Preparation and multinuclear NMR and IR spectroscopic characterization of some complexes of acetyldiphenylphosphine, diphenyl(2-thienyl)phosphine, bis(2-thienyl)phenylphosphine and cyanodiphenylphosphine
作者:Ashima Varshney、Gary M. Gray
DOI:10.1016/s0020-1693(00)87504-0
日期:1988.8
The syntheses and multinuclear NMR and IR spectroscopic characterizations of some mononuclear Mo, Pd and Pt complexes of acetyldiphenylphosphine, diphenyl(2-thienyl)phosphine, bis(2-thienyl)phenylphosphine and cyanodiphenylphosphine are presented. The NMR and IR spectra of the Mo carbonyl complexes indicate that the electron-donor ability of the P substituents increases in the order CN < C(O)Me < 2-thienyl
PREPARATION OF NITRILES FROM ETHYLENICALLY UNSATURATED COMPOUNDS
申请人:Mastroianni Sergio
公开号:US20110118499A1
公开(公告)日:2011-05-19
A process for the hydrocyanation of a hydrocarbon-based compound having at least one site of ethylenic unsaturation into a nitrile compound includes reaction thereof, in a liquid medium, with hydrogen cyanide in the presence of a catalyst containing a metal element selected from among the transition metals and an organophosphorus ligand, wherein the organophosphorus ligand is a compound of formula (I):
The subject process is particularly useful for the synthesis of adiponitrile from butadiene.
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。
Palladium-catalyzed C–P(III) bond formation reaction with acylphosphines as phosphorus source
作者:Rongrong Yu、Xingyu Chen、Zhiqian Wang
DOI:10.1016/j.tetlet.2016.06.088
日期:2016.7
Palladium-catalyzed C–P(III) bond formation reaction employing acylphosphines as the phosphorus source was developed. Under the optimized conditions, acylphosphines could react with aryl halides directly affording trivalent phosphines in up to 94% yield.