作者:Michael P. Doyle、Charles T. West、Stephen J. Donnelly、Charles C. McOsker
DOI:10.1016/s0022-328x(00)87264-2
日期:1976.9
trifluoride is consumed and fluorosilanes are formed. Reductions of aldehydes and ketones by triethylsilane produce, after hydrolysis, alcohols and symmetrical ethers or, when aryl ketones are reduced, hydrocarbons. Two new synthetic transformations involving organosilanes, reductive elimination and acylation-reduction, are described. The mechanism of reduction in BF3 · Et2O is suggested to involve hydrosilylation
通过消耗三氟化硼并形成氟硅烷的过程,三氟化硼醚化物中的有机硅烷选择性地还原了醛和酮。在水解后,三乙基硅烷还原醛和酮会生成醇和对称醚,或者当芳基酮被还原时会生成烃。描述了涉及有机硅烷的两个新的合成转化,还原消除和酰化还原。BF 3 ·Et 2还原的机理建议O涉及三氟化硼活化的羰基的氢化硅烷化,然后氟化物在硅处置换。描述了在与烷基取代的环己酮反应中三氟化硼催化的还原反应的立体选择性,并将其与其他酸催化剂的类似转化进行了比较。立体化学数据表明,在氢化物转移反应中,路易斯酸与羰基氧的络合在确定产物选择性中起主要作用。