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Abstract
Fragmentation reactions that generate alkynes in conjunction with C–C bond cleavage require special considerations but can produce high-value alkyne building blocks for organic synthesis.
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Affiliation(s)
- Jingyue Yang
- Hebei Key Laboratory of Applied Chemistry
- School of Environmental and Chemical Engineering
- Yanshan University
- Qinhuangdao 066004
- China
| | - Tung T. Hoang
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee
- USA
| | - Gregory B. Dudley
- C. Eugene Bennett Department of Chemistry
- West Virginia University
- Morgantown
- USA
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2
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Deng J, Wu J, Tian H, Bao J, Shi Y, Tian W, Gui J. Alkynes From Furans: A General Fragmentation Method Applied to the Synthesis of the Proposed Structure of Aglatomin B. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712365] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jiachen Deng
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Jingjing Wu
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Hailong Tian
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Jiajing Bao
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Yong Shi
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Weisheng Tian
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Jinghan Gui
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
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3
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Deng J, Wu J, Tian H, Bao J, Shi Y, Tian W, Gui J. Alkynes From Furans: A General Fragmentation Method Applied to the Synthesis of the Proposed Structure of Aglatomin B. Angew Chem Int Ed Engl 2018; 57:3617-3621. [PMID: 29388298 DOI: 10.1002/anie.201712365] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 01/29/2018] [Indexed: 11/08/2022]
Abstract
Furans are versatile synthons in organic chemistry. Described is a general method for transforming furans into alkynes by dual C-C double-bond cleavage. The reaction is proposed to proceed by sequential [4+2] cycloaddition between furan and singlet oxygen and a formal retro-(3+2) fragmentation of the endoperoxide intermediate. A wide array of furans, including those derived from sapogenins, are amenable to this reaction, thus providing the corresponding alkynoic acids in up to 88 % yields. The synthetic utility was demonstrated by a seven-step synthesis of the proposed structure of a pregnane natural product, aglatomin B, from a known intermediate.
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Affiliation(s)
- Jiachen Deng
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Jingjing Wu
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Hailong Tian
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Jiajing Bao
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Yong Shi
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Weisheng Tian
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Jinghan Gui
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
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Ilangovan A, Sakthivel P, Zipse H. An Unusual Grob-type C-C/C-O Bond Cleavage of 5-Acyl-2,3-dihydro-4H-pyran-4-one Derivatives. ChemistrySelect 2016. [DOI: 10.1002/slct.201600131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Andivelu Ilangovan
- School of Chemistry; Bharathidasan University; Tiruchirapplli- 620024 Tamilnadu India
| | - Palaniappan Sakthivel
- School of Chemistry; Bharathidasan University; Tiruchirapplli- 620024 Tamilnadu India
| | - Hendrik Zipse
- Department of Chemistry; LMU Muenchen; Butenandtstrasse 5-13 81377 Muenchen Germany
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Drahl MA, Manpadi M, Williams LJ. C-C fragmentation: origins and recent applications. Angew Chem Int Ed Engl 2013; 52:11222-51. [PMID: 24115282 DOI: 10.1002/anie.201209833] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2012] [Indexed: 11/07/2022]
Abstract
It has been 60 years since Eschenmoser and Frey disclosed the archetypal CC fragmentation reaction. New fragmentations and several variants of the original quickly followed. Many of these variations, which include the Beckmann, Grob, Wharton, Marshall, and Eschenmoser-Tanabe fragmentations, have been reviewed over the intervening years. A close examination of the origins of fragmentation has not been described. Recently, useful new methods have flourished, particularly fragmentations that give alkynes and allenes, and such reactions have been applied to a range of complex motifs and natural products. This Review traces the origins of fragmentation reactions and provides a summary of the methods, applications, and new insights of heterolytic CC fragmentation reactions advanced over the last 20 years.
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Affiliation(s)
- Michael A Drahl
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, NJ 08854 (USA)
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6
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Drahl MA, Manpadi M, Williams LJ. C-C-Fragmentierung: Herkunft und jüngste Anwendungen. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201209833] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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7
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Hoang TT, Dudley GB. Synthesis of High-Value 1,6-Enynes by Tandem Fragmentation/Olefination. Org Lett 2013; 15:4026-9. [DOI: 10.1021/ol401839e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Tung T. Hoang
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Gregory B. Dudley
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
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8
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Tummatorn J, Dudley GB. Generation of medium-ring cycloalkynes by ring expansion of vinylogous acyl triflates. Org Lett 2011; 13:1572-5. [PMID: 21348490 DOI: 10.1021/ol2003308] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Reductive cyclization of aryl and vinyl iodides tethered to vinylogous acyl triflates (VATs) induces a ring-expanding fragmentation to provide cyclic alkynyl ketones, including strained nine-membered cycloalkynes, in fair to excellent yield. The tandem cyclization/C-C bond-cleavage is initiated under carefully optimized conditions by halogen-metal exchange in the presence of carbonyl and vinyl triflate functionality. A modified protocol for alkylation of 1,3-cyclohexanedione is described for preparing the relevant VAT substrates.
