异己烯置于c33H58Con3Psi2,1,3-二甲基-1,3,2-二氮杂硼杂环戊烷体系中,用 Neat (No Solvent) 作为反应溶剂,化学反应 18.0H,反应生成 4-甲基-1-戊醇
参考文献:钴和铁催化的异构化-支链烯烃的加氢硼化:品加烷硼烷和1,3,2-二氮杂硼烷的末端硼氢化
标题:钴和铁催化的异构化-支链烯烃的加氢硼化:品加烷硼烷和1,3,2-二氮杂硼烷的末端硼氢化
摘要:The Synthesis And Characterization Of A Series Of Structurally Varied N-Phosphinoamidinate-Ligated Cobalt Complexes Is Described,Along With The Successful Application Of These And A Related Iron Complex As Precatalysts In The Isomerization Hydroboration Of Terminal,Geminal,And Internal Alkenes. These Reactions Proceed Under Mild Conditions (23-65 Degrees C),At Relatively Low Base-Metal Loadings (1-5 Mol %),Typically Without Cosolvent,And With High Terminal Hydroboration Selectivity Across A Broad Spectrum Of Branched Alkenes. With Some Of The Alkene Substrates Examined,The Nphosphinoamidinate-Ligated Precatalysts Employed Herein Are Shown To Provide Alternative Terminal Selectivity Versus Other Previously Reported Precatalyst Classes For Such Transformations. Reports Of Terminal-Selective Metal-Catalyzed Alkene Isomerization Hydroboration Disclosed Thus Far In The Literature Employ Pinacolborane (Hbpin); While Effective In The System Herein,We Also Report The First Examples Of Such Transformations Employing Either 1,3-Dimethyl-1,3-Diaza-2-Boracydopentane Or Benzo-1,3,2-Diazaborolane. The Application Of These 1,3,2-Diazaborolanes In Place Of Hbpin In Some Instances Enables Novel Terminal Selectivity In The Isomerization Hydroboration Of Branched Alkenes.
DOI:10.1021/acs.Organomet.6B00823