Molybdenum-Catalyzed Cross-Coupling of Benzyl Alcohols: Direct C–OH Bond Transformation via [2 + 2]-Type Addition and Elimination
作者:Pan Zhou、Yuqiang Li、Tao XU
DOI:10.1021/acs.orglett.2c01537
日期:2022.6.17
Traditional cross-couplings catalyzed by transitionmetal catalysts generally rely on the classic oxidative addition–transmetalation–reductive elimination process, which requires low-valent precious metals and an inert atmosphere and which initiates from carbon–alide or pesudo carbon–halide bonds. Herein, an unprecedented molybdenum–oxo-complex-catalyzed intermolecular cross-coupling of benzyl alcohols
of tertiary and secondary alcohols to give the corresponding alkanes is conventionally performed using an organosilane and a strong acid. In this study, a deoxygenation method was developed for tertiary and secondary alcohols, using trimethylsilane and trimethylsilyl iodide generated in situ from sodium borohydride and trimethylsilyl chloride, and trimethylsilyl chloride and potassium iodide, respectively