There is provided an oxidation process using potassium permanganate as oxidizing agent, for the preparation of certain animal growth promoters, namely, N-(4,5,6,7-tetrahydro-7-oxobenzo[b]thien-4-yl)amides, 4,5,6,7-tetrahydro-7-oxobenzo[b]-thien-4-ylureas, N-(1,2,3,4-tetrahydro-4-oxo-1-naphthyl)amides and 1,2,3,4-tetrahydro-4-oxo-1-naphthylureas, said process affording such compounds in markedly improved yields, and being readily suitable for scale-up.
提供了一种使用
高锰酸钾作为氧化剂的氧化过程,用于制备某些动物生长
促进剂,即N-(4,5,6,7-四氢-7-氧代苯并[b]
噻吩-4-基)酰胺,4,5,6,7-四氢-7-氧代苯并[b]
噻吩-4-基
脲,N-(1,2,3,4-四氢-4-氧代-1-
萘基)酰胺和1,2,3,4-四氢-4-氧代-1-
萘基
脲,该过程大大提高了这些化合物的产量,并且易于扩大规模。