Palladium-Catalyzed Aminosulfonylation of <i>ortho</i>-Iodoanilines with the Insertion of Sulfur Dioxide for the Synthesis of 3,4-Dihydro-benzothiadiazine 1,1-Dioxides
作者:Zhenjie Qi、Simiaomiao Wen、Hao Li、Shuai Liu、Dongfang Jiang
DOI:10.1021/acs.orglett.3c02683
日期:2023.10.13
4-dihydro-benzothiadiazine 1,1-dioxides, which are formed through aminosulfonylation of ortho-iodoanilines with SO2. DABSO is utilized as the source of SO2, and the organic compound O2 acts as an oxidant. This direct C–S, S–N, and C–N functionalization is highly efficient, and broad functional group tolerance is observed, resulting in moderate to excellent yields of 3,4-dihydro-benzothiadiazine 1,1-dioxides. Furthermore
开发了一种简单高效的 Pd 催化氧化环化系统,用于化学和区域选择性合成 3,4-二氢苯并噻二嗪 1,1-二氧化物,该化合物是通过邻碘苯胺与 SO 2 的氨基磺酰化形成的。DABSO用作SO 2源,有机化合物O 2用作氧化剂。这种直接的 C-S、S-N 和 C-N 官能化非常有效,并且观察到广泛的官能团耐受性,从而产生中等至优异的 3,4-二氢-苯并噻二嗪 1,1-二氧化物。此外,该方法适合克级合成。