Synthesis of Ru-arene complexes of Me-Duphos. X-ray, PGSE NMR diffusion and catalytic studies

被引:39
作者
Chen, Y
Valentini, M
Pregosin, PS [1 ]
Albinati, A
机构
[1] ETH Zurich, Anorgan Chem Lab, CH-8093 Zurich, Switzerland
[2] Univ Milan, I-20131 Milan, Italy
关键词
Ru-arene complexes; Me-Duphos; PGSE; diffusion and catalytic studies;
D O I
10.1016/S0020-1693(01)00680-6
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Cationic [RuCl(arene)(Me-Duphos)]Cl complexes, arene = eta(6)-benzene and eta(6)-p-cymene, Me-Duphos = 1,2-bis-((2R,5R)-2,5-dimethylphospholano) benzene) have been prepared and studied by X-ray crystallography and NMR spectroscopy. PGSE NMR diffusion studies have been used to recognize (a) ion pairing as a function of solvent and (b) larger molecular volumes. Several arene-Ru-complexes have been shown to be useful catalyst precursors in the hydrolysis of terminal aryl alkynes to afford acetophenones. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:4 / 14
页数:11
相关论文
共 62 条
[41]  
PREGOSIN PS, 1987, PHOSPHORUS 31 NMR SP, V8, P465
[42]  
PREGOSIN PS, 1979, 31P 13C NMR TRANSITI, V16
[43]   Synthesis and structure of the chiral dihydrogen complex trans-[Ru(eta(2)-H-2)H(R,R'-Me-DuPHOS)(2)]PF6 and the dinitrogen complex trans-[Ru(N-2)H(R,R'-Me-DuPHOS)(2)]PF6 (R,R'-Me-DuPHOS equals 1,2-bis((2R,5R)-2,5-dimethylphospholano)benzene) [J].
Schlaf, M ;
Lough, AJ ;
Morris, RH .
ORGANOMETALLICS, 1997, 16 (06) :1253-1259
[44]   New developments in enantioselective hydrogenation [J].
Schmid, R ;
Broger, EA ;
Cereghetti, M ;
Crameri, Y ;
Foricher, J ;
Lalonde, M ;
Muller, RK ;
Scalone, M ;
Schoettel, G ;
Zutter, U .
PURE AND APPLIED CHEMISTRY, 1996, 68 (01) :131-138
[45]  
SHELDRICK GM, 1997, SHELX 97 STRUCTURE S
[46]  
*SIEM AN INSTR, 1996, SAINT SAX AR DET INT
[47]   Sequential C-H and C-Ru bond formation and cleavage during the thermally induced rearrangement of aryl ruthenium(II) complexes with [C6H3(CH2NMe2)2-2,6]- as a bidentate η2-C,N coordinated ligand.: The crystal structures of the isomeric pairs [RuCl{η6-C10H14}{η2-C,N-C6H3(CH2NMe2)2-2,n}] (n = 4 or 6) and [Ru(η5-C5H5){(η2-C,N-C6H3(CH2NMe2)2-2,n} (PPH3)] (n = 4 or 6) [J].
Steenwinkel, P ;
James, SL ;
Gossage, RA ;
Grove, DM ;
Kooijman, H ;
Smeets, WJJ ;
Spek, AL ;
van Koten, G .
ORGANOMETALLICS, 1998, 17 (21) :4680-4693
[48]  
Stilbs P, 1987, PROG NUCL MAG RES SP, V19, P1, DOI 10.1016/0079-6565(87)80007-9
[49]   NEW CHIRAL RUTHENIUM COMPLEXES FOR ASYMMETRIC CATALYTIC HYDROGENATIONS [J].
TAKAYA, H ;
OHTA, T ;
MASHIMA, K ;
NOYORI, R .
PURE AND APPLIED CHEMISTRY, 1990, 62 (06) :1135-1138
[50]  
Takaya H., 1991, COMPREHENSIVE ORGANI, V8, P443