Ammonia borane-enabled hydrogen transfer processes:Insights into catalytic strategies and mechanisms  

作　　者：Wenfeng Zhao Hu Li Heng Zhang Song Yang Anders Riisager 

机构地区：[1]State Key Laboratory Breeding Base of Green Pesticide&Agricultural Bioengineering,Key Laboratory of Green Pesticide&Agricultural Bioengineering,Ministry of Education,State-Local Joint Laboratory for Comprehensive Utilization of Biomass,Center for Research&Development of Fine Chemicals,Guizhou University,Guiyang,550025,China [2]Centre for Catalysis and Sustainable Chemistry,Department of Chemistry,Kemitorvet Building 207,Technical University of Denmark,DK-2800 Kgs.Lyngby,Denmark

出　　处：《Green Energy & Environment》2023年第4期948-971,共24页绿色能源与环境（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (21908033,21576059,21666008);Fok Ying-Tong Education Foundation (161030);the Program of Introducing Talents of Discipline to Universities of China (111 Program,D20023);Guizhou Frontiers Science Center for Asymmetric Synthesis and Medicinal Molecules ([2020]004)。

摘　　要：Transfer hydrogenation(TH) with in situ generated hydrogen donor is of great importance in reduction reactions, and an alternative strategy to traditional hydrogenation processes involving pressurized molecular hydrogen. Ammonia borane(NH3BH3, AB) is a promising material of hydrogen storage, and it has attracted much attention in reductive organic transformations owing to its high activity, good atom economy, nontoxicity, sustainability, and ease of transport and storage. This review focuses on summarizing the recent progress of AB-mediated TH reactions of diverse substrates including nitro compounds, nitriles, imines, alkenes, alkynes, carbonyl compounds(ketones and aldehydes), carbon dioxide,and N-and O-heterocycles. Syntheses protocols(metal-containing and metal-free), the effect of reaction parameters, product distribution, and variation of reactivity are surveyed, and the mechanism of each reaction involving the action mode of AB as well as structure-activity relationships is discussed in detail. Finally, perspectives are presented to highlight the challenges and opportunities for AB-enabled TH reactions of unsaturated compounds.

关 键 词：Transfer hydrogenation Ammonia borane Hydrogen donor Reaction mechanism Catalytic strategies 

分 类 号：TQ426[化学工程] TQ116.2