BF 3 ·OEt 2 -mediated [1,2]-aryl shift: Synthesis of functionalized α-arylnitriles via the bromination/cyanation/deformylation of substituted deoxybenzoin
作者:Chieh-Kai Chan、Meng-Yang Chang
DOI:10.1016/j.tet.2017.07.015
日期:2017.8
A new sequential, tandem synthesis of functionalized α-arylnitriles via the bromination/cyanation/deformylation of substituted deoxybenzoin has developed. CuBr2-promoted bromination of substituted deoxybenzoins gives 2-bromo-2-arylacetophenne 3. The cyanation of 3 with sodium cyanide (NaCN) generates epoxynitrile. Then, a treatment of epoxynitrile with BF3·OEt2 results in the formation of functionalized
通过取代的脱氧安息香素的溴化/氰化/去甲酰基化,开发了一种新的顺序串联的官能化α-芳基腈的合成方法。CuBr 2促进的取代脱氧安息香素的溴化反应生成2-溴-2-芳基乙酰基3。的氰化3用氰化钠(NaCN的)epoxynitrile生成。然后,用BF 3 · OEt 2处理环氧腈导致通过1,2-芳基转移形成官能化的α-芳基腈4。