Synthesis of <i>gem</i>-Difluorinated 2,3-Dihydrobenzofurans Using Freon-22 via [4 + 1] Annulation of Difluorocarbene and Antitumor Activity Evaluation
作者:Qianying Zhou、Mi Huang、Yongcun Shen、Zhenling Chen、Liying Xu、Zhigang Yang
DOI:10.1021/acs.orglett.4c00011
日期:2024.2.16
efficient assembly of valuable fluorinated 2,3-dihydrobenzofurans from the [4 + 1] annulation in good yields under basic conditions. The reliable practicability and scalability of the process have also been demonstrated by preparation at the multigram scale, late-stage modifications of pharmaceutical molecules, and potential antitumor potency.