1,2,3- and 1,2,4-triazolium salts, pyrazoles, and quinoxalines from diarylnitrilimines and isocyanides: A study of the scope
作者:Dietrich Moderhack、Ali Daoud
DOI:10.1002/jhet.5570400411
日期:2003.7
4-triazolium salts 11 are formed. Compounds 11 with tert-butyl group at the ring are unstable too, giving rise to triazoles 13. Pyrazoleformation (analogues of 14) is completely suppressed when both tert-butyl and aryl isocyanides are used, whereas access to this ring system works best with see-alkyl isocyanides (the influence of substituents of 2 being almost negligible in this case). Formation of quinoxalines