作者:Meng-Yang Chang、Yu-Ping Huang、Tein-Wei Lee、Yeh-Long Chen
DOI:10.1016/j.tet.2012.03.007
日期:2012.4
dibenzosuberenone (2) with NBS and chloramines-T in MeCN at reflux, hydrogenolysis of azridinyl ketone, Grignard methylation of amino ketone, BF3·OEt2-promoted cyclization of amino alcohol, and desulfonylation with Mg and Et3N in MeOH. Anthracene skeleton 9 is also synthesized via an intramolecular rearrangement of pinacol to pinacolone.
描述了一种简单的五步合成路线,以总产率的28%从二苯并顺丁烯二酮(2)开始,向二唑西平(1)合成。简便的路线是通过在回流中在MeCN中用NBS和氯胺-T进行二苯并双氢肾上腺素(2)的叠氮反应,氮杂环丁酮的氢解,氨基酮的格利雅甲基化,BF 3 ·OEt 2促进的氨基醇环化以及用Mg和Et 3 N的MeOH溶液。蒽骨架9也通过频哪醇到匹那康的分子内重排而合成。