Catalytic Enantioselective tert-Aminocyclization by Asymmetric Binary Acid Catalysis (ABC): Stereospecific 1,5-Hydrogen Transfer
作者:Liujuan Chen、Long Zhang、Jian Lv、Jin-Pei Cheng、Sanzhong Luo
DOI:10.1002/chem.201201532
日期:2012.7.16
Selective H transfer by ABC: A new asymmetric binary acid catalyst was developed to promote 1,5‐H transfer specifically and stereoselectively in tert‐aminocyclization reactions with excellent activity, high enantioselectivity, and broad substrate scope. The H atom (in red) was proven to transfer through a stereospecific suprafacial pathway (see scheme).
通过ABC进行的选择性H转移:开发了一种新型的不对称二元酸催化剂,可在叔氨基环化反应中特异性和立体选择性地促进1,5-H转移,具有出色的活性,高对映选择性和广泛的底物范围。事实证明,H原子(红色)通过立体特异性表面途径转移(参见方案)。