Amino Alcohols in Organocatalysed Acylation and Deacylation: The Effect of Dialkylamino Substituents on the Rate
作者:Ludger A. Wessjohann、Mingzhao Zhu
DOI:10.1002/adsc.200600491
日期:2008.1.4
enhance the reactivity towards acylation and deacylation, respectively, that is, such amino alcohols can act as transacylation catalysts like DMAP. This effect is dependent on the number of (carbon) spacer atoms, flexibility of the molecule and the presence and position of further heteroatoms. Based on this effect, the site selective acylation and deacylation of desmycosin, a macrocycle antibiotic possessing
在醇和酯中,相邻的二烷基氨基可分别增强对酰化和脱酰的反应性,即,此类氨基醇可充当转酰化催化剂,如DMAP。该效应取决于(碳)间隔原子的数量,分子的柔性以及其他杂原子的存在和位置。基于该效果,描述了具有氨基糖部分的大环抗生素脱麦芽孢素的位点选择性酰化和脱酰作用。