AnE ?Z isomerization of an electrophilic vinyl azide by15N3?. A probe for internal rotation processes in the carbanionic intermediate of nucleophilic vinylic substitution
作者:Jaroslav Jonas、Ctibor Mazal、Zvi Rappoport
DOI:10.1002/poc.610071111
日期:1994.11
The label incorporation and Z → E isomerization in the reaction of 3-azidomethylenedihydro-(3H)-furan-2-one with Na15NN2 in 1:1 water–acetone were measured as a probe for internal clockwise vs anticlockwise rotation in the intermediate carbanion.
测量了3-叠氮基亚甲基二氢-(3H)-呋喃-2-酮与Na 15 NN 2在1:1水-丙酮中的反应中的标记掺入和Z → E异构化,以此作为探针内部顺时针旋转与逆时针旋转的探针。中间碳负离子。
Mazal, Ctibor; Jurka, Zdenek; Jonas, Jaroslav, Collection of Czechoslovak Chemical Communications, 1984, vol. 49, # 11, p. 2509 - 2519
作者:Mazal, Ctibor、Jurka, Zdenek、Jonas, Jaroslav
DOI:——
日期:——
Highly diastereoselective thermal decomposition of 3-(azidomethylene)dihydrofuran-2-one
作者:Ctibor Mazal、Jaroslav Jonas、Zdirad Žák
DOI:10.1016/s0040-4020(02)00184-9
日期:2002.4
Thermaldecomposition of 3-(azidomethylene)dihydrofuran-2-one in various solvents at temperatures above 70°C gave a spiroaziridine derivative with an excellent diastereoselectivity. A mechanism of this new kind of substituted vinylazidedecomposition has been suggested based mainly on the stereochemistry and kinetic data of the reaction. A spiroazirine derivative proposed as a reaction intermediate