Synthesis and characterization of new chiral Rh(I) complexes with N, N′-, and N, P-ligands. A study of anchoring on the moodified zeolites and catalytic properties of heterogenized complexes
作者:A. Carmona、A. Corma、M. Iglesias、A. San José、F. Sánchez
DOI:10.1016/0022-328x(94)05195-h
日期:1995.4
Novel chiral bidentate N, N′- and N, P- donors and their rhodium complexes were synthesised and characterized. The reactions of [Rh(COD)Cl}2] and [RhCl(PPh3)3] with different prepared chiral ligands: if(S)-1-L-2-t-butylaminocarbonylpyrrolidine(1a, 1b), (S)-1-L-2-diphenylphosphinomethylpyrrolidine (2a, 2b), (S)-1-L-2-(1-naphthylaminocarbonyl)pyrrolidine (5a, 5b), (S)-1-L-2-(1-naphthylaminomethyl)pyrrolidine
合成并表征了新型手性双齿N,N'-和N,P-供体及其铑配合物。[Rh(COD)Cl} 2 ]和[RhCl(PPh 3)3 ]与制备的不同手性配体的反应:if(S)-1-L-2-t-丁基氨基羰基吡咯烷(1a,1b),(S)-1-L-2-二苯基膦基甲基吡咯烷(2a,2b),(S)-1-L-2-(1-萘氨基羰基)吡咯烷(5a,5b),(S)-1-L-2-(1-萘氨基甲基)吡咯烷(7a,7b)(a:L = t-butylaminocarbonyl,在一个非配位阴离子的存在(3- trietoxysilylpropyl)氨基羰基)(PF 6 - ),得到阳离子四配位的[Rh(L 2)(配体)] [PF 6 ](L 2 = rmCOD或PPH 3)。通过元素分析,红外光谱和1 H,13 C和31 P NMR测量阐明了这些络合物的结构。具有1b,2b,5b和7b的金属配合物,将其锚定在二氧化硅上,得到