Steuerung der katalytischen Pyridinsynthese aus Alkinen und Nitrilen durch (η6-Borinato)-Liganden am Cobalt

Article abstract of DOI:10.1002/hlca.19840670630

η⁶-Borinato groups as ligands at cobalt have unique effects on the chemo- and regioselectivity of the catalytic co-cyclization of alkynes and nitriles.The turnover number of the conversion of acrylonitrile and acetylene to give 2-vinylpyridine is considerably enhanced.Cyano compounds with polar substituents such as amino or thio groups can also be reacted.The homogenous reaction of HCN with acetylene giving pyridine has been achieved for the first time.