Structure of the condensation products of 3-sulfanylpropionic acid hydrazide with aldehydes, ketones, and aldoses
作者:A. Yu. Ershov、I. V. Lagoda、S. I. Yakimovich、I. V. Zerova、V. V. Pakal’nis、V. V. Shamanin
DOI:10.1134/s107042800910011x
日期:2009.10
aldehydes with 3-sulfanylpropionic acid hydrazide exist in solution as mixtures of linear hydrazone and cyclic 1,3,4-thiadiazepine tautomers. Hydrazones derived from 3-sulfanylpropionic acid hydrazide and aromatic aldehydes and ketones have mostly linear structures of different stereoisomers arising from Z-E isomerism with respect to the double C=N bond and restricted rotation about the C(O)-N bond. Condensation
脂族醛与3-硫烷基丙酸酰肼的缩合产物以线性与环状1,3,4-噻二氮杂互变异构体的混合物形式存在于溶液中。衍生自3-硫烷基丙酸酰肼和芳族醛和酮的,相对于双C = N键和绕C(O)-N键的旋转受限,大多数具有不同的立体异构体的线性结构,这些立体异构体是由ZE异构引起的。3-硫烷基丙酰肼与一系列醛糖的缩合产物在α,β-异构吡喃糖结构,开链醛糖互变异构体和两个非对映异构七元环状1,3,4-异构体之间形成环链环互变异构平衡。噻二氮杂形式。