申请人:Merck & Co., Inc.
公开号:US03978127A1
公开(公告)日:1976-08-31
New fluoro derivatives of aralkylamine compounds, particularly 2-(2-phenyl-1,1,2,2-tetrafluoroethyl)benzylamine, as well as the N-alkyl and the N,N-dialkyl derivatives thereof are prepared by reaction of 2-bromobenzonitrile with benzylmagnesium chloride to produce 2'-bromo-2-phenylacetophenone; oxidation of said acetophenone with selenous acid to produce 2-bromobenzil; conversion of the benzil compound by treatment with sulfur tetrafluoride to the corresponding 2-bromo-.alpha. ,.alpha.-.alpha.',.alpha.'-tetrafluorobibenzyl; followed by reaction of the 2-bromobibenzyl compound with a metal cyanide to produce the corresponding 2-(2-phenyl-1,1,2,2-tetrafluoroethyl)benzonitrile. This nitrile compound is then reduced with lithium aluminum hydride to produce the corresponding benzylamine, which is then converted, if desired, to the N-alkyl and/or N,N-dialkyl 2-(2-phenyl-1,1,2,2-tetrafluoroethyl)benzylamine. Alternatively, the nitrile or the precursor bromobibenzyl can be converted by Grignard reactions to the corresponding .alpha.-alkyl or .alpha.,.alpha.-dialkylbenzylamine which can then be converted if desired to the corresponding N-alkyl and/or N,N-dialkyl substituted benzylamine compound. The phenyltetrafluoroethylbenzylamine as well as its N-alkyl and N,N-dialkyl derivatives are active as antiarrhythmic agents.
新的
氟代取代的芳基胺化合物,特别是2-(2-
苯基-1,1,
2,2-四
氟乙基)
苄胺,以及其N-烷基和
N,N-二烷基衍
生物,通过2-
溴苯甲腈与
苄基氯化镁反应制备2'-
溴-2-
苯基乙苯酮;将该乙
苯酮氧化为
硒酸,生成2-
溴苯甲醛;通过
硫四
氟化物处理
苯甲醛化合物,转化为相应的2-
溴-α,α,α',α'-四
氟联苯;然后将
2-溴联苯化合物与
金属
氰化物反应,产生相应的2-(2-
苯基-1,1,
2,2-四
氟乙基)
苯甲腈。然后,将这种腈化合物还原为相应的
苄胺,然后转化为必要时的N-烷基和/或
N,N-二烷基2-(2-
苯基-1,1,
2,2-四
氟乙基)
苄胺。或者,腈或前体
溴联苯可以通过
格氏试剂反应转化为相应的α-烷基或α,α-二烷基
苄胺,然后如果需要,可以转化为相应的N-烷基和/或
N,N-二烷基取代的
苄胺化合物。
苯基四
氟乙基
苄胺以及其N-烷基和
N,N-二烷基衍
生物作为
抗心律失常药物具有活性。