Application of deuterated THENA for assigning the absolute configuration of chiral secondary alcohols
作者:Jakapun Soponpong、Kulvadee Dolsophon、Chawanee Thongpanchang、Anthony Linden、Tienthong Thongpanchang
DOI:10.1016/j.tetlet.2019.01.013
日期:2019.2
The structure of a constrained bicyclic chiral derivatizing agent (CDA), 1,2,3,4-tetrahydro-1,4-epoxynaphthalene-1-carboxylic acid, THENA 1, was modified by replacing both exo-methylene protons with deuterium atoms. The modified CDA, THENA-d2 2, could be used to assign the absolute configuration of chiral secondary alcohols with good reliability. Compared with THENA, the multiplicity of the methylene
受限的双环手性衍生剂(CDA)1,2,3,4-四氢-1,4-环氧萘-1-羧酸THENA 1的结构是通过用氘原子取代两个外亚甲基质子来进行的。改进的CDA THENA- d 2 2可用于分配具有良好可靠性的手性仲醇的绝对构型。与THENA相比,THENA - d 2衍生物的1 H NMR光谱中的亚甲基质子信号的复杂性更低,因此新的CDA为数据解释提供了更简单的NMR光谱。