A Convenient Synthesis of Primary Amines Using Sodium Diformylamide as A Modified Gabriel Reagent
作者:Han Yinglin、Hu Hongwen
DOI:10.1055/s-1990-26805
日期:——
Sodium diformylamide (1) was used as a convenient substitute for phthalimide in the Gabriel synthesis of primary amines. Reagent 1 undergoes smooth N-alkylation with alkyl halides or p-toluenesulfonates 2 in acetonitrile or dimethylformamide to give the corresponding N,N-diformylalkylamines 3 in good yields, except with alkylating agents which are susceptible to base-catalyzed elimination. The formyl group of 3 can be easily removed by hydrochloric acid to give the corresponding alkylamine hydrochlorides 5 or free alkylamines 4.
A convenient preparation of aminomethyl aryl ketones and their derivatives
作者:Han Ying-lin、Hu Hong-wen
DOI:10.1016/s0040-4039(01)93765-7
日期:1989.1
A convenient preparation of N-phenacyl diformamides, N-phenacyl formamides and aminomethyl aryl ketone hydrochlorides from aryl bromomethyl ketones and sodium diformylamide was described.
SUBSTITUTED ARYLOXOETHYL CYCLOPROPANECARBOXAMIDE COMPOUNDS AS VR1 RECEPTOR ANTAGONISTS
申请人:Hanazawa Takeshi
公开号:US20110152326A1
公开(公告)日:2011-06-23
This invention provides a compound of the formula (I): (I) These compounds are useful for the treatment of disease conditions caused by overactivation of the VR1 receptor, such as pain, or the like in mammalian. This invention also provides a pharmaceutical composition comprising the above compound.