3-[(Substituted-amino)(aryl or heteroaryl)methyl]-1H-indoles which are useful as color-formers in pressure-sensitive carbonless duplicating systems and thermal marking systems are prepared by reacting 3-[(arylsulfonyl)(aryl or heteroaryl)methyl]-1H-indoles with amines or precursors thereof in the presence of a base.
3-[(芳基磺酰基)(芳基或杂环芳基)
甲基]-1H-
吲哚在存在碱的情况下与胺或其前体反应制备,这些化合物在压敏无
碳复写系统和热标记系统中作为
显色剂非常有用。