作者:A. T. Ainsworth、G. W. Kirby
DOI:10.1039/j39680001483
日期:——
N.m.r. spectroscopy has been used to determine the stereochemistry of various β-carboxy- and β-hydroxymethylmuconic derivatives. Long-range spin coupling between the olefinic protons is discussed. Isomerisation of the αβ- and γδ-double bonds has been shown to involve participation of the δ- and α-carboxy-groups, respectively. Treatment of both β-carboxy-cis-cis- and cis-trans-muconic acid with hot
Nmr光谱已用于确定各种β-羧基和β-羟甲基粘康酸衍生物的立体化学。讨论了烯烃质子之间的远距离自旋耦合。的αβ-和异构化γ δ-双键已被证明分别涉及δ-和α羧基基团的参与。两个β羧基的治疗顺-顺-和顺式-反式-muconic酸与热的含水碱得到,相反与先前的报告中,反式-glutaconic酸而不是β羧基-反式-反式-muconic酸。描述了一种方便的制备δ-氘代的β-羧基粘康糖衍生物的方法。