The stereoselective synthesis of oxetanes; exploration of a new, Mitsunobu-style procedure for the cyclisation of 1,3-diols
作者:Martin Christlieb、John E. Davies、Jason Eames、Richard Hooley、Stuart Warren
DOI:10.1039/b106851b
日期:2001.11.15
A solution of 2-methyl-3-[1-(phenylsulfanyl)cyclohexyl]propane-1,3-diol 1 in toluene treated with triphenylphosphine, Ziram®
2 and DEAD, gave 3-methyl-2-[1-(phenylsulfanyl)cyclohexyl]oxetane 3 in 85% yield. A mechanistic study has been undertaken, optimal conditions have been found and the range of substrates for which the reaction is useful has been explored. We include the results of an X-ray study which shows that compound 33 (the oxidation product of diol 1) is a sulfone rather than a sulfoxide as previously reported.
一种2-甲基-3-[1-(芳基硫)环己基]丙烷-1,3-二醇1在甲苯中与三苯基膦、Ziram® 2和DEAD反应,产物为3-甲基-2-[1-(芳基硫)环己基]噁烯3,产率为85%。我们进行了机理研究,找到了最佳反应条件,并探索了该反应适用的底物范围。我们还包括了一项X射线研究的结果,该研究显示化合物33(醇1的氧化产物)是磺酮而非先前报告的亚磺酸盐。