Optically active phospholanes as substituents on ferrocene and chromium arene complexes

被引：20

作者：

Braun, W

Calmuschi, B

Haberland, J

Hummel, W

Liese, A

Nickel, T

Stelzer, O

Salzer, A ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Inst Anorgan Chem, D-52074 Aachen, Germany

[2] Forschungszentrum Julich, Inst Biotechnol, D-52425 Julich, Germany

[3] Forschungszentrum Julich, Inst Enzymtechnol, D-52426 Julich, Germany

[4] Berg Univ Wuppertal, Fachbereich Chem, D-42097 Wuppertal, Germany

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2004年 / 11期

关键词：

iron; chromium; sandwich complexes; P ligands; asymmetric catalysis;

D O I：

10.1002/ejic.200300685

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

An improved synthesis of (R,R)- and (S,S)-hexane-2,5-diol is presented. The (S,S) -derivative was converted into a cyclic sulfate, which on treatment with NaPH2 in liquid ammonia ultimately gave the secondary (R,R)-2,5-dimethylphospholane. This phospholane can be introduced into the side chain of chiral tricarbonylchromium. and ferrocene derivatives to give new bidentate ligands of the Josiphos and Damphos type. Both the ferrocene- and tricarbonylchromium-based diphosphanes have been characterized by X-ray diffraction analysis. A discussion of their structural features is included. The new ligands were successfully applied to the enantioselective hydrogenation of itaconic acid esters. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004).

引用

页码：2235 / 2243

页数：9

共 58 条

[31] New continuous production process for enantiopure (2R,5R)-hexanediol [J].