Chelate complexes of PdII, RhI, and PtII with P*,P-bidentate phosphine-bicyclophosphoramidite

IF 1.7 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Russian Chemical Bulletin Pub Date : 2025-09-12 DOI:10.1007/s11172-025-4739-7

I. V. Chuchelkin, A. I. Lukankov, V. K. Gavrilov, I. D. Firsin, E. S. Rud, D. A. Fedorov, A. N. Rodionov, K. N. Gavrilov

引用次数: 0

Abstract

The synthesis of the cis-chelates [Pd(DPA)L]BF₄, [Rh(COD)L]BF₄ (DPA is diphenylallyl, COD is 1,5-cyclooctadiene), and PtLCl₂ with a P*,P-ligand (L) containing the rigid P-chiral bicyclophosphoramidite and phosphine donor centers was reported. The composition and structures of the complexes were confirmed by NMR spectroscopy and elemental analysis. The cationic compounds [Rh(COD)L]BF₄ and [Pd(DPA)L]BF₄ were additionally characterized by high-resolution mass spectrometry. The use of [Rh(COD)L]BF₄ (1 mol.%) in the Rh-catalyzed asymmetric hydrogenation of dimethyl itaconate provided up to 98% ee with the complete conversion of the starting substrate.

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PdII， RhI和PtII与P*，P-双齿膦-双环磷酸酰胺的螯合配合物

报道了以P*，P-配体(L)为刚性P-手性双环磷酸酰胺和膦供体中心的顺式螯合物[Pd(DPA)L]BF4, [Rh(COD)L]BF4 （DPA为二苯丙烯基，COD为1,5-环二烯）和PtLCl2的合成。通过核磁共振波谱和元素分析证实了配合物的组成和结构。采用高分辨率质谱法对阳离子化合物[Rh(COD)L]BF4和[Pd(DPA)L]BF4进行了表征。在Rh催化的衣康酸二甲酯不对称加氢反应中，[Rh(COD)L]BF4 （1mol .%）的使用可提供高达98%的ee，起始底物完全转化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Russian Chemical Bulletin 化学-化学综合

CiteScore

2.70

自引率

47.10%

发文量

257

审稿时长

3-8 weeks

期刊介绍： Publishing nearly 500 original articles a year, by leading Scientists from Russia and throughout the world, Russian Chemical Bulletin is a prominent international journal. The coverage of the journal spans practically all areas of fundamental chemical research and is presented in five sections: General and Inorganic Chemistry; Physical Chemistry; Organic Chemistry; Organometallic Chemistry; Chemistry of Natural Compounds and Bioorganic Chemistry.