Unsymmetrical Pincer <i>N</i>-Heterocyclic Carbene–Nitrogen–Phosphine Chelated Palladium(II) Complexes: Synthesis, Structure, and Reactivity in Direct Csp<sup>2</sup>–H Arylation of Benzoxazoles
作者:Yaqiu Li、Xiaojun Yu、Yangdiandian Wang、Haiyan Fu、Xueli Zheng、Hua Chen、Ruixiang Li
DOI:10.1021/acs.organomet.8b00005
日期:2018.3.26
unsymmetrical pincer N-heterocyclic carbene–nitrogen–phosphine (CNP) and its palladiumcomplexes PdCl2(κ2-CP) (4) and [PdCl(κ3-CNP)]PF6 (5·PF6) were synthesized. NMR spectra disclosed that the transformation of complex 4 structure occurred in the solution. Further NMR experimental and single crystal structure analysis of complex 4 provided unequivocal and structural evidence for the formation of complex [PdCl(κ3-CNP)]Cl
Phenylacetic acid compounds in treating abnormal platelet aggregation
申请人:Merck & Co., Inc.
公开号:US03947582A1
公开(公告)日:1976-03-30
Pharmaceutical Compositions based on 4-(Benzoxazol-2-yl)phenylacetic acids, alcohols, esters, amides and their non-toxic pharmaceutically acceptable salts and method of treating abnormal platelet aggregation.
o‐hydroxyl‐controlled hydrogen‐transfer strategy for the one‐pot synthesis of benzoxazoles from readily available amino acids and 2‐nitrophenols is reported. On the basis of this autoredox reaction, the C−N bond can be efficiently constructed to afford the desired products in moderate to good yields under transition‐metal‐free conditions in aqueousmedia.