Direct Synthesis of Highly Substituted 2-Cyclohexenones and Sterically Hindered Benzophenones Based on a [5C + 1C] Annulation
作者:Zhenqian Fu、Mang Wang、Ying Dong、Jun Liu、Qun Liu
DOI:10.1021/jo9013386
日期:2009.8.21
DMF at room temperature, highly substituted 2-cyclohexenones 3 were synthesized in high to excellent diastereoselectivities with high yields. On the basis of this strategy, stericallyhindered benzophenones 4 were conveniently prepared via the iodonation−aromatization of 2-cyclohexenones 3 with I2 in MeONa/MeOH basic medium. Furthermore, benzophenones 4 were also obtained directly from 1 and 2 following