Chiral 2,6-lutidinyl-biscarbene complexes of palladium

被引:186
作者
Tulloch, AAD
Danopoulos, AA [1 ]
Tizzard, GJ
Coles, SJ
Hursthouse, MB
Hay-Motherwell, RS
Motherwell, WB
机构
[1] Univ Southampton, Dept Chem, Southampton SO17 1BJ, Hants, England
[2] UCL, Christopher Ingold Labs, London WC1H 0AJ, England
关键词
D O I
10.1039/b103330c
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Chiral complexes of palladium, 1, with the new tridentate `pincer' ligand 2,6-lutidinyl-biscarbene (C<^>N<^>C), have been prepared; in the solid state they exhibit helical C-2 symmetrical structures which are persistent in solution at least up to 80 degreesC; the chiral nature of 1 has been established by NMR methods using Pirkle's acid as a chiral discriminating agent; racemic mixtures of 1 are highly active catalysts in Heck coupling reactions.
引用
收藏
页码:1270 / 1271
页数:2
相关论文
共 17 条
[1]   Stable carbenes [J].
Bourissou, D ;
Guerret, O ;
Gabbaï, FP ;
Bertrand, G .
CHEMICAL REVIEWS, 2000, 100 (01) :39-91
[2]   First chelated chiral N-Heterocyclic bis-carbene complexes [J].
Clyne, DS ;
Jin, J ;
Genest, E ;
Gallucci, JC ;
RajanBabu, TV .
ORGANIC LETTERS, 2000, 2 (08) :1125-1128
[3]   CARBENE COMPLEXES .19. OPTICALLY-ACTIVE ELECTRON-RICH OLEFIN-DERIVED CARBENE-TRANSITION-METAL COMPLEXES - CRYSTAL-STRUCTURES OF [RHCL(COD)(C7H12N2)], [RHCL(COD)(C9H16N2)], [RHCL(PPH3)2(C9H18N2)] AND [CO(CO)(NO)(PPH3)(C6H12N2)] [J].
COLEMAN, AW ;
HITCHCOCK, PB ;
LAPPERT, MF ;
MASKELL, RK ;
MULLER, JH .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1985, 296 (1-2) :173-196
[4]   Nitrogen-containing ligands for asymmetric homogeneous and heterogeneous catalysis [J].
Fache, F ;
Schulz, E ;
Tommasino, ML ;
Lemaire, M .
CHEMICAL REVIEWS, 2000, 100 (06) :2159-2231
[5]  
Green JC, 1997, CHEM COMMUN, P1963
[6]   N-heterocyclic carbenes [J].
Herrmann, WA ;
Kocher, C .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 1997, 36 (20) :2162-2187
[7]   Chiral oxazoline/imidazoline-2-ylidene complexes [J].
Herrmann, WA ;
Goossen, LJ ;
Spiegler, M .
ORGANOMETALLICS, 1998, 17 (11) :2162-2168
[8]   Chiral heterocyclic carbenes in asymmetric homogeneous catalysis [J].
Herrmann, WA ;
Goossen, LJ ;
Kocher, C ;
Artus, GRJ .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1996, 35 (23-24) :2805-2807
[9]  
HOVEIDA AH, 1998, METALLOCENES
[10]   Donor-functionalized heterocyclic carbene complexes of palladium(II): Efficient catalysts for C-C coupling reactions [J].
McGuinness, DS ;
Cavell, KJ .
ORGANOMETALLICS, 2000, 19 (05) :741-748