235789-27-2Relevant academic research and scientific papers
When hydrazonoyl chlorides meet terminal alkynes: Regioselective copper(I)-catalysed click sequential reactions to 5-substituted pyrazoles
Molteni, Giorgio
, p. 1249 - 1259 (2020/09/18)
In the presence of catalytic amounts of copper(I) salts, terminal alkynes underwent the formation of copper(I) acetylides that enabled their nucleophilic addition onto hydrazonoyl chlorides followed by spontaneous cyclisation of the resulting alkynylhydrazone intermediate. This sequential reaction sequence was exploited as a facile and regioselective synthesis of 1,3,5-substituted pyrazoles. A catalytic cycle has been proposed accounting for the observed results.
Synthesis and herbicidal activity of 1,5-diarylpyrazole derivatives
Kudo, Noriaki,Furuta, Satoru,Taniguchi, Misa,Endo, Takeshi,Sato, Kazuo
, p. 857 - 868 (2007/10/03)
A series of diarylpyrazolecarboxylates and carboxamides were prepared, and their herbicidal activities were investigated. Some of these compounds showed noticeable pre-emergent herbicidal activities against various kinds of weeds. Among the synthesized co
