Late-Stage Two-Step C11─H Arylation of Dibenzooxa/thiazepines
作者:Yang Chen、Mengyao Ma、Hongguang Du、Jiaxi Xu、Zhanhui Yang
DOI:10.1055/a-2038-2323
日期:——
A practical and efficientsynthesis of 11-aryldibenzooxa/thiazepines is achieved, via a late-stage and two-step C11–H arylation of simple dibenzooxa/thiazepines. The adoption of Grignard addition and DDQ dehydrogenation allows for operationally simple and chemically reliable, step-efficient, and high-yielding transformations. The two-step and one-pot procedures provide excellent yields. The gram-scale