Structure and total synthesis of benzylthiocrellidone, a novel dimedone-based vinyl sulfide from the sponge Crella spinulata
作者:Hon Wai Lam、Paul A. Cooke、Gerald Pattenden、Wickramasinghe M. Bandaranayake、Wasantha A. Wickramasinghe
DOI:10.1039/a901323g
日期:——
A concise synthesis of the yellow pigment benzylthiocrellidone 1, based on a Michael addition–elimination of dimedone 2 to the ketene thioacetal 7 derived from dimedone, benzyl bromide and carbon disulfide, is described. The synthetic pigment had an X-ray crystal structure identical to that measured for the natural product.
基于Michael加成-消除反应,以二甲基双环己酮2与由二甲基双环己酮、苄基溴和二硫化碳衍生的酮烯硫缩醛7反应,合成了黄色颜料苄基硫杂环丁酮1的简明合成方法。合成颜料的X射线晶体结构与天然产物测得的结构完全相同。