C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/291.1, 260/4
C07C 317/32 (2006.01) C07C 323/22 (2006.01) C07C 323/47 (2006.01) C07C 323/62 (2006.01) C07D 213/70 (2006.01)
Patent
CA 1326671
ABSTRACT OF THE DISCLOSURE A compound of the general formula: Image wherein R1 is a hydrogen atom, a (C1-C6)alkyl or (C1- C4)alkoxymethyl group; R3 is a hydrogen atom or a methyl group; R4 is a hydrogen atom or a methyl group; R5 is a hydrogen atom or a methyl group, and when R5 is a hydrogen atom, R6 is a hydrogen atom or a (C1-C4)alkoxycarbonyl group, and when R5 is a methyl group, R6 is a hydrogen atom; X is a CH group or a nitrogen atom; Y is a hydrogen atom or a halogen atom; Z is a trifluoromethyl, trifluoromethoxy or 1,1,2,2-tetrafluoroethoxy group; and n is an integer of 0, 1 or 2; and a method of preparing the compounds wherein n is 1 or 2, by oxidizing the corresponding compound wherein n is O. These compounds are intermediates for the preparation of herbicides of general formula: Image wherein R1, R3, R4, R5, R6, X, Y, Z and n are as defined above, and R2 is as defined in the disclosure.
616026
Arai Kenji
Hirata Naonori
Mito Nobuaki
Morita Kouichi
Marks & Clerk
Sumitomo Chemical Co. Ltd.
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