Metal-catalyzed amination of organic sulfonates to organic amines
申请人:Yale University
公开号:US05817877A1
公开(公告)日:1998-10-06
A process of preparing an organic amine having at least one unsaturated group, such as an arylamine, involving contacting an unsaturated organic sulfonate, such as an aryl sulfonate, with a reactant amine, such as an alkyl or aryl amine, in the presence of a base and a transition metal catalyst under reaction conditions. The transition metal catalyst contains a Group 8 metal and a chelating ligand, for example a Group 15-substituted arylene or Group 15-substituted metallocene, such as 1,1'-bis(diphenylphosphino)-2,2'-binaphthyl or 1,1'-bis(diphenylphosphino)-ferrocene, respectively. The aryl sulfonate can be prepared from a phenol and sulfonating agent.
Kato, Nippon Nogeikagaku Kaishi, 1953, vol. 27, p. 655
作者:Kato
DOI:——
日期:——
Palladium-Catalyzed Amination of Aryl Triflates and Importance of Triflate Addition Rate
作者:Janis Louie、Michael S. Driver、Blake C. Hamann、John F. Hartwig
DOI:10.1021/jo961930x
日期:1997.3.1
We report that a combination of DPPF (1,1-bis(diphenylphosphino)ferrocene) and Pd(dba)(2) leads to the amination of aryl triflates, a reaction that allows for the conversion of phenols to arylamines. A combination of BINAP and Pd(dba)(2) also catalyzes the amination of aryl triflates, but P(o-tolyl)(3) complexes were not effective catalysts. In some cases, slow addition of the aryl triflate was necessary to prevent cleavage of the triflate and generation of phenol. We found that added halide, necessary in some cross-coupling chemistry of aryl sulfonates, was an unnecessary additive and even inhibited the amination chemistry.
ALPHA- AND GAMMA-TRUXILLIC ACID DERIVATIVES AND PHARMACEUTICAL COMPOSITIONS THEREOF
申请人:Ojima Iwao
公开号:US20150183715A1
公开(公告)日:2015-07-02
The present invention provides a compound, and method of inhibiting the activity of a Fatty Acid Binding Protein (FABP) comprising contacting the FABP with a compound, having the structure: