A Mild and Efficient Method for the Preparation of 1,3-Dithianes from Aldehydes and Ketones
作者:Lutz F. Tietze、Berthold Weigand、Christian Wulff
DOI:10.1055/s-2000-6226
日期:——
A mild method for the preparation of 1,3-dithianes from aldehydes and ketones is described. By using lithium perchlorate as Lewis acid and propane-1,3-dithiol even highly acid-labile β-hydroxy aldehydes can be transformed into the corresponding thioacetals. The desired products were obtained in 41-98% yield.
本文介绍了一种从醛和酮制备
1,3-二噻烷的温和方法。通过使用
高氯酸锂作为
路易斯酸和
丙烷-1,3-二
硫醇,即使是高酸性δ-羟基醛也能转化为相应的
硫代
乙醛。所需产品的收率为 41-98%。