121561-99-7Relevant academic research and scientific papers
A Novel Synthesis of 5-Chloro-3-methoxycarbonyl-1-arylpyrazoles from Arylazomethylenetriphenylphosphoranes
Baldoli, C.,Lattuada, L.,Licandro, E.,Maiorana, S.,Papagni, A.
, p. 241 - 244 (2007/10/02)
The reaction of arylazomethoxycarbonylmethylenetriphenylphosphoranes 1 with chloroform and sodium hydroxide in the presence of benzyltriethylammonium chloride (TEBA) as phase transfer catalyst directly affords 5-chloro-3-methoxycarbonyl-1-arylpyrazoles 3.
