Spiropyrazolines from tandem reaction of azides and alkyl vinyl ketones
作者:Chia-Hsi Yang、Lang-Tone Lee、Jun-Hao Yang、Yu Wang、Gene-Hsiang Lee
DOI:10.1016/s0040-4020(01)89566-1
日期:1994.1
Spiropyrazolines are obtained from the the tandemreactions of one molecular of azide and three molecules of alkylvinylketone. There are two types of structures in these products: One of them has an intramolecular hydrogen bond the hydroxyl proton and the acetyl oxygen, while the other has none.
One pot multiple-steps reactions of allyl azide and alkenes carrying electron-withdrawing groups
作者:Chia-Hsi Yang、Huang-Jang Shen
DOI:10.1016/s0040-4039(00)60613-5
日期:1993.6
The reaction of acrylate or acrylonitrile with alkyl or phenyl azide was studied by L'abbe et. al..1 Therein, product (2a) from Michael addition of DELTA2-1,2,3-triazoline 1 to acrylate, or products (5a, 5b and 5c) involving isomerization of triazoline to diazoacetate followed by intermolecular [3+2] cycloaddition of diazoacetate and another molecule of acrylate or acrylonitrile (1-->3-->4-->5) were obtained.