Rhodium-Complex-Catalyzed Hydroformylation of Olefins with CO₂ and Hydrosilane

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• 作者：Xinyi Ren ; Dr. Zhiyao Zheng ; Dr. Lei Zhang ; Dr. Zheng Wang ; Prof. Dr. Chungu Xia and Prof. Dr. Kuiling Ding
• 刊名：Angewandte Chemie
• 出版年：2017
• 出版时间：January 2, 2017
• 年：2017
• 卷：129
• 期：1
• 页码：316-319
• 全文大小：611K
• ISSN：1521-3757

文摘

A rhodium-catalyzed one-pot hydroformylation of olefins with CO₂ , hydrosilane, and H₂ has been developed that affords the aldehydes in good chemoselectivities at low catalyst loading. Mechanistic studies indicate that the transformation is likely to proceed through a tandem sequence of poly(methylhydrosiloxane) (PMHS) mediated CO₂ reduction to CO and a conventional rhodium-catalyzed hydroformylation with CO/H₂. The hydrosilylane-mediated reduction of CO₂ in preference to aldehydes was found to be crucial for the selective formation of aldehydes under the reaction conditions.