First synthesis of tert-butyl-substituted 1,2,4triazino5,6-bindole-3-thiols and indolo2,3-bquinoxalines

摘要

In this investigation, the first introduction of a tert-butyl group into 1,2,4triazino5,6-bindole and indolo2,3-bquinoxaline systems, leading to a series of structurally novel 8-(t-butyl)-5H-1,2,4triazino5,6-bindole-3-thiol and 9-(t-butyl)-6H-indolo2,3-bquinoxaline derivatives, has been achieved by condensation of tert-butyl-substituted isatins with benzene-1,2-diamine or thiosemicarbazide. The molecular structures of these newly synthesized compounds were elucidated on the basis of elemental analysis and spectral data.