Carbon-13 NMR spectra of 1,3-dioxolanes. II—determination of α, β and γ parameters for 2- and 4-methyl groups in stereoisomeric derivatives by the pattern molecule method
作者:Antonio Espinosa、Miguel A. Gallo、Joaquín Campos、Antonio Entrena、Encarnación Camacho
DOI:10.1002/mrc.1260260204
日期:1988.2
3‐dioxolane ring, the molecular pattern method allows the establishment of α, β and γ parameters for the 2‐Me and 4‐Me substituents. Values of α, β and γ additive parameters for the syn and anti 4‐Me group in 2,2,4‐trisubstituted‐1,3‐dioxolanes are proposed. The average values of the α, β and γ effects for the 2‐Me and 4‐Me groups obtained by the molecular pattern method are consistent with those reported
基于 1,3-二氧戊环的立体化学,分子模式法允许建立 2-Me 和 4-Me 取代基的 α、β 和 γ 参数。提出了 2,2,4-三取代-1,3-二氧戊环中syn 和anti 4-Me 基团的α、β 和γ 加成参数值。通过分子模式方法获得的 2-Me 和 4-Me 组的 α、β 和 γ 效应的平均值与多元线性回归分析报告的结果一致。