99498-65-4Relevant articles and documents
Exo/Endo Stereoselectivity in 1,3-Dipolar Cycloaddition of Trifluoroacetonitrile Oxide and -nitrilimine with Bicyclic Olefins
Tanaka, Kiyoshi,Masuda, Hideyuki,Mitsuhashi, Keiryo
, p. 3901 - 3904 (1986)
Trifluoroacetonitrile oxide and N-phenyl-C-(trifluoromethyl)nitrilimine cycloadded with norbornenes, resulting in the exclusive formation of the exo-adducts, while the concomitant formation of the endo-adducts was observed in their cycloadditions with nor
New strategy for the regioselective synthesis of 1-phenyl-3- trifluoromethyl-1H-pyrazoles
Zanatta, Nilo,Amaral, Simone S.,Dos Santos, Josiane M.,Da Silva, Andréia M.P.W.,Schneider, Juliana M.F.M.,Fernandes, Liana Da S.,Bonacorso, Helio G.,Martins, Marcos A.P.
, p. 4076 - 4079 (2013/07/25)
A regioselective synthesis of 3-trifluoromethyl-1-phenyl-1H-pyrazoles (1,3-isomers) as well as their 1,5-isomers (5-trifluoromethyl-1-phenyl-1H- pyrazoles), is described. The 1,3-isomers were obtained from the reaction of 4-alkoxy-1,1,1-trifluoroalk-3-en-2-ones with arylhydrazones followed by deprotective hydrolysis while the 1,5-isomer was obtained by direct cyclocondensation of 4-alkoxy-1,1,1-trifluoroalk-3-en-2-ones with phenylhydrazine. An unequivocal assignment of the 1,3- and 1,5-isomers of the pyrazole products is given.
Synergic effects of ionic liquid and microwave irradiation in promoting trifluoromethylpyrazole synthesis
Buriol, Lilian,Frizzo, Clarissa P.,Prola, Lizie D. T.,Moreira, Dayse N.,Marzari, Mara R. B.,Scapin, Elisandra,Zanatta, Nilo,Bonacorso, Helio G.,Martins, Marcos A. P.
experimental part, p. 1130 - 1135 (2012/06/18)
The synthesis of 5-trifluoromethyl-1-phenyl-1H-pyrazoles from the reactions of 4-alkoxy-1,1,1-trifluoro-3-alken-2-ones [CF3C(O)CH=C(R 1)OR, where R = Me, Et; R1= H, Me, Bu, i-Bu, Ph, 4-MeC6H4, 4-FCsu