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Affiliation(s)
- Jumreang Tummatorn
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
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Kissane M, Murphy M, O'Brien E, Chopra J, Murphy L, Collins SG, Lawrence SE, Maguire AR. Addition-substitution reactions of 2-thio-3-chloroacrylamides with carbon, nitrogen, oxygen, sulfur and selenium nucleophiles. Org Biomol Chem 2011; 9:2452-72. [DOI: 10.1039/c0ob00805b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Tummatorn J, Dudley GB. Ring Opening/Fragmentation of Dihydropyrones for the Synthesis of Homopropargyl Alcohols. J Am Chem Soc 2008; 130:5050-1. [DOI: 10.1021/ja801018r] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jumreang Tummatorn
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306–4390, and Department of Chemistry, Faculty of Science, Chulalongkorn University, Phyathai Road, Bangkok 10330, Thailand
| | - Gregory B. Dudley
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306–4390, and Department of Chemistry, Faculty of Science, Chulalongkorn University, Phyathai Road, Bangkok 10330, Thailand
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13
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Kamijo S, Dudley GB. Tandem Nucleophilic Addition/Fragmentation Reactions and Synthetic Versatility of Vinylogous Acyl Triflates. J Am Chem Soc 2006; 128:6499-507. [PMID: 16683816 DOI: 10.1021/ja0608085] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A thorough analysis of the chemistry of vinylogous acyl triflates provides insight into important chemical processes and opens new directions in synthetic technology. Tandem nucleophilic addition/C-C bond cleaving fragmentation reactions of cyclic vinylogous acyl triflates 1 yield a variety of acyclic acetylenic compounds. Full details are disclosed herein. A wide array of nucleophiles, such as organolithium and Grignard reagents, lithium enolates and their analogues, hydride reagents, and lithium amides, are applied. The respective reactions produce ketones 2, 1,3-diketones and their analogues 3, alcohols 4, and amides 5. The present reactions are proposed to proceed through a 1,2-addition of the nucleophile to the carbonyl group of starting triflates 1 to form tetrahedral alkoxide intermediates C, followed by Grob-type fragmentation, which effects C-C bond cleavage to yield acyclic acetylenic compounds 2-5 and 7. The potent nucleofugacity of the triflate moiety is channeled through the sigma-bond framework of 1, providing direct access to the fragmentation pathway without denying other typical reactions of cyclic vinylogous esters. The synthetic versatility of vinylogous acyl triflates, including functionalization reactions of the cyclic enone core (1 --> 6 or 8), is also illustrated.
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Affiliation(s)
- Shin Kamijo
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, USA
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Kamijo S, Dudley GB. A Tandem Carbanion Addition/Carbon−Carbon Bond Cleavage Yields Alkynyl Ketones. J Am Chem Soc 2005; 127:5028-9. [PMID: 15810831 DOI: 10.1021/ja050663m] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Carbanion addition to vinylogous acid triflates triggers carbon-carbon bond cleavage to form alkynyl ketones under mild conditions. Mechanistic factors affecting the cleavage event and its relationship to complementary fragmentations are discussed. A range of tethered keto-alkynes are obtained by a unified approach.
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Affiliation(s)
- Shin Kamijo
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, USA
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Intramolecular Involvement of an Oxygen-containing Nucleophilic Group in Epoxy Ring Opening. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2005. [DOI: 10.1007/s11178-005-0141-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Reactions of Rh(SbPh3)3(CO)X (X=Cl, Br) with organic propargyl compounds. Synthesis, structure and reactivity of rhodiacyclopent-3-ene-2-one complexes. J Organomet Chem 2001. [DOI: 10.1016/s0022-328x(01)00879-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Bartoli G, Marcantoni E, Petrini M, Sambri L. A Stereoselective Synthesis of (E)-α, β-Unsaturated Ketones Involving the Reactions of Organocerium Reagents with Secondary β-Enamino Ketones. Chemistry 1996. [DOI: 10.1002/chem.19960020804] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Mehta BK, Dhar S, Ila H, Junjappa H. Highly efficient and selective displacement of alkylthio group on acylketene O,S-acetals by organocopper reagents: A novel route to 2-alkoxy/aryloxy-1-alkenylketones. Tetrahedron Lett 1995. [DOI: 10.1016/0040-4039(95)01990-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Synthesis of β-silyl ketones via reaction of trimethylsilyllthium with unsaturated hydrazones. Application to the synthesis of brevicomin. Tetrahedron 1988. [DOI: 10.1016/s0040-4020(01)86637-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Palladium mediated synthesis of conjugated E or Z enones and unsymmetrical divinyl ketones. one-pot preparation of isoegomaketone. Tetrahedron 1986. [DOI: 10.1016/s0040-4020(01)87356-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Synthesis of functionalised cyclopentanes by intramolecular radical-mediated cyclisations of terminal allenic ketones. Tetrahedron 1985. [DOI: 10.1016/s0040-4020(01)97179-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Dieter R, Fishpaugh JR, Silks LA. Chemoselective and stereoselective addition of organocuprates to α-oxoketene dithioacetals. Tetrahedron Lett 1982. [DOI: 10.1016/s0040-4039(00)87697-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Cahiez G, Alexakis A, Normant J. Simple stereospecific synthesis of the insect sex pheromones of cossus cossus, eupoecilia ambiguella and orgyia pseudotsugata. Tetrahedron Lett 1980. [DOI: 10.1016/s0040-4039(00)92738-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Brand JM, Young JC, Silverstein RM. Insect pheromones: a critical review of recent advances in their chemistry, biology, and application. FORTSCHRITTE DER CHEMIE ORGANISCHER NATURSTOFFE = PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS. PROGRES DANS LA CHIMIE DES SUBSTANCES ORGANIQUES NATURELLES 1979; 37:1-367. [PMID: 396212 DOI: 10.1007/978-3-7091-8545-2_1] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Hegedus LS. Transition metal derivatives in organic synthesis annual survey covering the year 1977. J Organomet Chem 1978. [DOI: 10.1016/s0022-328x(00)92308-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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