Patent number: 11533912
Abstract: A method of controlling fungal diseases of crops with cinnamate compounds, the cinnamate compounds having one of the following chemical structures: wherein the cinnamate compounds exhibit strong antifungal activities, have a broad antifungal spectrum against pathogenic fungi of crops, are safe for crops, can avoid the occurrence of phytotoxicity, and can be used for the control of fungal diseases of crops such as powdery mildew, damping-off, rot, gummy stem blight, anthracnose, white rot, northern leaf blight, late blight, gray mold, downy blight, blight, early blight, Fusarium wilt, full rot, Pythium rot, dry rot, ring spot, sheath blight, stalk break and the like, the field efficiencies of which are superior to or comparable to that of the control compound, methyl 3,4-dimethoxy cinnamate.
Type:
Grant
Filed:
July 13, 2020
Date of Patent:
December 27, 2022
Assignee:
INSTITUTE OF PLANT PROTECTION, GANSU ACADEMY OF AGRICULTURAL SCIENCES
Inventors:
Guanfang Hu, Yuling Wang, Yingqian Liu, Haitao Yu, Shujun Niu, Minyan Liu, Feng Zhao
Patent number: 10662138
Abstract: The present invention relates to a compound of formula (I) wherein: R1 is C1-C3alkoxy, C1-C2alkoxy-C1-C3alkoxy, C1-C2fluoroalkoxy, ethyl, n-propyl, n-butyl, cyclopropyl or ethynyl; R2 is hydrogen, ethyl, n-propyl, cyclopropyl, vinyl, ethynyl, C1-C3alkoxy, C1-C3fluoroalkyl, C1-C2fluoroalkoxy, C1-C2alkoxy-C1-C3alkoxy-, or C1fluoroalkoxy-C1-C3alkoxy-; provided that when R1 is ethyl, n-propyl, n-butyl, cyclopropyl or ethynyl, then R2 is hydrogen, ethyl, n-propyl, cyclopropyl, vinyl or ethynyl; and Y is O, S, S(O), S(O)2, N(C1-C2alkyl), N(C1-C2alkoxy), C(O), CR8R9 or —CR10R11CR12R13—; and G, R3, R4, R5 and R6 are as defined herein; wherein the compound of formula (I) is optionally present as an agrochemically acceptable salt thereof. These compounds are suitable for use as herbicides.
Type:
Grant
Filed:
June 18, 2015
Date of Patent:
May 26, 2020
Assignee:
Syngenta Participations AG
Inventors:
James Nicholas Scutt, Nigel James Willets