7188-97-8Relevant academic research and scientific papers
When aryldiazonium salts meet vinyl diazoacetates: A cobalt-catalyzed regiospecific synthesis of N-arylpyrazoles
Guo, Haiheng,Zhang, Daming,Zhu, Chenghao,Li, Jian,Xu, Guangyang,Sun, Jiangtao
supporting information, p. 3110 - 3113 (2014/06/23)
A cobalt-catalyzed C-N bond formation between aryl diazonium salts and vinyl diazoacetates has been developed under relatively mild conditions. The N-arylpyrazoles have been prepared in moderate to high yields in a regiospecific way.
New one-pot, efficient, and regioselective method for the synthesis of 3-Trifluoromethyl-1H-1-phenylpyrazoles and alkyl 3-carboxylate analogs
Bonacorso, Helio G.,Correa, Michele S.,Porte, Liliane M.F.,Pittaluga, Everton P.,Zanatta, Nilo,Martins, Marcos A.P.
, p. 5488 - 5491 (2012/11/07)
An efficient and regioselective procedure for the synthesis of a series of alkyl(aryl/heteroaryl) substituted 3-trifluoromethyl-1H-1-phenylpyrazoles and alkyl 3-carboxylate analogs, from the cyclocondensation reactions of 4-alkoxy-1,1,1-trihaloalk-3-en-2-ones [CX3C(O)CR2=CR 1(OMe/OEt), where R1 = H, Me, Ph, 2-Furyl; R2 = H; R1-R2 = -C4H8- and X = F, Cl] and 1-phenylsemicarbazide in an acidified alcoholic medium (R 3OH/H2SO4), where R3 = Me, Et, Pri was successfully applied and is described here in detail. 2012 Elsevier Ltd. All rights reserved.
