Iminophosphines: synthesis, formation of 2,3-dihydro-1H-benzo[1,3]azaphosphol-3-ium salts and N-(pyridin-2-yl)-2-diphenylphosphinoylaniline, coordination chemistry and applications in platinum group catalyzed Suzuki coupling reactions and hydrosilylations
作者:Simon Doherty、Julian G Knight、Tom H Scanlan、Mark R.J Elsegood、William Clegg
DOI:10.1016/s0022-328x(02)01203-2
日期:2002.5
been characterized by a single-crystal X-ray structure determination. The bidentate iminophosphine 2-Ph2PC6H4NC(H)Ph reacts with [(cycloocta-1,5-diene)PdClX] X=Cl, Me) to give [Pd2-Ph2PC6H4NC(H)Ph}ClX] and the imino-diphosphine 2-Ph2PC6H4NC(H)C6H4-PPh2 reacts with [(cycloocta-1,5-diene)PdClMe] to give [Pd2-Ph2PC6H4NC(H)C6H4PPh2}ClMe] and each has been characterized by single-crystal X-ray crystallography
非质子和质子双环和多齿iminophosphines 2-PH 2 PC 6 H ^ 4 NCR 1 - [R 2(R 1 = H,R 2 =苯基= 2a中; R 1 =我- [R 2 =苯基= 2b中; R 1 = H,R 2= 2-噻吩基=2c; R 1= H,R 2= C 6 H 4 -2-PPh 2=2d; R 1= H,R 2= C 6 H 4 -2-OH =2e, [R 1= H,R 2= C 6 H 4 -2-OH-3-Bu t=2f;n= 1 。R 1 = H,R 2 = CH 2 C(O)Me = 2g)是通过2-(二苯基膦基)苯胺与相应的醛-酮的酸催化缩合制备的。亚氨基膦图2d可以用氰基硼氢化钠还原,得到相应的氨基二膦2-PH 2 PC 6 H ^ 4 N(H)CH 2 C ^ 6 ħ 4 -2-PPH 2(2H)。在化学计算量的酸存在下,2-(二苯基膦基)苯胺以意外
Room-temperature nickel-catalysed cross-couplings of aryl chlorides with arylzincs
作者:Ning Liu、Li Wang、Zhong-Xia Wang
DOI:10.1039/c0cc03064c
日期:——
P,N,O-chelate nickel complexes efficiently catalyse the cross-coupling reaction of arylchlorides with arylzinc reagents in a 1:1 THF-NMP mixture. The reactions proceed at room temperature with low catalyst loading.
作者:Chris J. Adams、Michael I. Bruce、Paul A. Duckworth、Paul A. Humphrey、Olaf Kühl、Edward R.T. Tiekink、William R. Cullen、Pierre Braunstein、Silverio Coco Cea、Brian W. Skelton、Allan H. White
DOI:10.1016/0022-328x(94)80013-8
日期:1994.3
M3LnPR2(C6H4X)} [M3Ln= (Ru/Os3(CO)11 or RU3(μ-dppm)(CO)9; X=NH2, NHCOPh, N=CHPh, CHO or CH=NNHAr, but not all combinations] have been prepared and their reactions studied. Predominant were H-migrations from the ary] substituent X to cluster; less facile were CC bondcleavage reactions, and PC bondcleavages were not observed. Under the conditions used, the complexes Ru3(CO)11PPh2(C6H4X-2)} were transient
M 3 L n PR 2(C 6 H 4 X)}类型的几种配合物[M 3 L n =(Ru / Os 3(CO)11或RU 3(μ-dppm)(CO)9; X =制备了NH 2,NHCOPh,N = CHPh,CHO或CH = NNHAr,但并未研究所有反应,主要是H从芳基取代基X迁移至簇;CC键断裂较不容易没有观察到反应,没有观察到PC键断裂。在所用条件下,络合物Ru 3(CO)11 PPh 2(C 6 H4 X-2)}均RU的形成瞬时中间体3(μ-H)μ-PPH 2(C 6 H ^ 4(XH)-2)}(CO)9 ; 类似的Ru 3(μ-dppm)和Os 3(μ-dppm)配合物更坚固。对于通过RU 3(CO)12和相关配合物与PPh 2 CH 2 C(O)Ph}}反应制得的簇,发现了相似的反应,其中H从配体向簇的迁移导致形成膦-烯酸酯体系。报道了配合物Os 3(CO)11
Intra- and Intermolecular Hydroamination of Alkynes Catalyzed by <i>ortho</i>-Metalated Iridium Complexes
作者:Rung-Yi Lai、K. Surekha、Akito Hayashi、Fumiyuki Ozawa、Yi-Hong Liu、Shie-Ming Peng、Shiuh-Tzung Liu
DOI:10.1021/om060965c
日期:2007.2.1
All iridium complexes are not good catalysts for hydroamination. However, the combination of 5 with NaB[3,5-C6H3(CF3)2]4 (denoted as NaBArF4) provides a potent catalytic system for both intra- and intermolecularhydroamination of alkynes. Intramolecular reaction of o-(2-phenylethynyl)anilines produces the corresponding indoles in good yields. Furthermore, intermolecularhydroamination takes place smoothly
Palladium(II) Complexes with Phosphorus−Nitrogen Mixed Donors. Efficient Catalysts for the Heck Reaction
作者:K. Rajender Reddy、K. Surekha、Gene-Hsiang Lee、Shie-Ming Peng、Shiuh-Tzung Liu
DOI:10.1021/om000089h
日期:2000.6.1
Pd(II) complexes of phosphine−nitrogen (P−N) bidentate donors act as efficientcatalysts for the Heckreaction. In a typical example, reaction of phenyl iodide with methyl acrylate in N-methylpyrrolidinone (NMP) at ca. 130 °C provides the Heck product with a turnover number of up to 106. In addition, the coupling reaction of 4-bromoacetophenone with olefin in a quantitative yield was achieved by using