Chemistry of Diazafulvenium Methides in the Synthesis of Functionalized Pyrazoles
收藏NIAID Data Ecosystem2026-03-06 收录
下载链接：
https://figshare.com/articles/dataset/Chemistry_of_Diazafulvenium_Methides_in_the_Synthesis_of_Functionalized_Pyrazoles/3002881
下载链接
链接失效反馈官方服务：
资源简介：
The chemistry of diazafulvenium methides generated by the thermal extrusion of sulfur dioxide from
2,2-dioxo-1H,3H-pyrazolo[1,5-c] [1,3]thiazoles is described. The diazafulvenium methides unsubstituted
at C-7 participate in [8π + 2π] cycloadditions giving pyrazolo-annulated heterocycles resulting from the
addition across the 1,7-position. 1-Methyl-diazafulvenium methides and 7,7-dimethyl-diazafulvenium
methides undergo intramolecular sigmatropic [1,8]H shifts giving vinyl-1H-pyrazoles.
创建时间：
2016-02-29
