Patra Asit, Pahari Pallab, Ray Sutapa, Mal Dipakranjan
Department of Chemistry, Indian Institute of Technology, Kharagpur, India.
J Org Chem. 2005 Oct 28;70(22):9017-20. doi: 10.1021/jo0512960.
[reaction: see text] Densely substituted styryl sulfone 20 is shown to undergo double annulation with phthalide 21 to give, in one-pot operation and in excellent yield, the benzonaphthopyranone scaffold 22 of gilvocarcins.
[反应：见正文] 研究表明，高度取代的苯乙烯基砜20与邻苯二甲酸酐21发生双环化反应，通过一锅法操作，以优异的产率得到吉尔vocarcins的苯并萘并吡喃酮骨架22。
