Dimerization of N-(pyrid-2-YL)- and N-(5-methylpyrid-2-YL) cyanoacetamides by the action of butylthiodibutylborane
摘要:
The reaction of N-(pyrid-2-yl) and N-(5-methylpyrid-2-yl) cyanoacetamides with butylthiodibutylborane in a 2:3 ratio leads to the formation of trinuclear complex boron compounds, the alcoholysis of which gave N,N'-di(pyrid-2-yl) 3-amino-2-cyanopent-2-ene-1,5-diamides. The latter are dimers of the starting cyanamides, which are capable of acting as hexadentate chelating agents.