Volume 33, Issue 7 pp. 749-755
Full Paper

Design, Synthesis and Herbicidal Activities of Tetrahydroisoindoline-1,3-dione Derivatives Containing Alkoxycarbonyl Substituted 2-Benzoxazolinone

Hao Zhang

Hao Zhang

Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China

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Kechang Liu

Kechang Liu

Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China

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Ruiquan Liu

Ruiquan Liu

Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China

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Qibo Li

Qibo Li

Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China

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Yongqiang Li

Yongqiang Li

State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China

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Qingmin Wang

Corresponding Author

Qingmin Wang

State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China

Qingmin Wang, State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China

Shangzhong Liu, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China, Tel.: 0086-010-62731070; Fax: 0086-010-62731070

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Shangzhong Liu

Corresponding Author

Shangzhong Liu

Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China

Qingmin Wang, State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China

Shangzhong Liu, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China, Tel.: 0086-010-62731070; Fax: 0086-010-62731070

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First published: 30 March 2015
Citations: 4

Abstract

Several different alkoxycarbonyl-substituted 2-benzoxazolinone moieties have been incorporated into a tetrahydroisoindoline-1,3-dione scaffold to provide 25 compounds (1a1u and 2a2d). The structures of these compounds were confirmed by 1H and 13C NMR, HRMS and X-ray single-crystal diffraction. Some of these compounds (1g, 1h, 1j, 1k) exhibited excellent herbicidal activities against Abutilon theophrasti, Amaranthus retroflexus and Echinochloa crus-galli at a rate of 375 g AI·ha−1. Among them, compounds 1h and 1j displayed the best post-emergence herbicidal effect against Abutilon theophrasti with ED50 values of 1.8 and 5.3 g AI·ha−1, respectively, which are superior to that of the commercial acifluorfen (44.3 g AI·ha−1). Field trials demonstrated that compound 1h exhibited similar herbicidal activity to a high concentration atrazine, and found to be safer for maize than atrazine. The results of this study therefore show that compound 1h could potentially be used as a post-emergence herbicide for maize fields.

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