Asymmetric acyl-transfer promoted by readily assembled chiral 4-N,N-dialkylaminopyridine derivatives
作者:Ciarán Ó. Dálaigh、Stephen J. Hynes、John E. O'Brien、Thomas McCabe、Declan J. Maher、Graeme W. Watson、Stephen J. Connon
DOI:10.1039/b604632k
日期:——
The development of a new class of chiral 4-N,N-dialkylaminopyridine acyl-transfer catalysts capable of exploiting both van der Waals (π) and H-bonding interactions to allow remote chiral information to stereochemically control the kinetic resolution of sec-alcohols with moderate to excellent selectivity (s = 6–30). Catalysts derived from (S)-α,α-diarylprolinol are considerably superior to analogues devoid of a tertiary hydroxyl moiety and possess high activity and selectivity across a broad range of substrates.
开发了一类新型 4-N,N-二烷基氨基吡啶手性酰基转移催化剂,该催化剂能够利用范德华(π)和氢键相互作用,通过远程手性信息立体化学控制仲醇的动力学解析,并具有中等至卓越的选择性(s = 6-30)。由 (S)-α,α-二芳基脯氨醇衍生的催化剂大大优于没有叔羟基的类似物,并且在广泛的底物中具有高活性和高选择性。