Lithium triethylborohydride as catalyst for solvent-free hydroboration of aldehydes and ketones
作者:Krzysztof Kuciński、Grzegorz Hreczycho
DOI:10.1039/c9gc00216b
日期:——
Commercially available and inexpensive lithium triethylborohydride (LiHBEt3) acts as efficient catalyst for the solvent-free hydroboration of a wide range of aldehydes and ketones, which were subsequently transformed to corresponding 1° and 2° alcohols in one-pot procedure at room temperature (rt).
Titanocene(II)-Catalyzed Hydroboration of Carbonyl Compounds
作者:Abdulafeez A. Oluyadi、Shuhua Ma、Clare N. Muhoro
DOI:10.1021/om300828m
日期:2013.1.14
yields. Complex 1 demonstrated a preference for C═O bonds over C═C bonds in both conjugated and nonconjugated enones. Kinetic studies of the catalytic hydroboration of a series of acetophenones showed that electron-poor substrates undergo the reaction more quickly than electron-rich substrates. This result is consistent with the proposed mechanism, in which stronger π-acids should undergo C═O bond cleavage