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Lin Z, Huang B, Ouyang L, Zheng L. Synthesis of Cyclic Fragrances via Transformations of Alkenes, Alkynes and Enynes: Strategies and Recent Progress. Molecules 2022; 27:3576. [PMID: 35684511 PMCID: PMC9182196 DOI: 10.3390/molecules27113576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/17/2022] [Accepted: 05/19/2022] [Indexed: 12/04/2022] Open
Abstract
With increasing demand for customized commodities and the greater insight and understanding of olfaction, the synthesis of fragrances with diverse structures and odor characters has become a core task. Recent progress in organic synthesis and catalysis enables the rapid construction of carbocycles and heterocycles from readily available unsaturated molecular building blocks, with increased selectivity, atom economy, sustainability and product diversity. In this review, synthetic methods for creating cyclic fragrances, including both natural and synthetic ones, will be discussed, with a focus on the key transformations of alkenes, alkynes, dienes and enynes. Several strategies will be discussed, including cycloaddition, catalytic cyclization, ring-closing metathesis, intramolecular addition, and rearrangement reactions. Representative examples and the featured olfactory investigations will be highlighted, along with some perspectives on future developments in this area.
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Affiliation(s)
| | | | | | - Liyao Zheng
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China; (Z.L.); (B.H.); (L.O.)
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Wang Z, Wu J, Lamine W, Li B, Sotiropoulos JM, Chrostowska A, Miqueu K, Liu SY. C-Boron Enolates Enable Palladium Catalyzed Carboboration of Internal 1,3-Enynes. Angew Chem Int Ed Engl 2021; 60:21231-21236. [PMID: 34245074 DOI: 10.1002/anie.202108534] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Indexed: 12/17/2022]
Abstract
A new family of carbon-bound boron enolates, generated by a kinetically controlled halogen exchange between chlorocatecholborane and silylketene acetals, is described. These C-boron enolates are demonstrated to activate 1,3-enyne substrates in the presence of a Pd0 /Senphos ligand complex, resulting in the first examples of a carboboration reaction of an alkyne with enolate-equivalent nucleophiles. Highly substituted dienyl boron building blocks are produced in excellent site-, regio-, and diastereoselectivity by the described catalytic cis-carboboration reaction.
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Affiliation(s)
- Ziyong Wang
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA
| | - Jason Wu
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA
| | - Walid Lamine
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, 64053, Pau cedex 09, France
| | - Bo Li
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA
| | - Jean-Marc Sotiropoulos
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, 64053, Pau cedex 09, France
| | - Anna Chrostowska
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, 64053, Pau cedex 09, France
| | - Karinne Miqueu
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, 64053, Pau cedex 09, France
| | - Shih-Yuan Liu
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA.,Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, 64053, Pau cedex 09, France
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Wang Z, Wu J, Lamine W, Li B, Sotiropoulos J, Chrostowska A, Miqueu K, Liu S. C−Boron Enolates Enable Palladium Catalyzed Carboboration of Internal 1,3‐Enynes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ziyong Wang
- Department of Chemistry Boston College Chestnut Hill MA 02467 USA
| | - Jason Wu
- Department of Chemistry Boston College Chestnut Hill MA 02467 USA
| | - Walid Lamine
- Université de Pau et des Pays de l'Adour, E2S UPPA CNRS, IPREM, UMR 5254 64053 Pau cedex 09 France
| | - Bo Li
- Department of Chemistry Boston College Chestnut Hill MA 02467 USA
| | - Jean‐Marc Sotiropoulos
- Université de Pau et des Pays de l'Adour, E2S UPPA CNRS, IPREM, UMR 5254 64053 Pau cedex 09 France
| | - Anna Chrostowska
- Université de Pau et des Pays de l'Adour, E2S UPPA CNRS, IPREM, UMR 5254 64053 Pau cedex 09 France
| | - Karinne Miqueu
- Université de Pau et des Pays de l'Adour, E2S UPPA CNRS, IPREM, UMR 5254 64053 Pau cedex 09 France
| | - Shih‐Yuan Liu
- Department of Chemistry Boston College Chestnut Hill MA 02467 USA
- Université de Pau et des Pays de l'Adour, E2S UPPA CNRS, IPREM, UMR 5254 64053 Pau cedex 09 France
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Miyazawa Y, Kawaguchi K, Katsuta R, Nukada T, Ishigami K. Studies on analogs of DAMASCENOLIDETM: Part 4. Synthesis and odor evaluation of sulfur-containing analogs of DAMASCENOLIDETM. Biosci Biotechnol Biochem 2021; 85:1357-1363. [PMID: 33686427 DOI: 10.1093/bbb/zbab032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 02/26/2021] [Indexed: 11/13/2022]
Abstract
DAMASCENOLIDETM [1, 4-(4-methylpent-3-en-1-yl)furan-2(5H)-one], which is isolated from damask rose, is a useful aroma compound with a citrus-like odor. We have previously reported on the synthesis and odor properties of 34 analogs of 1 as part of our new aroma compound development project. In order to develop better aroma compounds and to gather more information on structure-odor relationships, 6 novel sulfur-containing analogs of 1 were synthesized. Odor evaluation revealed that their odors differed significantly from those of the corresponding sulfur-free compounds. The introduction of a sulfur atom does not necessarily result in a sulfur-like odor. In particular, the 2(5H)-thiophenone analogs gave waxy, oily, and lactone-like odors that are uncharacteristic of sulfur-containing compounds. In many synthesized analogs, the introduction of a sulfur atom led to an increase in odor intensity, as expected.
