Iminyls. Part 3. Formation of triaryl-pyridines and -pyrimidines from aryl-β-arylvinyliminyls
Abstract
Aryl-β-arylvinyliminyls, produced by oxidation of the corresponding imino-oxyacetic acids with persulphate or by thermolysis of the t-butyl peresters of these acids, abstract hydrogen giving imines which dimerise and/or are hydrolysed to ketones. The bicyclic dimers so formed readily undergo oxidative fragmentation to triaryl-pyridines and/or -pyrimidines.