Instant ligand libraries. Parallel synthesis of monodentate phosphoramidites and in situ screening in asymmetric hydrogenation

被引:86
作者
Lefort, L [1 ]
Boogers, JAF [1 ]
de Vries, AHM [1 ]
de Vries, JG [1 ]
机构
[1] DSM Res BV, Pharma Chem Adv Synth, Catal & Dev, NL-6160 MD Geleen, Netherlands
关键词
D O I
10.1021/ol049510e
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Chiral phosphoramidites have been identified as excellent ligands for various metal-catalyzed enantioselective transformations. Taking advantage of their easy preparation and modular nature, we designed a fully automated protocol for the parallel preparation of a library of 32 phosphoramidites and its screening in asymmetric hydrogenation of amino acid precursors. This initial study led to the discovery of a new ligand for the preparation of an enantiopure beta(3)-homoalanine precursor.
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页码:1733 / 1735
页数:3
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