Formation of Acetals and Ketals from Carbonyl Compounds: A New and Highly Efficient Method Inspired by Cationic Palladium
作者:Enoch A. Mensah、Shawn D. Green、Jesse West、Tyler Kindoll、Brenda Lazaro-Martinez
DOI:10.1055/s-0039-1690497
日期:2019.9
acetals and ketals is described. This methodology relies on the nature of the palladium catalyst to direct the acetalization/ketalization reaction. This new protocol is mild and proceed with a very low catalyst loading at ambient temperatures. The method has been extended to a wide variety of different carbonyl compounds with various steric encumbrances to form the corresponding acetals and ketals in excellent
描述了一种新的、高效的、简单的方法来掩蔽羰基作为缩醛和缩酮的发展。这种方法依赖于钯催化剂的性质来指导缩醛化/缩酮化反应。这种新协议是温和的,并且在环境温度下以非常低的催化剂负载量进行。该方法已扩展到具有各种空间阻碍的各种不同的羰基化合物,以优异的产率形成相应的缩醛和缩酮。