The primary alcohols 1a-e and ethers 4a-d were effectively reduced to the corresponding hydrocarbons 2 by HSiEt(3) in the presence of catalytic amounts of B(C(6)F(5))(3). To the best of our knowledge, this is the first example of catalytic use of Lewis acid in the reduction of alcohols and ethers with hydrosilanes. The secondary alkyl ethers 4j,k enabled cleavage and/or reduction under similar reaction
在催化量的B(C(6)F(5))(3)存在下,HSiEt(3)将伯醇1a-e和醚4a-d有效还原为相应的烃2。据我们所知,这是
路易斯酸催化用氢
硅烷还原醇和醚的第一个例子。仲烷基醚4j,k能够在相似的反应条件下裂解和/或还原,从而在随后用TBAF脱保护时产生甲
硅烷基醚3m-n或相应的醇5a。发现仲醇1g-i和叔醇1j以及叔烷基醚4l没有与HSiEt(3)/(B(C(6)F(5))(3)还原剂反应发现底物的以下相对反应顺序:初级>>次级>第三级。