(Rc)-di-μ-chloro-bis[1-(1'-dimethylaminoethyl)-2-naphthyl-C,N]dipalladium(ii) 、 Diphenyl-(E)-1-propenylphosphine 以
not given 为溶剂,
生成 [PdCl((R(C))-1-[1-(dimethylamino)ethyl]naphthyl-C(2),N)((E)-diphenyl-1-propenylphosphine)]
参考文献:
名称:
通过手性Palladacycle促进和控制的动力学拆分过程不对称合成新的二膦和吡啶膦。
摘要:
手性帕拉达环已成功地用于在温和条件下以高区域选择性和立体选择性促进外消旋仲膦乙基苯基膦与(E)/(Z)-二苯基-1-丙烯基膦或2-乙烯基吡啶之间的不对称氢磷酸化反应。(E)-二苯基-1-丙烯基膦用乙基苯基膦进行氢磷酸化,得到不对称的二膦螯合物,该螯合物含有一种具有R绝对构型的立构磷供体和一个相邻的手性S-碳中心作为主要产物,收率为60%。使用相同的手性金属模板,相应的氢磷酸化反应与(Z)-二苯基-1-丙烯基膦以手性R-碳中心产生非对映体二膦,收率为40%,但R-磷构型的受控形成不受碳链中不同立体化学的影响。一对可分离的非对映体钯模板,其中含有萘胺助剂和(R p / S p通过2-乙烯基吡啶与乙基苯基膦的加氢磷酸化,也以1.5∶1的比例产生)-[1-乙基苯基膦基-2-(2-吡啶)]乙烷。光学纯的二膦配体和P,N配体可以从模板复合物中立体定向释放。通过X射线晶体学测定模板配合物和二氯配合物的配位化学和绝对立体化学。
[EN] HETEROCYCLIC COMPOUNDS AND THEIR USE IN PREVENTING OR TREATING BACTERIAL INFECTIONS<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES ET LEUR UTILISATION DANS LA PRÉVENTION OU LE TRAITEMENT D'INFECTIONS BACTÉRIENNES
申请人:MUTABILIS
公开号:WO2018060481A1
公开(公告)日:2018-04-05
The invention relates to a compound of formula (I) and a racemate, an enantiomer, a diastereoisomer, a geometric isomer or a pharmaceutically acceptable salt thereof, and its use as antibacterial agent.
SYNTHESIS OF FLUORO HEMIACETALS VIA TRANSITION METAL-CATALYZED FLUORO ESTER AND CARBOXAMIDE HYDROGENATION
申请人:Triad National Security, LLC
公开号:US20200308089A1
公开(公告)日:2020-10-01
This application is directed to use of transition metal-ligand complexes to hydrogenate fluorinated esters and carboxamides into fluorinated hemiacetals. Methods for synthesis of certain ligands are also provided.
这项应用涉及使用过渡金属配体络合物将氟化酯和羧酰胺加氢成氟代半缩醛。还提供了合成某些配体的方法。
Solvent- and catalyst-free regioselective hydrophosphanation of alkenes
The hydrophosphanation of alkenes, an atom-economy process typically promoted by radicals or metal species, has been shown to take place in the absence of a catalyst, under solvent-free conditions and in a regioselective manner.
Steric effects on the control of endo/exo-selectivity in the asymmetric cycloaddition reaction of 3,4-dimethyl-1-phenylarsole
作者:Mengtao Ma、Ruifeng Lu、Sumod A. Pullarkat、Weiqiao Deng、Pak-Hing Leung
DOI:10.1039/b924613d
日期:——
The asymmetric cycloaddition reactions of 3,4-dimethyl-1-phenylarsole and (Z/E)-diphenyl-1-propenylphosphine/diphenyl-1-styrylphosphine promoted by a chiral organopalladium(II) complex derived from (S)-[1-(dimethylamino)ethyl]naphthalene proceeded stereoselectively to generate different exo/endo-products. The reactions involving the (Z/E)-methyl substituted phosphines gave the individual optically
HETEROCYCLIC COMPOUNDS AND THEIR USE IN PREVENTING OR TREATING BACTERIAL INFECTIONS
申请人:Mutabilis
公开号:EP3091018A1
公开(公告)日:2016-11-09
The present invention relates to heterocyclic compounds, their process of preparation, pharmaceutical compositions comprising these compounds and use thereof, optionally in combination with other antibacterial agents and/or beta-lactam compounds, for the prevention or treatment of bacterial infections. The present invention also relates to the use of these compounds as β-lactamase inhibitors and/or as antibacterial agents.