2-氨基苯甲腈置于n-溴代丁二酰亚胺(Nbs)体系中,用 乙腈 用作溶剂,以97%的收率获得2-氨基-5-溴苯甲腈 参考文献:Synthesis Of Arylbromides From Arenes And N-Bromosuccinimide (Nbs) In Acetonitrile-A Convenient Method For Aromatic Bromination 标题:Synthesis Of Arylbromides From Arenes And N-Bromosuccinimide (Nbs) In Acetonitrile-A Convenient Method For Aromatic Bromination 摘要:利用乙腈中的 N-溴代丁二酰亚胺(nbs),可以很容易地对一系列活化的炔类化合物进行区域选择性和化学选择性亲电溴化反应.与其他亲电溴化条件相比,该方法的环境友好,底物范围大且易于合成,从而提高了其实用性. Doi:10.1139/v08-176
专利号:US-9205087-B1 优先权日:2014-02-19 标题:6-Piperazinyl-3,4-dihydroquinazolin-2(1H)-ones 发明人:ULLAH NISAR 权利人:UNIV KING FAHD PET & MINERALS; KING ABDULAZIZ CITY SCI & TECH 摘要:A series of new 6-piperazinyl-3,4-dihydroquinazolin-2(1H)-ones have been synthesized. The compounds are structurally related to adoprazine, a potential atypical antipsychotics bearing potent D 2 receptor antagonist and 5-HT 1A receptor agonist properties. Buchwald-Hartwig coupling of suitably modified aryl bromides with tert-butyl piperazine-1-carboxylate afforded the advanced intermediate piperazinyl-3,4-dihydroquinazolin-2(1H)-one. The reductive amination of the latter with appropriately designed biarylaldehydes accomplished the synthesis of these compounds.
专利号:RU-2197482-C2 优先权日:1997-04-22 标 题 :Substituted phenyl derivatives, method of their synthesis, pharmaceutical composition comprising thereof and method of treatment (variants)