Photocatalytic Late-Stage Functionalization of Sulfonamides via Sulfonyl Radical Intermediates
作者:Michael J. Tilby、Damien F. Dewez、Loïc R. E. Pantaine、Adrian Hall、Carolina Martínez-Lamenca、Michael C. Willis
DOI:10.1021/acscatal.2c01442
日期:——
access radical chemistry, which is harnessed by combining pharmaceutically relevant sulfonamides with an assortment of alkene fragments. Additionally, the sulfinate anion can be readily obtained, further broadening the options for sulfonamide functionalization. Mechanistic studies suggest that energy-transfer catalysis (EnT) is in operation.
大量的药物分子和农用化学品都含有磺胺官能团。然而,磺胺类药物很少被视为合成有用的官能团。为了应对这一限制,本文描述了一种后期功能化策略,该策略允许磺胺类药物转化为关键的磺酰基自由基中间体。该方法利用无金属光催化方法来获得自由基化学,该方法通过将药学相关的磺胺类药物与各种烯烃片段结合来加以利用。此外,亚磺酸根阴离子可以很容易地获得,进一步拓宽了磺胺官能化的选择范围。机理研究表明,能量转移催化(EnT)正在运行。