photoredox-catalyzed one-pot sulfone preparation is reported from alkyl bromides activated by silane-mediated halogen atom transfer. In the process, a previously unutilized SO2 adduct bis(piperidine) sulfur dioxide – or PIPSO – was found to be the best source of SO2 for radical capture under the reaction conditions. Alkyl and aryl sulfones were prepared as well as sulfonylated APIs.
据报道,由
硅烷介导的卤素原子转移活化的烷基
溴制备光氧化还原催化的一锅砜。在此过程中,人们发现之前未利用的 SO 2加合物双(
哌啶)
二氧化硫(
PIPSO)是反应条件下自由基捕获的最佳 SO 2来源。制备了烷基和芳基砜以及磺酰化 A
PI。