C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 257/04 (2006.01) C07C 257/02 (2006.01)
Patent
CA 2539338
A process for the production of N-aryl-2,2,2-trifluoro- acetimidoyl chloride represented by the general formula (2) by reacting a 2,2,2-trifluoro-N- arylacetamide represented by the general formula (1) with both at least one member selected from the group consisting of phosphorus oxychloride and diphenyl- phosphoric acid chloride and a tertiary amine in an organic solvent; and a process for the production of 1-aryl-5 -(trifluoromethyl)-1H-tetrazoles represented by the general formula (4) by reacting an N-aryl-2,2,2- trifluoroacetimidoyl chloride represented by the general formula (2) with an azide in an aromatic hydrocarbon solvent in the presence of an amine salt.
L'invention concerne un procédé pour produire du chlorure de N-aryl-2,2,2-trifluoroacétimidoyle de formule (2) comprenant la mise en réaction d'un 2,2,2-trifluoro-N-arylacétamide de formule (1) avec au moins un élément sélectionné du groupe constitué d'oxychlorure de phosphore et de chlorure d'acide phosphorique organique et d'une amine tertiaire dans un solvant organique. L'invention concerne également un procédé de production de 1-aryl-5 (trifluorométhyle)-1H-tétrazole de formule (4) comprenant la mise en réaction de chlorure N-aryle-2,2,2-trofluoroacétimidoyle de formule (2) avec un azide dans un solvant d'hydrocarbure aromatique en présence d'un sel d'amine.
Hagiya Kazutake
Koguro Kiyoto
Mitsui Sunao
Sato Yasuhiro
Marks & Clerk
Toyo Boseki Kabushiki Kaisha
Toyo Kasei Kogyo Company Limited
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