On December 27, 1989, Kaku, Koichiro; Wada, Nobuhide; Sugiyama, Kazuhiko; Takeuchi, Akira; Toyokawa, Yasufumi; Miyazawa, Takeshige; Yoshida, Ryo published a patent.COA of Formula: C7H14O3 The title of the patent was Azinylalkanoates as herbicides. And the patent contained the following:
The title compounds [I; R = Q1, Q2, alkenyl, dihydronaphthyl, tetrahydronaphthyl, 1-oxo-1,2,3,4-tetrahydronaphthyl, epoxycycloalkyl, (substituted) indanyl; R1 = H, (substituted) alkyl, alkenyl, alkynyl, Ph, amino, cycloalkyl, nitrophenylthioalkyl, halo, (substituted) benzyl; RR1 = atoms to complete a ring; R2, R4 = H, alkyl; R2R4C = (O-containing) ring; R3 = H, halo, (substituted) alkyl, OH, cyano, thienyl, naphthyl, dihydronaphthyl, Q3; R5, R6 = H, alkyl; R7 = Ph, alkyl; R8 = H, halo, NO2, alkyl, alkoxy, alkylsulfonyl, etc.; A = alkyl, alkoxy, alkylthio, halo, haloalkoxy, amino; B = H, alkyl, alkoxy, haloalkoxy; X = O, S; Z = CH, N; m = 0-2], were prepared Thus, a mixture of Me2PhCCH(OH)CO2Et, 4,6-dimethoxy-2-methylsulfonylpyrimidine, and K2CO3 in DMF was stirred 3 h at 100° to give pyrimidinyloxybutyrate II. II at 40 g/are postemergent gave complete control of barnyard grass. The experimental process involved the reaction of Methyl 2-hydroxy-3,3-dimethylbutanoate(cas: 121129-31-5).COA of Formula: C7H14O3
The Article related to azinyloxyalkanoate preparation herbicide, Heterocyclic Compounds (More Than One Hetero Atom): Triazines and other aspects.COA of Formula: C7H14O3
Referemce:
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