Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Honma Toyokuni"'
Autor:
Shigeru Mio, Hiromi Sano, Honma Toyokuni, Soji Sugai, Yuko Kumagawa, Masahiro Shindou, Junko Kitagawa
Publikováno v:
Bioscience, biotechnology, and biochemistry. 60(7)
We synthesized three hydantocidin derivatives and evaluated their herbicidal activity in order to elucidate the role of the spirohydantoin system at the anomeric center of hydantocidin. With application to foliage at 1000 ppm, only α-ureidoamide 14
Publikováno v:
Chemical and Pharmaceutical Bulletin. 48:509-515
4-Sulfenyl-2-carbamoyl-4-isoxazolin-3-ones (4) were designed on the basis of biological isosterism and prepared in four steps. Some of these compounds showed sufficient pre-emergent herbicidal activities against various kinds of weeds. Among the synt
Publikováno v:
Tetrahedron. 51:12563-12572
Synthesis of Spirothiohydantoin derivatives of hydantocidin is described. The key feature of the synthesis was Spirothiohydantoin ring formation through an iminophosphorane intermediate. Spirothiohydantoin derivative 2 maintained comparable herbicida
Autor:
Junko Kitagawa, Masahiro Shindou, Shigeru Mio, Hiromi Sano, Honma Toyokuni, Masae Hamura, Soji Sugai
Publikováno v:
Bioscience, Biotechnology, and Biochemistry. 59:2247-2250
Syntheses of two carbonyl derivatives of hydantocidin 1, a potent, naturally occurring herbicide, and their herbicidal activity are described. Spiroimidazolidinone 2, the descarbonyl compound at C9, was prepared by employing reductive demethylsulfuri
Publikováno v:
Agricultural and Biological Chemistry. 55:1105-1109
Syntheses of 2α-, 3- and 4-deoxy and 3,4-dideoxy derivatives of (+)-hydantocidin were accomplished by a single-electron-transfer reduction or by hydrogenation as the key step. The lack of herbicidal activity exhibited by these derivatives indicates
Publikováno v:
ChemInform. 31
Publikováno v:
Agricultural and Biological Chemistry. 49:3563-3567
Many 1,2-benzisoxazole-3-acetamides were synthesized and their herbicidal activities in the paddy field were studied. Of the compounds tested, N-α,α-dimethylbenzyl-2-bromo-(1,2-benzisoxazol-3-yl)acetamide 10a was the most effective. Details of the
Publikováno v:
ChemInform; Sep2000, Vol. 31 Issue 38, pno-no, 1p
Publikováno v:
In Tetrahedron 1995 51(46):12563-12572