A Convenient Approach to<i>C</i><sub>2</sub>-Chiral 1,1,4,4-Tetrasubstituted Butanetetraols: Direct Alkylation or Arylation of Enantiomerically Pure Diethyl Tartrates
作者:Zixing Shan、Xiaoyun Hu、Yan Zhou、Xitian Peng、Zhen Li
DOI:10.1002/hlca.200900274
日期:2010.3
C2‐Chiral 1,1,4,4‐tetraaryl‐ or 1,1,4,4‐tetraalkyl‐substituted butanetetraols have been conveniently synthesized via arylation or alkylation of unprotected diethyl (2R,3R)‐ and (2S,3S)‐tartrates with Grignard reagent. The chiral 1,1,4,4‐tetrasubstituted butanetetraols were characterized by IR, 1H‐ and 13C‐NMR, as well as LC/MS.
c ^ 2 -手性1,1,4,4- tetraaryl-或1,1,4,4-四烷基取代butanetetraols已经方便地合成通过芳基化或未被保护的二(2-烷基化- [R,3 - [R )-和(2小号,3 S)-用格氏试剂酒石酸氢盐。手性1,1,4,4-四取代丁四醇的特征在于IR,1 H-和13 C-NMR以及LC / MS。