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Affiliation(s)
- Yamato Miyazawa
- R&D Center, T. Hasegawa Co., Ltd., Kawasaki-shi, Kanagawa, Japan.,Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
| | - Kenji Kawaguchi
- R&D Center, T. Hasegawa Co., Ltd., Kawasaki-shi, Kanagawa, Japan
| | - Ryo Katsuta
- Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
| | - Tomoo Nukada
- Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
| | - Ken Ishigami
- Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
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Miyazawa Y, Kawaguchi K, Katsuta R, Nukada T, Ishigami K. Studies on analogs of DAMASCENOLIDETM: Part 3. Synthesis and odor evaluation of dimethylated, cyclopropanated, and other analogs of DAMASCENOLIDETM. Biosci Biotechnol Biochem 2021; 85:756-764. [PMID: 33580691 DOI: 10.1093/bbb/zbaa103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 12/02/2020] [Indexed: 11/13/2022]
Abstract
DAMASCENOLIDETM [1, 4-(4-methylpent-3-en-1-yl)furan-2(5H)-one], which has a citrus-like odor, is an important aroma component of roses. We have previously reported on the synthesis and odor evaluation of 24 analogs of 1 as part of our new aroma compound developing project. To accumulate more information on structure-odor relationships, 10 more promising analogs such as dimethylated and cyclopropanated analogs were synthesized and subjected to odor evaluation. As a result, it was found that dimethylation of the furanone ring affected the odor. It was also found that cyclopropanation of 1 affected the odor, whereas cyclopropanation of the double bond isomer of 1 did not significantly affect the odor. The effects on the odor caused by ring size expansion and replacement of the side chain were also investigated.
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Affiliation(s)
- Yamato Miyazawa
- R&D Center, T. Hasegawa Co., Ltd., Kawasaki-shi, Kanagawa, Japan.,Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
| | - Kenji Kawaguchi
- R&D Center, T. Hasegawa Co., Ltd., Kawasaki-shi, Kanagawa, Japan
| | - Ryo Katsuta
- Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
| | - Tomoo Nukada
- Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
| | - Ken Ishigami
- Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
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Miyazawa Y, Kawaguchi K, Katsuta R, Nukada T, Ishigami K. Analog synthesis of DAMASCENOLIDE TM, an important aroma component of roses, and their odor properties. Biosci Biotechnol Biochem 2020; 84:1560-1569. [PMID: 32303150 DOI: 10.1080/09168451.2020.1753498] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
DAMASCENOLIDETM [1, 4-(4-methylpent-3-en-1-yl)furan-2(5H)-one], which has a citrus-like odor, is an important aroma component of roses. We have previously reported on the synthesis and odor evaluation of double-bond isomers of 1 and concluded that the position and the geometric isomerism of the double-bond had a significant effect on the odor. For the purpose of deepening knowledge about structure-odor relationships, we synthesized 13 analogs of compound 1 and evaluated their odors. As a result, it was found that the presence of two double-bonds and branched methyl group at the terminal position in the side chain was essential in order to have a citrus-like odor. Substitution of the side chain with appropriate length at the appropriate 4-position of the 2(5H)-furanone ring was also an important factor in determining the quality of the odor.
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Affiliation(s)
- Yamato Miyazawa
- R&D Center, T. Hasegawa Co., Ltd ., Kanagawa, Japan.,Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture , Tokyo, Japan
| | | | - Ryo Katsuta
- Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture , Tokyo, Japan
| | - Tomoo Nukada
- Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture , Tokyo, Japan
| | - Ken Ishigami
- Department of Chemistry for Life Sciences and Agriculture, Tokyo University of Agriculture , Tokyo, Japan
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