Preparation of Thietane Derivatives through Domino Photochemical Norrish Type II/Thia-Paternò–Büchi Reactions
作者:Maria I. Lapuh、Gabriel Cormier、Slimane Chergui、David J. Aitken、Thomas Boddaert
DOI:10.1021/acs.orglett.2c03428
日期:2022.11.18
This work describes straightforward access to a large collection of thietane derivatives through an innovative two-step domino photochemical reaction involving a Norrish type II fragmentation and a thia-Paternò–Büchi reaction. Starting from stable phenacyl sulfides, unprecedented thiocarbonyl intermediates were generated in situ and reacted with diverse electron-deficient alkene partners to form a
这项工作描述了通过创新的两步多米诺骨牌光化学反应直接获取大量硫杂环丁烷衍生物的方法,该反应涉及 Norrish II 型碎裂和硫杂-帕特诺-Büchi 反应。从稳定的苯甲酰硫化物开始,原位生成了前所未有的硫代羰基中间体,并与多种缺电子烯烃伙伴反应形成硫杂环丁烷核。管理此 [2+2] 光环加成的区域选择性和非对映选择性的规则已被合理化并针对许多底物得到完全控制。