1-(.gamma.-Aminopropyl)-2,5-dihydroxybenzene and derivatives thereof having additional substituents on the benzene nucleus, .beta.-(2,5-di-lower alkoxyphenyl)acrylonitriles and derivatives thereof having additional substituents on the benzene nucleus, and .gamma.-aminopropyl-2,5-di-lower alkoxybenzenes and derivatives thereof having additional substituents on the benzene nucleus and a process for producing 1-(.gamma.-aminopropyl)-2,5-dihydroxybenzene or derivatives thereof having additional substituents on the benzene nucleus which comprises reacting a 2,5-di-lower alkoxybenzaldehyde or a derivative thereof having additional substituents on the benzene nucleus in the 3-, 4- and/or 6-positions (wherein the substituents can be one or more of an alkyl group of 5 or less carbon atoms or a halogen atom) with cyanoacetic acid or an ester thereof to form a .beta.-(2,5-di-lower alkoxyphenyl)acrylonitrile or a derivative thereof having additional substituents on the benzene nucleus, catalytically reducing the product, with or without previously isolating the product, to form a .gamma.-aminopropyl-2,5-di-lower alkoxybenzene or a derivative thereof having additional substituents on the benzene nucleus, and then dealkylating the product obtained in the reduction, with or without previously isolating the product.
1-(γ-
氨基丙基)-2,5-二羟基苯及其衍
生物,在苯环上具有额外取代基的衍
生物,β-(2,5-二低烷氧基苯基)
丙烯腈及其在苯环上具有额外取代基的衍
生物,以及γ-
氨基丙基-2,5-二低烷氧基苯及其在苯环上具有额外取代基的衍
生物的生产方法,包括将2,5-二低烷氧基
苯甲醛或其在3、4和/或6-位(其中取代基可以是一个或多个碳原子数不超过5的烷基基团或卤素原子)上具有额外取代基的衍
生物与
氰乙酸或其酯反应,形成β-(2,5-二低烷氧基苯基)
丙烯腈或其在苯环上具有额外取代基的衍
生物,催化还原产物,随后脱去还原产物中的烷氧基,再次催化还原产物。