Stereoselective synthesis and catalytic behavior of rhodium(II) compounds with metalated chiral phospholanes as ligands

被引：16
作者：
Estevan, F
Lahuerta, P
Lloret, J
Pérez-Prieto, J
Werner, H
机构：
[1] Univ Valencia, Fac Quim, Dept Quim Inorgan, E-46100 Valencia, Spain
[2] Univ Valencia, Fac Farm, Dept Quim Organ, Inst Ciencia Mol, E-46100 Valencia, Spain
[3] Univ Wurzburg, Inst Anorgan Chem, D-97074 Wurzburg, Germany
来源：
ORGANOMETALLICS | 2004年 / 23卷 / 06期
关键词：
D O I：
10.1021/om030596+
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The reaction of Rh-2(O2CR)(4) (R = CH3, CF3) with the chiral phosphine (2R,5R)-2,5-dimethyl-1-phenylphospholane (1) results in the formation of the mono-metalated compounds Rh-2(O2CR)(3)[PC*] (PC*H = (2R,5R)-2,5-dimethyl-1-phenylphospholane; R = CH3 (2), CF3 (3)) in high yield. The diastereoisomers Rh-2(O2CR)(2)[PC*](2) ((P)-4 and (M)-6) are formed in a 3:1 ratio by thermal reaction of 2 with phosphine 1. However, the photochemical reaction of 2 with phosphine 1 in the presence of trifluoroacetic acid afforded compounds (P)-5 and M-7 in a 1:9 ratio. All these compounds, isolated as solvates with two molecules of RCO2H, were tested in the catalytic transformation of alpha-diazo compounds, with 3 and M-7 showing the highest selectivity.
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页码：1369 / 1372
页数：4
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