3'-(substituted phenyl)-spiro(isobenzofuran-1(3H),5'(4'H)-isoxazol)-3-ones, process for their preparation, their use as herbicides and plant growth regulants and their application to the preparation of isoxazole derivatives
申请人:MONSANTO COMPANY
公开号:EP0013111A2
公开(公告)日:1980-07-09
3'-(Substituted phenyl)-spiro (isobenzofuran-1(3H, 5'(4'H)-isoxazol -3-ones having the formula
wherein X and Y are independently selected from the group consisting of hydrogen, halogen, lower alkyl, lower alkoxy, halo-lower-alkyl, phenoxy, phenyl and cyano, their method of preparation as well as to their use as herbicides and plant growth regulants, especially for the regulation of soybeans.
The use of the novel compounds as intermediates in the preparation of isoxazol -5-yl benzoates having the formula
wherein R is hydrogen or R'CH2- and R' is hydrogen or alkyl having up to four carbon atoms, inclusive, which are effective as herbicides and plant growth regulants.
3'-(取代苯基)-螺(异苯并呋喃-1(3H,5'(4'H)-异噁唑-3-酮,其式中X和Y独立地选自氢、卤素、低级烷基、低级烷氧基、卤代低级烷基、苯氧基、苯基和氰基组成的组,它们的制备方法以及它们作为除草剂和植物生长调节剂的用途,特别是用于大豆的调节。 新型化合物作为中间体用于制备异噁唑-5-基苯甲酸酯,其式中R是氢或R'CH2-,R'是氢或具有多达四个碳原子的烷基(含),它们作为除草剂和植物生长调节剂是有效的。