A new reaction of 1,2-di- and 1,2,3-trialkyldiaziridines: Ring expansion under the action of diethyl acetylenedicarboxylate in ionic liquids
作者:Yuliya S. Syroeshkina、Vladimir V. Kuznetsov、Vadim V. Kachala、Nina N. Makhova
DOI:10.1002/jhet.204
日期:2009.11
New reaction of diaziridine ring expansion resulting in diethyl 1,2,3,6‐tetrahydropyrimidine‐4,5‐dicarboxylate derivatives was discovered under the action of diethyl acetylenedicarboxylate on 1,2‐di‐ and 1,2,3‐trialkyldiaziridines in ionic liquids. J. Heterocyclic Chem., (2009).
Reaction of 1,2-Dialkyldiaziridines and 1,2,3-Trialkyldiaziridines with Methyl Propiolate in Ionic Liquids and in Organic Solvents
作者:Vera Yu. Petukhova、Leonid L. Fershtat、Vadim V. Kachala、Vladimir V. Kuznetsov、Dmitriy V. Khakimov、Tatyana S. Pivina、Nina N. Makhova
DOI:10.1002/jhet.1079
日期:2013.3
An interaction of 1,2‐dialkyldiaziridine and 1,2,3‐trialkyldiaziridine with methylpropiolate was studied both in organic solvent (MeCN, CH2Cl2, C6H6) and in ionic liquids. Earlier unknown linear structures, in which three molecules of methylpropiolate were suited to one diaziridine molecule (adducts 1 : 3), were obtained in MeCN. The diaziridine ring expansion products 1,2,3,4‐tetrahydropyrimidine
都在有机溶剂(MeCN,CH 2 Cl 2,C 6 H 6)和离子液体中。在MeCN中获得了较早的未知线性结构,其中三个丙酸甲酯分子适合一个二氮丙啶分子(加合物1:3)。二氮丙啶扩环产物1,2,3,4-四氢嘧啶衍生物(加合物1:2),在某些情况下与它们一起在离子液体中获得相同的线性结构。提供了发现的反应机制。反应的区域选择性被认为是由初始二氮丙啶中取代基的结构决定的。这一结论得到了量子化学计算的支持。