Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan.
J Org Chem. 2013 Apr 5;78(7):3384-90. doi: 10.1021/jo4000256. Epub 2013 Feb 26.
A mild and efficient method for formation of methylene acetals from 1,2- and 1,3-diols using methoxymethylphenylsulfide, 1,3-dibromo-5,5-dimethylhydantoin (DBDMH), and dibutylhydroxytoluene (BHT) is described. The use of BHT in this process suppresses side reactions and enables high-yielding formation of methylene acetals of various diols, including carbohydrate-type substrates.
本文描述了使用甲氧基甲基苯硫醚、1,3-二溴-5,5-二甲基海因(DBDMH)和二叔丁基对甲酚(BHT)从 1,2-和 1,3-二醇形成亚甲基缩醛的温和高效方法。在该过程中使用 BHT 可以抑制副反应,并能够高产率地形成各种二醇的亚甲基缩醛,包括碳水化合物型底物。