Nickel-Catalyzed One-Pot Carbonylative Synthesis of 2-Mono- and 2,3-Disubstituted Thiochromenones from 2-Bromobenzenesulfonyl Chlorides and Alkynes
作者:Wei Wang、Zhi-Peng Bao、Xinxin Qi、Xiao-Feng Wu
DOI:10.1021/acs.orglett.1c02442
日期:2021.8.20
A nickel-catalyzed one-pot carbonylation reaction of 2-bromobenzenesulfonyl chlorides with alkynes for the synthesis of thiochromenones has been established. Both terminal and internal alkynes were suitable substrates in this carbonylative transformation, and a broad range of 2-mono- and 2,3-disubstituted thiochromenone products were obtained in moderate to good yields with quite high functional group
Palladium-Catalyzed Carbonylative Four-Component Synthesis of Thiochromenones: The Advantages of a Reagent Capsule
作者:Chaoren Shen、Anke Spannenberg、Xiao-Feng Wu
DOI:10.1002/anie.201600953
日期:2016.4.11
reactions, especially those involving four or even more reagents, have been a long‐standing challenge because of the issues associated with balancing reactivity, selectivity, and compatibility. Herein, we demonstrate how the use of a reagent capsule provides straightforward access to synthetically valuable thiochromenone derivatives by a palladium‐catalyzed carbonylative four‐component reaction. To the
Synthesis of 3-Iodo Derivatives of Flavones, Thioflavones and Thiochromones
作者:Fang Jie Zhang、Yu Lin Li
DOI:10.1055/s-1993-25904
日期:——
The title compounds, 2-aryl-3-iodo-4H-1-benzopyrans and 2-alkyl-or 2-aryl-3-iodo-4H-1-benzothiopyrans, were prepared by reaction of the corresponding heterocyclic derivatives with the iodine-cerium(IV) ammonium nitrate system under mild conditions. The scope and proposed mechanism of the reaction were also demonstrated.
Study on the Synthesis of Some New Biflavonoids. VIII. A New Synthesis of C<sub>3</sub>-Linked Biflavones, Bithioflavones and Bithiochromones
作者:Yu Lin Li、Fang Jie Zhang
DOI:10.1080/00397919308018584
日期:1993.4
Abstract Reactions of the 3—iodo derivatives of flavones, thioflavones and thiochromones with finely divided copper at 200–210°C gave the title compounds respectively. Thus a new way to these compounds was provided.