Dehydrogenation of cycloalkanes at rhodium complexes bearing fluorinated cyclopentadienyl ligands

被引：2

作者：

Liebau, Frank ^{[1
]}

Braun, Thomas ^{[1
]}

Braun, Beatrice ^{[1
]}

机构：

[1] Humboldt Univ, Dept Chem, D-12489 Berlin, Germany

来源：

JOURNAL OF FLUORINE CHEMISTRY | 2015年 / 180卷

关键词：

Dehydrogenation reactions; Rhodium; Perfluorinated solvents; C-H activation; Cyclopentadienyl complexes; C-H BOND; THERMOCHEMICAL ALKANE DEHYDROGENATION; TRANSITION-METAL CATALYSIS; ACCEPTOR PINCER CHEMISTRY; ORGANOMETALLIC COMPLEXES; F ACTIVATION; SUBSTITUTED CYCLOPENTADIENES; IMMOBILIZATION PRINCIPLE; PRACTICAL APPLICATION; IRIDIUM CATALYSTS;

D O I：

10.1016/j.jfluchem.2015.09.014

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The fluorinated cyclopentadienyl complexes [Rh(eta(5)-C5H4CH2CH2C6F13)(CO)(2)] (2), [Rh(eta(5)-C5H4CH2CH2C8F17)(CO)(2)] (3), [Rh(eta(5)-C5H4CH2CH2C10F21)(CO)(2)] (4), [Rh(eta(5)-C5H4CH2CH2CnF2n+1)(CO)(-PEt3)] (7: n = 6; 8: n = 8; 9: n = 10) and [Rh(eta(5)-C5H4CH2CH2CnF2n+1)(CO)[P(CH2CH2C6F13)(3))] (10; n = 8; 11: n = 10) were synthesized and their reactivity was investigated. Compound 3 converts at room temperature into the trinuclear complex [Rh-2(eta(5)-C5H4CH2CH2C8F17)(2)(mu-CO)(2)Rh(eta(5)-C5H4CH2CH2C8F17)(CO)] (6). The complexes 9 and 11 were employed in dehydrogenation reactions of cycloalkanes in C6F14/hydrocarbon mixtures. Photocatalytic conversions were observed and a turnover number of 16 for the dehydrogenation of cyclooctane with complex 11 was obtained. (C) 2015 Elsevier B.V. All rights reserved.

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页码：192 / 200

页数：9

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