Synthesis of possible<i>o</i>-thioquinone methide precursors
作者:Kirill A Kolmakov、A Jerry Kresge
DOI:10.1139/v07-142
日期:2008.2.1
conditions the reaction products can be isolated in excellent yields and with 100% purity, so the troublesome purification of temperature sensitive and volatile 2H-benzo[b]thietederivatives becomes unnecessary. The sulfur-containing compounds so obtained are efficient o-thioquinone methide precursors and possible synthones for heterocyclic chemistry.Key words: 2H-benzo[b]thietes, flash vacuum pyrolysis
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 organicsynthesis. 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 highopticalpurities. Application studies showed encouraging results