金( I )三芳基膦化合物是一类众所周知的配位化合物,具有从温和到强的发射特性。本文讨论了绿色发射中性线性单膦或中性假T形或阳离子双膦金(I)化合物的制备、光谱表征、X射线衍射结构测定和光物理研究的机械化学方法。机械化学方法制备金(I)衍生物对于带有羧基的配体特别成功,而用酯化配体制备则通过溶剂介导的方法产生更好的结果。在一个芳基中引入羧基或酯取代基有利于配体中心发射。基于 DFT 计算阐明了发射起源的分析,解决了以配体为中心的激发态的发射行为,受超分子可逆氢键聚集的强烈影响。研究表明,带有羧基的配体特别适合用于材料科学应用的发射性金( I )配合物的机械化学制备。
Palladium-Catalyzed C–P(III) Bond Formation by Coupling ArBr/ArOTf with Acylphosphines
作者:Xingyu Chen、Hongyu Wu、Rongrong Yu、Hong Zhu、Zhiqian Wang
DOI:10.1021/acs.joc.1c00937
日期:2021.7.2
differential phosphination reagents is reported. The acylphosphines show practicable reactivity with ArBr and ArOTf as the phosphination reagents, though they are inert to the air and moisture. The reaction affords trivalent phosphines directly in good yields with a broad substrate scope and functional group tolerance. This reaction discloses the acylphosphines’ capability as new phosphorus sources for the direct
The rhodium-catalyzed methylenation of aldehydes using trimethylsilyldiazomethane and triphenylphosphine produces a variety of terminal alkenes in excellent yields. These mild and nonbasic reaction conditions allow the conversion of enolizable substrates (keto aldehydes and nonracemic alpha-substituted aldehydes) to terminal alkenes without epimerization. Optimization of the reaction conditions led
[EN] HEPATITIS C INHIBITOR COMPOUNDS<br/>[FR] COMPOSES INHIBITEURS DE L'HEPATITE C
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2004103996A1
公开(公告)日:2004-12-02
Compounds of formula (I): wherein B, X, R3, L0, L1, L2, R2, R1 and RC are defined herein. The compounds are useful as inhibitors of HCV NS3 protease for the treatment of hepatitis C viral infection.
A practical synthesis of unsymmetrical triarylphosphines by heterogeneous palladium(0)-catalyzed cross-coupling of aryl iodides with diphenylphosphine
作者:Zhaotao Xu、Pingping Wang、Qiurong Chen、Mingzhong Cai
DOI:10.1016/j.jorganchem.2018.04.018
日期:2018.7
The heterogeneous cross-coupling reaction of aryl iodides with diphenylphosphine was achieved in DMAc at 130 °C in the presence of 1.0 mol% of MCM-41-supported tridentate nitrogen palladium(0) complex [MCM-41-3N-Pd(0)] with KOAc as base, yielding a variety of unsymmetrical triarylphosphines in good to excellent yields. The turnover frequency (TOF) of the catalyst can reach 30.67 h−1. This new heterogeneous
An efficient heterogeneous cross-coupling of aryl iodides with diphenylphosphine catalyzed by copper (I) immobilized in MCM-41
作者:Zhiqiang Fang、Mingzhong Cai、Yang Lin、Hong Zhao
DOI:10.1002/aoc.4417
日期:2018.8
The heterogeneous cross‐coupling reaction of aryl iodides with diphenylphosphine was achieved in toluene at 115 °C in the presence of 10 mol% of phenanthroline‐functionalized MCM‐41‐supported copper (I) complex (Phen‐MCM‐41‐CuI) with Cs2CO3 as base, yielding various unsymmetric triarylphosphines in good to excellent yields. This protocol can tolerate a wide range of functional groups and does not need
在10 mol%的邻菲咯啉官能化的MCM-41-负载的铜(I)络合物(Phen-MCM-41-CuI)和10 mol%的存在下,芳基碘化物与二苯膦的异质交叉偶联反应在115°C的甲苯中完成以Cs 2 CO 3为碱,以良好或优异的产率产生各种不对称的三芳基膦。该方案可以耐受各种官能团,不需要使用昂贵的添加剂或苛刻的反应条件。这种非均相的Cu(I)催化剂具有与均相CuI / Phen系统相同的催化活性,可以通过简单过滤反应溶液轻松回收,并循环使用七次而不会显着降低活性。