Presentation of a method for producing a 5-methylindoline represented by the formula: ##STR1## (wherein R is a hydrogen atom or a lower alkyl group), which comprises catalytically hydrogenating a 1-(substituted)benzyl-5-formylindoline represented by the formula: ##STR2## (wherein R.sup.1 is a hydrogen atom or a lower alkyl group, and R.sup.2 is a hydrogen atom, a lower alkyl group or a lower alkoxy group) in the presence of an inert solvent and a palladium catalyst.
提供了一种生产
5-甲基吲哚的方法,其表示为:##STR1##(其中R是氢原子或较低的烷基基团),该方法包括在惰性溶剂和
钯催化剂存在下,催化氢化一个表示为:##STR2##的1-(取代)苄基-5-
甲醛吲哚(其中R.sup.1是氢原子或较低的烷基基团,R.sup.2是氢原子、较低的烷基基团或较低的烷氧基团)。