Uebergangsmetallkomplexe von Diazenen.XXXIV. 2,6-Di(trans-stilbenyl)azobenzole und 2,3-Dihydrocinnoline durch cobaltkatalysierte, zweifache Addition von Tolan an Azobenzolderivate

Article abstract of DOI:10.1016/0022-328X(94)05259-E

Addition of CoH(N2)(PPh3)3 or CoH3(PPh3)3 to a melt of diphenylacetylene and an azobenzene derivative at 85 deg C in dependence on the substitution pattern affords 2,6-di(trans-stilbenyl)azobenzenes and 2,3-dihydrocinnolines.The reaction is catalytic and