Carbene-Catalyzed Access to Thiochromene Derivatives: Control of Reaction Pathways via Slow Release of Thiols from Disulfides
作者:Qifei Wu、Shuquan Wu、Juan Zou、Qingyun Wang、Chengli Mou、Pengcheng Zheng、Yonggui Robin Chi
DOI:10.1021/acs.orglett.3c01414
日期:2023.6.2
as thiophenol precursors in organic synthesis. Herein, an N-heterocyclic carbene (NHC)-catalyzed reaction between α-bromoenals and 2,2′-dithiodibenzaldehydes was developed. Through the sustained release strategy, the side reaction can be effectively inhibited, and the chiral thiochromene derivatives can be obtained with good yields and high optical purities. Application studies showed encouraging results
含有二硫键的底物更稳定、气味更小,可用作有机合成中的苯硫酚前体。在此,开发了 α-溴烯醛和 2,2'-二硫代二苯甲醛之间的 N-杂环卡宾 (NHC) 催化反应。通过缓释策略,可以有效抑制副反应,获得收率高、光学纯度高的手性硫色烯衍生物。当探索所需产品在农药开发中的抗菌效用时,应用研究显示出令人鼓舞的结果。