Synthesis of Enantiopure 1,4-Dioxanes, Morpholines, and Piperazines from the Reaction of Chiral 1,2-Diols, Amino Alcohols, and Diamines with Vinyl Selenones
作者:Luana Bagnoli、Catalina Scarponi、Maria Giovanna Rossi、Lorenzo Testaferri、Marcello Tiecco
DOI:10.1002/chem.201002593
日期:2011.1.17
selenones with enantiopure 1,2‐diols, N‐protected‐1,2‐aminoalcohols, and diamines gave substituted enantiopure 1,4‐dioxanes, morpholines, and piperazines, respectively, in good to excellent yields. The same procedure was extended to the synthesis of thiomorpholine, benzodiazepine, and benzoxazepine. The reactions proceeded in one pot, in the presence of base, through a simple and novel application of the
容易获得的乙烯基硒酮与对映纯1,2-二醇,N-保护的1,2-氨基醇和二胺的反应分别得到了对映体纯的1,4-二恶烷,吗啉和哌嗪,收率良好至极佳。相同的程序扩展到了硫吗啉,苯并二氮杂卓和苯并x氮平的合成。通过简单,新颖地应用迈克尔引发的闭环(MIRC)反应,在碱存在的情况下,该反应在一个罐中进行。形成的杂环构成在许多药物化合物中观察到的骨架。