申请人:——
公开号:US20040030135A1
公开(公告)日:2004-02-12
A process for the preparation of thiophenols of formula (I) wherein n is an integer from 1 to 5 and R is hydrogen, alkyl, hydroxyalkyl, alkylamino, dialkylamino, alkenyl, alkynyl, alkoxy, alkylthio, phenyl, naphthyl, phenoxy, phenylthio, halogen, hydroxy, mercapto, carboxyl, sulfo or heterocyclyl, by reacting phenyldiazonium salts of formula (II) wherein n and R are as defined and X is halogen or hydrogen sulfate, with sulfur at elevated temperature in the presence of an aqueous base and isolating the compounds of formula (I).
一种制备式(I)中n为1到5的整数,R为氢,烷基,羟基烷基,烷基氨基,二烷基氨基,烯基,炔基,烷氧基,烷硫基,苯基,萘基,苯氧基,苯硫基,卤素,羟基,巯基,羧基,磺酰基或杂环基的噻吩酚的方法,通过在水基存在下,在升温条件下将式(II)中n和R如定义所述,X为卤素或氢硫酸盐的苯基重氮盐与硫反应,并分离式(I)化合物的过程。