808798-11-0Relevant academic research and scientific papers
Synthesis of Bicyclo[4.1.0]tetrahydropyridazines by a Sequential [4 + 2] and [1 + 2] Annulation Reaction of Azoalkenes and Crotonate-Derived Sulfur Ylides
Yin, Wenhao,Fang, Ling,Wang, Zhiyong,Gao, Fang,Li, Zhefeng,Wang, Zhiyong
supporting information, p. 7361 - 7364 (2019/10/02)
The base-induced unprecedented tandem [4 + 2] and [1 + 2] annulation reaction of in situ formed 1,2-diaza-1,3-dienes and crotonate-derived sulfur ylides is reported. This protocol provides a novel and practical method for the synthesis of cyclopropane-fused tetrahydropyridazines with a quaternary carbon center in synthetically useful yield. In this tandem reaction, three new bonds were formed in one pot, and the crotonate-derived sulfur ylide serves as a C3 synthon.
Cycloaddition of in situ generated azoalkenes with C,N-cyclic azomethine imines: Efficient synthesis of tetrazepine derivatives
Hu, Xiao-Qiang,Chen, Jia-Rong,Gao, Shuang,Feng, Bin,Lu, Liang-Qiu,Xiao, Wen-Jing
supporting information, p. 7905 - 7907 (2013/09/02)
An unprecedented [4+3] cycloaddition of in situ generated azoalkenes with C,N-cyclic azomethine imines has been developed without the use of any catalyst, providing an efficient and mild approach to synthesise highly functionalized 1,2,4,5-tetrazepine der
