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Photochemical assisted novel formation of δ-lactone utilizing trimethylsilylacetylene, isopropanol and ironpentacarbonyl. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122437] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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2
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Liu Y, Xue J, Sun Z, Liu D, Xing Y, Li Y. Substituent-Controlled Selective Synthesis of Spirooxindoles and Oxazolyloxindoles via Two Tandem Reactions. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500290] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yun Liu
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; 222 Tianshui South Rd. Lanzhou 730000, Gansu P. R. China
| | - Jijun Xue
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; 222 Tianshui South Rd. Lanzhou 730000, Gansu P. R. China
| | - Zhou Sun
- College of Chemical Science and Engineering; Qingdao University; 308 Ningxia Rd. Qingdao 266000, Shandong P. R. China
| | - Dongxue Liu
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; 222 Tianshui South Rd. Lanzhou 730000, Gansu P. R. China
| | - Yacheng Xing
- College of Chemical Science and Engineering; Qingdao University; 308 Ningxia Rd. Qingdao 266000, Shandong P. R. China
| | - Ying Li
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; 222 Tianshui South Rd. Lanzhou 730000, Gansu P. R. China
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3
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Lin L, Kuang Y, Liu X, Feng X. Indium(III)-Catalyzed Asymmetric Hetero-Diels–Alder Reaction of Brassard-Type Diene with Aliphatic Aldehydes. Org Lett 2011; 13:3868-71. [DOI: 10.1021/ol2013999] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Yulong Kuang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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Maury J, Feray L, Bertrand MP. Unprecedented Noncatalyzed anti-Carbozincation of Diethyl Acetylenedicarboxylate through Alkylzinc Group Radical Transfer. Org Lett 2011; 13:1884-7. [DOI: 10.1021/ol200419x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Julien Maury
- Laboratoire Chimie Provence, UMR 6264, Equipe CMO, case 562, Université Aix-Marseille, FST Saint-Jérôme, av. Escadrille Normandie Niemen, 13397 Marseille cedex 20, France
| | - Laurence Feray
- Laboratoire Chimie Provence, UMR 6264, Equipe CMO, case 562, Université Aix-Marseille, FST Saint-Jérôme, av. Escadrille Normandie Niemen, 13397 Marseille cedex 20, France
| | - Michèle P. Bertrand
- Laboratoire Chimie Provence, UMR 6264, Equipe CMO, case 562, Université Aix-Marseille, FST Saint-Jérôme, av. Escadrille Normandie Niemen, 13397 Marseille cedex 20, France
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6
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Unexpected exo selectivity for an intramolecular Diels–Alder reaction involving a doubly-activated δ-pentenolide dienophile. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2010.12.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Landa A, Maestro M, Masdeu C, Puente Á, Vera S, Oiarbide M, Palomo C. Highly Enantioselective Conjugate Additions of Aldehydes to Vinyl Sulfones. Chemistry 2009; 15:1562-5. [DOI: 10.1002/chem.200802441] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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8
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Esteban J, Costa AM, Gómez À, Vilarrasa J. Michael Addition−Elimination Reactions of Chiral Enolates with Ethyl 3-Halopropenoates. Org Lett 2007; 10:65-8. [DOI: 10.1021/ol702632m] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jorge Esteban
- Departament de Química Orgànica, Facultat de Química, Universitat de Barcelona, Av. Diagonal 647, 08028 Barcelona, Catalonia, Spain
| | - Anna M. Costa
- Departament de Química Orgànica, Facultat de Química, Universitat de Barcelona, Av. Diagonal 647, 08028 Barcelona, Catalonia, Spain
| | - Àlex Gómez
- Departament de Química Orgànica, Facultat de Química, Universitat de Barcelona, Av. Diagonal 647, 08028 Barcelona, Catalonia, Spain
| | - Jaume Vilarrasa
- Departament de Química Orgànica, Facultat de Química, Universitat de Barcelona, Av. Diagonal 647, 08028 Barcelona, Catalonia, Spain
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Liu J, Wang M, Li B, Liu Q, Zhao Y. A Divergent Synthesis of Functionalized Unsaturated δ-Lactones from α-Alkenoyl-α-carboxyl Ketene Dithioacetals. J Org Chem 2007; 72:4401-5. [PMID: 17497924 DOI: 10.1021/jo0702488] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A divergent synthesis of functionalized unsaturated delta-lactones 2, 3, 4, and 5 has been developed starting from the readily available alpha-alkenoyl-alpha-carboxyl ketene dithioacetals 1 in high to excellent yields under mild reaction conditions. Thus, 6-substituted 3-(1,3-dithiolan/dithian-2-ylidene)-3H-pyran-2(6H)-ones 2, obtained from a consecutive reduction with NaBH4 and acidic workup of 1 via a novel vinylogous Pummerer cyclization, can be further transformed into alpha-pyranones 3, 4, and 5 upon a sequential isomerization catalyzed by triethylamine (to give 3), followed by dethioacetalization (to give 4) or a formylation with Vilsmeier reagent (to give 5).
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Affiliation(s)
- Jun Liu
- Department of Chemistry, Northeast Normal University, Changchun, 130024, People's Republic of China
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Taguchi T, Saito A, Yanai H. Development of efficient Lewis acid catalysts for intramolecular cycloaddition reactions of ester-tethered substrates. CHEM REC 2007; 7:167-79. [PMID: 17549689 DOI: 10.1002/tcr.20112] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
We have developed novel bidentate Lewis acids that efficiently promote the intramolecular cycloaddition reactions of ester-tethered substrates. Bis-aluminated triflic amide derivatives [TfN(AlR(1)R(2))2], which are generated by simply mixing triflic amide and 2 equiv of methyl aluminum or aluminum hydride, catalyzed intramolecular Diels-Alder (DA) reactions of ester-tethered 1,7,9-trienes and intermolecular DA reactions of alpha,beta-unsaturated lactones. We also found that bimetallic Lewis acid derived from 1,1'-biphenyl-2,2'-di(triflyl)amide and dimethylaluminum chloride promoted the intramolecular [3 + 2] cycloaddition reaction of acrylate derivatives having an allylsilane part.
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Affiliation(s)
- Takeo Taguchi
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1423-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan.
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