Rapid, chemoselective and mild oxidation protocol for alcohols and ethers with recyclable N-chloro-N-(phenylsulfonyl)benzenesulfonamide
作者:Amey Palav、Balu Misal、Prerna Ganwir、Purav Badani、Ganesh Chaturbhuj
DOI:10.1016/j.tetlet.2021.153094
日期:2021.6
most abundant element on the earth compared to bromine, iodine, and fluorine, a sulfonimide reagent, N-chloro-N-(phenylsulfonyl)benzenesulfonamide (NCBSI) was identified as a mild and selective oxidant. Without activation, the reagent was proved to oxidize primary and secondary alcohols as well as their symmetrical and mixed ethers to corresponding aldehydes and ketones. With recoverable PS-TEMPO catalyst
与溴、碘和氟(一种磺酰亚胺试剂)相比,氯是地球上第20 位最丰富的元素,N-氯-N-(苯磺酰基)苯磺酰胺 (NCBSI) 被确定为一种温和的选择性氧化剂。在没有活化的情况下,该试剂被证明可以将伯醇和仲醇以及它们的对称和混合醚氧化成相应的醛和酮。使用可回收的 PS-TEMPO 催化剂,实现了伯醇和仲醇及其醚与给电子取代基的氯化选择性氧化。NCBSI的试剂前体被定量回收,可重复用于合成NCBSI。