[EN] ISOXAZOLINE DERIVATIVES AND THEIR USES IN AGRICULTURE RELATED APPLICATION [FR] DÉRIVÉS D'ISOXAZOLINE ET LEURS UTILISATIONS DANS UNE APPLICATION LIÉE À L'AGRICULTURE
超长链脂肪酸(VLCFA)是除草剂发现的最主要和最有希望的目标之一。为了探索和发现具有更高除草活性和改善作物安全性的新型VLCFAs抑制剂,使用了多种新的3-{[(5,5-二甲基-4-4,5-二氢异恶唑-3-基)磺酰基]甲基}苯并[d]对]异恶唑衍生物进行了合理的设计和合成。温室试验的结果表明,几种化合物以150 g ai / ha的速率对Digitaria sanguinalis,Echinochloa crus-galli和Setaria faberii表现出良好的除草活性。化合物g4和h1对D血红蛋白和C. crus-galli表现出有希望的除草活性剂量为75 g ai / ha,优于商业吡pyr砜和S-异丙甲草胺。此外,化合物H1显示对更高的活性Ë稗,d马唐和小号大狗尾草甚至在37.5 18.75 g的速度比,pyroxasulfone与S-异丙甲草胺成分/公顷。此外,化合物g4和
3-Amidinomethyl- (8), 3-imidazolinylmethyl- (9) and 3-tetrahydropyrimidinylmethyl-1, 2-benzisoxazole (10) were synthesized from 1, 2-benzisoxazole-3-acetonitrile (4) via iminoether (7). 3-Tetrazolylmethyl-1, 2-benzisoxazole (5) and 1, 2-benzisoxazole-3-acetamide oxime (11) were also prepared from 4. 3-Aminoethyl-1, 2-benzisoxazole (25), a tryptamine analogue of 1, 2-benzisoxazole, was synthesized from 3-chloroethyl-1, 2-benzisoxazole (20). The bromination of 1, 2-benzisoxazole-3-acetic acid (1) with one molar equivalent of bromine afforded α-bromo-1, 2-benzisoxazole-3-acetic acid (27), which was decarboxylated to give 3-bromomethyl-1, 2-benzisoxazole (30). The amination of 30 afforded 3-amino-methyl-1, 2-benzisoxazole (31). The bromination of 1 with excess of bromine gave 3-tribromomethyl-1, 2-benzisoxazole (28). N-Substituted 1, 2-benzisoxazolylglycine ester (32) was synthesized from methyl α-bromo-1, 2-benzisoxazole-3-acetate (29) which was obtained by the bromination of methyl 1, 2-benzisoxazole-3-acetate (2).
Es werden neue 1,2-Benzisoxazole und 1,2-Benzisothiazole der Formel
beschrieben, worin X Sauerstoff oder Schwefel Z die Gruppe -CH= zur Bildung der Imidazol-1-yl-Gruppe oder ein Stickstoffheteroatom zur Bildung der 1,2,4-Triazol-1-yl-Gruppe ist. Die neuen Verbindungen sind als Antiepileptika wirksam.
新的 1,2-苯并异噁唑和 1,2-苯并异噻唑,其式如下
其中 X 是氧或硫 Z 是-CH=基团,形成咪唑-1-基团,或一个氮杂原子,形成 1,2,4-三唑-1-基团。这些新化合物作为抗癫痫剂非常有效。