申请人:Chevron Research Company
公开号:US04340757A1
公开(公告)日:1982-07-20
A process for the preparation of 2,6-dialkylaniline which comprises the reaction of 1,3-dialkyl-5-tertiary-butylbenzene with molecular bromine to form 2-bromo-1,3-dialkyl-5-tertiary-butylbenzene, which is subsequently reacted with 1,3-dialkylbenzene in the presence of hydrogen fluoride to form a mixture of 2-bromo-1,3-dialkylbenzene and 1,3-dialkyl-5-tertiary-butylbenzene, which is then reacted with ammonia in the presence of a catalytic amount of cuprous halide.
制备2,6-二烷基苯胺的过程,包括1,3-二烷基-5-叔丁基苯与分子溴反应形成2-溴-1,3-二烷基-5-叔丁基苯,随后在氢氟酸存在下与1,3-二烷基苯反应形成2-溴-1,3-二烷基苯和1,3-二烷基-5-叔丁基苯的混合物,然后将该混合物在催化量的卤化亚铜存在下与氨反应。