Synthesis of 2,3-Disubstituted Benzo[<i>b</i>]selenophenes via Electrophilic Cyclization
作者:Tanay Kesharwani、Shilpa A. Worlikar、Richard C. Larock
DOI:10.1021/jo0524268
日期:2006.3.1
2,3-Disubstituted benzo[b]selenophenes have been prepared by the electrophilic cyclization of various 1-(1-alkynyl)-2-(methylseleno)arenes by Br2, NBS, I2, ICl, PhSeCl, PhSeBr, and Hg(OAc)2. This method tolerates a wide variety of functional groups, including alcohol, ester, nitrile, nitro, and silyl groups, and proceeds under exceptionally mild reaction conditions.
通过Br 2,NBS,I 2,ICl,PhSeCl,PhSeBr和Hg对各种1-(1-炔基)-2-(甲基硒代)芳烃进行亲电环化反应,制备了2,3-二取代的苯并[ b ]硒代苯(OAc)2。该方法可耐受多种官能团,包括醇,酯,腈,硝基和甲硅烷基,并在异常温和的反应条件下进行。