Disproportionation reaction of diarylmethylisopropyl ethers: a versatile access to diarylmethanes from diarylcarbinols speeded up by the use of microwave irradiation
作者:Nathalie L'Hermite、Anne Giraud、Olivier Provot、Jean-François Peyrat、Mouâd Alami、Jean-Daniel Brion
DOI:10.1016/j.tet.2006.09.083
日期:2006.12
An efficient synthesis of diarylmethanes under classical thermal conditions and under microwave heating is described from diarylcarbinols via a new disproportionation reaction. The key step involves a selective hydride transfer of isopropyl ether intermediates. Mild reaction conditions i.e., catalytic CBr4 or TfOH in i-PrOH and good yields render this method useful and competitive to the conventional
描述了在二元芳基甲醇中通过新的歧化反应在经典的热条件下和在微波加热下的二芳基甲烷的有效合成。关键步骤涉及异丙醚中间体的氢化物选择性转移。温和的反应条件,即i -PrOH中的催化CBr 4或TfOH和良好的收率,使得该方法相对于依赖于外部还原剂应用的常规方法而言是有用的且具有竞争力。