Synthesis and field experiments of the female sex pheromone of sweet potato weevil, Cylas formicarius

Le Van Dung, Nguyen Cong Hao, Nguyen Thanh Danh, Ngo Le Ngoc Luong, Nguyen Thuy Duong, Nguyen Thi My Thao, Dang Chi Hien
Author affiliations

Authors

  • Le Van Dung Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Ha Noi, Viet Nam https://orcid.org/0000-0001-7977-6546
  • Nguyen Cong Hao Institute of Chemical Technology, Vietnam Academy of Science and Technology, 1A, TL29 Street, Thanh Loc Ward, District 12th, Ho Chi Minh City, Viet Nam
  • Nguyen Thanh Danh Institute of Chemical Technology, Vietnam Academy of Science and Technology, 1A, TL29 Street, Thanh Loc Ward, District 12th, Ho Chi Minh City, Viet Nam
  • Ngo Le Ngoc Luong Cantho Technical Economic College, No. 9, August Revolution Street, Ninh Kieu District, Can Tho City, Viet Nam
  • Nguyen Thuy Duong TraVinh Medical College, 7 Nguyen Thien Thanh Street, Ward 5, Tra Vinh City 87110, Viet Nam
  • Nguyen Thi My Thao TraVinh University, 126, Nguyen Thien Thanh Street, Ward 5, Tra Vinh City 87110, Viet Nam
  • Dang Chi Hien Institute of Chemical Technology, Vietnam Academy of Science and Technology, 1A, TL29 Street, Thanh Loc Ward, District 12th, Ho Chi Minh City, Viet Nam https://orcid.org/0000-0002-4284-563X

DOI:

https://doi.org/10.15625/2525-2518/16583

Keywords:

(Z)-3-dodecen-1-yl (E)-2-butenoate, Cylas formicarius Fabricius, Pd2(dba)3/KOH/DMF, 1 decyne, 1 bromooctane, 3-butyn-1-ol, (Z)-configuration, the average number of captured individuals, sweet potato weevil

Abstract

Abstract. (Z)-3-dodecen-1-yl (E)-2-butenoate (1) identified as the sex pheromone of sweet potato weevil, Cylas formicarius Fabricius, had been synthesized successfully from 3-butyn-1-ol and 1‑bromooctane as the starting materials. The overall yield via four steps was 60% calculated on 3-butyn-1-ol. The primary step of the scheme was the stereoselective reduction reaction for alkyne cis-hydrogenation without using molecular hydrogen by Pd2(dba)3-catalyzed. And, this reaction was carried out efficiently with KOH/DMF as the hydrogen source. Next, the field trapping experiments were conducted from February to June 2021 at Tien Thuy ward - Chau Thanh district (Ben Tre province) to develop a simple, easy to construct, cost‐effective, and efficient sex pheromone‐baited trap. Main experiments have given positive results such as the relative to sweet-potato foliage, the trap designs, doses of pheromone lure from 0.1 mg to 0.8 mg, and the effect of lure traps with a dose of 0.4 mg. These values can use well to control the dosage of pheromone in field experiments.

Keywords:  (Z)-3-dodecen-1-yl (E)-2-butenoate, Cylas formicarius Fabricius, Pd2(dba)3/KOH/DMF, 1-decyne, 1-bromooctane, 3-butyn-1-ol, (Z)-configuration, the average number of captured individuals, sweet potato weevil.

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Published

05-04-2023

How to Cite

[1]
Le Van Dung, “Synthesis and field experiments of the female sex pheromone of sweet potato weevil, Cylas formicarius”, Vietnam J. Sci. Technol., vol. 61, no. 3, pp. 344–354, Apr. 2023.

Issue

Vol. 61 No. 3 (2023)

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Natural Products

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