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Efficient synthesis of fused bicyclic ethers and their application in herbicide chemistry
被引:22
作者:
Schaetzer, Juergen
[1
]
Edmunds, Andrew J. F.
[1
]
Gaus, Katharina
[1
]
Rendine, Stefano
[1
]
De Mesmaeker, Alain
[1
]
Rueegg, Willy
[2
]
机构:
[1] Syngenta Crop Protect Muenchwilen AG, CH-4322 Stein, Switzerland
[2] Syngenta Crop Protect AG, CH-4058 Basel, Switzerland
关键词:
Benzoylcyclohexanedione;
Triketone herbicide;
4-Hydroxyphenylpyruvate dioxygenase (HPPD);
Structure-activity relationship (SAR);
P-HYDROXYPHENYLPYRUVATE DIOXYGENASE;
RING-CLOSING METATHESIS;
4-HYDROXYPHENYLPYRUVATE DIOXYGENASE;
CLAISEN REARRANGEMENT;
SELECTIVE HERBICIDE;
OLEFIN METATHESIS;
ISOXAFLUTOLE;
INHIBITORS;
DISCOVERY;
LACTONE;
D O I:
10.1016/j.bmcl.2014.08.043
中图分类号:
R914 [药物化学];
学科分类号:
100701 ;
摘要:
A series of triketones 2 and 3 featuring novel fused bicyclic aryl ethers have been prepared. The syntheses utilized ring-closing olefin metathesis (compounds 2), or oxidative cyclization of allylphenols as the key steps. The herbicidal activity of the targeted triketones 2 and 3 on various grasses and broad-leaved weeds was determined and compared with compound 1. The strength of the novel compounds 2 and 3 is their good herbicidal activity on broad-leaved weeds in post-emergent applications, whereas activity on grasses was inferior compared to 1. In addition, computational methods have been applied to provide a deeper understanding of the SAR found for compounds 2 and 3. (C) 2014 Elsevier Ltd. All rights reserved.
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页码:4643 / 4649
页数:7
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