 1 : 1 complex of 4-methoxy-1-methylpyridone and (R,R)-(–)-1,6-bis(o-chlorophenyl)-1,6-diphenylhexa-2,4-diyne-1,6-diol the irradiation of which gives optically pure β-lactam

Abstract

A 1 : 1 complex of 4-methoxy-1-methylpyridone and (R,R)-(–)-1,6-bis(o-chlorophenyl)-1,6-diphenylhexa-2,4-diyne-1,6-diol, on irradiation, gives a pure β-lactam. The mechanism for this photoconversion has been studied by means of an X-ray crystallographic analysis of the complex.