Efficient and Selective Hydrosilylation of Carbonyl Compounds Catalyzed by Iron Acetate and
<i>N</i>
‐Hydroxyethylimidazolium Salts
作者:Elina Buitrago、Fredrik Tinnis、Hans Adolfsson
DOI:10.1002/adsc.201100606
日期:2012.1
alkyl, and dialkyl ketones were efficiently reduced to their corresponding primary and secondary alcohols, respectively, in high yields, using the commercially available and inexpensive polymeric silane, polymethylhydrosiloxane (PMHS), as reducing agent. The reaction is catalyzed by in situ generated iron complexes containing hydroxyethyl‐functionalized NHC ligands. Turnover frequencies up to 600 h−1
使用市售廉价的聚合硅烷,聚甲基氢硅氧烷(PMHS)作为还原剂,芳醛与芳基烷基,杂芳基烷基和二烷基酮分别有效地高产率分别还原为相应的伯醇和仲醇。原位生成的含羟乙基官能化NHC配体的铁络合物催化该反应。获得高达600 h -1的周转频率。