Copper-Catalyzed, Interrupted Remote Fluoromethylthiolation of Unactivated C(sp3)-H Bonds
作者:Fan Yu、Wengui Wang、Shoufeng Wang
DOI:10.1021/acs.orglett.4c00336
日期:2024.3.15
An efficient copper-catalyzed selective fluoromethylthiolation of an inert δ-C(sp3)–H bond in sulfonamides was reported. In the presence of a copper catalyst and PhSO2SRf, the radical generated through 1,5-hydrogen atom transfer (HAT) was sufficiently trapped by PhSO2SRf, instead of copper, which was prevalent in metal-catalyzed radical-relay processes, incorporating a fluoromethylthio group into molecules
报道了磺酰胺中惰性 δ-C(sp 3 )-H 键的高效铜催化选择性氟甲基硫基化反应。在铜催化剂和PhSO 2 SR f的存在下,通过1,5-氢原子转移(HAT)产生的自由基被PhSO 2 SR f充分捕获,而不是金属催化自由基继电器中普遍存在的铜。过程,将氟甲硫基结合到分子中。通用的底物范围和温和的条件使该方法在医药和农用化学品中具有广泛的潜在应用。