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Souza JPA, Bandeira PT, Bergmann J, Zarbin PHG. Recent advances in the synthesis of insect pheromones: an overview from 2013 to 2022. Nat Prod Rep 2023; 40:866-889. [PMID: 36820746 DOI: 10.1039/d2np00068g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Covering: 2013 to June 2022Pheromones are usually produced by insects in sub-microgram amounts, which prevents the elucidation of their structures by nuclear magnetic resonance (NMR). Instead, a synthetic reference material is needed to confirm the structure of the natural compounds. In addition, the provision of synthetic pheromones enables large-scale field trials for the development of environmentally friendly pest management tools. Because of these potential applications in pest control, insect pheromones are attractive targets for the development of synthetic procedures and the synthesis of these intraspecific chemical messengers has been at the core of numerous research efforts in the field of pheromone chemistry. The present review is a quick reference guide for the syntheses of insect pheromones published from 2013 to mid-2022, listing the synthesized compounds and highlighting current methodologies in organic synthesis, such as carbon-carbon coupling reactions, organo-transition metal chemistry including ring-closing olefin metathesis, asymmetric epoxidations and dihydroxylations, and enzymatic reactions.
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Affiliation(s)
- João P A Souza
- Laboratório de Semioquímicos, Departamento de Química, Universidade Federal do Paraná, UFPR, Caixa Postal 19020, Curitiba 81531-990, PR, Brazil.
| | - Pamela T Bandeira
- Laboratório de Semioquímicos, Departamento de Química, Universidade Federal do Paraná, UFPR, Caixa Postal 19020, Curitiba 81531-990, PR, Brazil. .,Departamento de Química, Universidade Federal de Santa Maria, Avda. Roraima, 1000, Santa Maria, RS, Brazil
| | - Jan Bergmann
- Instituto de Química, Pontificia Universidad Católica de Valparaíso, Avda. Universidad 330, Valparaíso, Chile.
| | - Paulo H G Zarbin
- Laboratório de Semioquímicos, Departamento de Química, Universidade Federal do Paraná, UFPR, Caixa Postal 19020, Curitiba 81531-990, PR, Brazil.
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Le VD, Dang CH, Nguyen CH, Nguyen HU, Nguyen TD. Synthesis of β-Methyl Alcohols: Influence of Alkyl Chain Length on Diastereoselectivity and New Attractants of Rhynchophorus ferrugineus. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:5882-5886. [PMID: 34028273 DOI: 10.1021/acs.jafc.1c01875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The diastereoselectivity of adducts in the addition reaction via the Felkin-Anh model is affected significantly by the steric effect of bulky groups. However, the influence of steric alkyl chain length has not been studied for the diastereoselectivity. In this work, we present a new strategy for the racemic synthesis of β-methyl alcohols to obtain various diastereomer ratios using the Felkin-Anh model. The addition of alkyl Grignard reagents to α-methyl aldehydes afforded diastereomer ratios of threo/erythro ≈ 2:1, while the reduction in structurally related ketones using LiAlH4 afforded ratios of threo/erythro ≈ 1:1. The experimental data showed no effect of alkyl chain length on either side on the stereoselectivity of adducts. All synthesized analogues were evaluated for attractiveness to Rhynchophorus ferrugineus weevils in the field. Five novel derivatives, including two alcohols and three ketones, were found to attract weevils in the field trials. Among them, 3-methyldecan-4-one (5b) and 4-methyldecan-5-ol (11a) were found to be the most attractive to the insects.
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Affiliation(s)
- Van-Dung Le
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
- Institute of Chemical Technology, Vietnam Academy of Science and Technology, 1A, TL29, District 12, Ho Chi Minh City 70000, Vietnam
| | - Chi-Hien Dang
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
- Institute of Chemical Technology, Vietnam Academy of Science and Technology, 1A, TL29, District 12, Ho Chi Minh City 70000, Vietnam
| | - Cong-Hao Nguyen
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
- Institute of Chemical Technology, Vietnam Academy of Science and Technology, 1A, TL29, District 12, Ho Chi Minh City 70000, Vietnam
| | - Hong-Ung Nguyen
- Department of Agriculture and Aquaculture, Tra Vinh University, 126 Nguyen Thien Thanh Street Ward 5, Tra Vinh City 87000, Vietnam
| | - Thanh-Danh Nguyen
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
- Institute of Chemical Technology, Vietnam Academy of Science and Technology, 1A, TL29, District 12, Ho Chi Minh City 70000, Vietnam
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