Domino Synthesis of 2-Substituted Benzothiazoles by Base-Promoted Intramolecular C–S Bond Formation
作者:Yogendra Kumar、Hiriyakkanavar Ila
DOI:10.1021/acs.orglett.9b02855
日期:2019.10.4
developed, involving base-promoted one-pot addition of active methylene compounds to o-iodoarylisothioacyanates and subsequent intramolecular C-S bond formation of the resulting thioamidate anion. The reaction proceeds at room temperature within 1-3 h, affording diversely substituted benzothiazoles in high yields. A possible radical intermediate pathway, via an SRN1 mechanism, has been proposed for intramolecular