1
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Ning C, Yu Z, Shi M, Wei Y. Palladium-catalyzed selective C-C bond cleavage of keto-vinylidenecyclopropanes: construction of structurally rich dihydrofurans and tetrahydrofurans. Chem Sci 2024; 15:9192-9200. [PMID: 38903235 PMCID: PMC11186342 DOI: 10.1039/d4sc02536a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 05/14/2024] [Indexed: 06/22/2024] Open
Abstract
Palladium-catalyzed selective cleavage of the distal C-C bond and proximal C-C bond of keto-vinylidenecyclopropanes by altering the sterically bulky phosphine ligands has been realized. The proximal C-C bond cleavage can be achieved by using dtbpf as a phosphine ligand, affording bicyclic products containing dihydrofuran skeletons in good yields along with broad substrate scope. In proximal C-C bond cleavage reactions, the eight-membered cyclic palladium intermediate plays a key role in the reaction. The [3 + 2] cycloaddition of keto-vinylidenecyclopropanes through the distal C-C bond cleavage can be effectively accomplished with t BuXPhos as a phosphine ligand and ZnCl2 as an additive, delivering bicyclic products containing tetrahydrofuran skeletons in good yields. The further transformation of these bicyclic products has been demonstrated, and the reaction mechanisms of two different C-C bond cleavage reactions have been investigated by control experiments and DFT calculations.
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Affiliation(s)
- Chao Ning
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry & Molecular Engineering, East China University of Science and Technology Meilong Road No.130 Shanghai 200237 China
| | - Ziqi Yu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry & Molecular Engineering, East China University of Science and Technology Meilong Road No.130 Shanghai 200237 China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry & Molecular Engineering, East China University of Science and Technology Meilong Road No.130 Shanghai 200237 China
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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2
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Burke AJ, Moutayakine A. Stereoselective benzilic acid rearrangements: new advances on an old story. Chem Commun (Camb) 2021; 57:2585-2590. [DOI: 10.1039/d0cc07905g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The benzilic acid rearrangement (BAR) is a powerful method introducing key structural elements in many targets. In this article we discuss important recent stereoselective BARs that include the first enantioselective catalytic example.
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Affiliation(s)
- Anthony J. Burke
- LAQV-REQUIMTE
- University of Évora
- Institute for Research and Advanced Training (IIFA)
- Évora
- Portugal
| | - Amina Moutayakine
- Department of Chemistry
- School of Science and Technology
- University of Évora
- Évora
- Portugal
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3
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Zhang L, Cao T, Jiang H, Zhu S. Deconstructive Reorganization: De Novo Synthesis of Hydroxylated Benzofuran. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915212] [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)
- Ling Zhang
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology 510640 Guangzhou China
| | - Tongxiang Cao
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology 510640 Guangzhou China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology 510640 Guangzhou China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology 510640 Guangzhou China
- State Key Laboratory of Elemento-Organic ChemistryNankai University 300071 Tianjing China
- Singfar Laboratories 510670 Guangzhou China
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4
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Zhang L, Cao T, Jiang H, Zhu S. Deconstructive Reorganization: De Novo Synthesis of Hydroxylated Benzofuran. Angew Chem Int Ed Engl 2020; 59:4670-4677. [PMID: 31961991 DOI: 10.1002/anie.201915212] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/18/2020] [Indexed: 12/26/2022]
Abstract
An unprecedented deconstructive reorganization strategy for the de novo synthesis of hydroxylated benzofurans from kojic acid- or maltol-derived alkynes is reported. In this reaction, both the benzene and furan rings were simultaneously constructed, whereas the pyrone moiety of the kojic acid or maltol was deconstructed and then reorganized into the benzene ring as a six-carbon component. Through this strategy, at least one free hydroxyl group was introduced into the benzene ring in a substitution-pattern tunable fashion without protection-deprotection and redox adjustment. With this method, a large number of hydroxylated benzofuran derivatives with different substitution-patterns have been prepared efficiently. This methodology has also been shown as the key step in a collective total synthesis of hydroxylated benzofuran-containing natural products (11 examples).
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Affiliation(s)
- Ling Zhang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China
| | - Tongxiang Cao
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, 300071, Tianjing, China.,Singfar Laboratories, 510670, Guangzhou, China
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5
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Agasti S, Pal T, Achar TK, Maiti S, Pal D, Mandal S, Daud K, Lahiri GK, Maiti D. Regioselective Synthesis of Fused Furans by Decarboxylative Annulation of α,β‐Alkenyl Carboxylic Acid with Cyclic Ketone: Synthesis of Di‐Heteroaryl Derivatives. Angew Chem Int Ed Engl 2019; 58:11039-11043. [DOI: 10.1002/anie.201906264] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Indexed: 12/28/2022]
Affiliation(s)
- Soumitra Agasti
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Tapas Pal
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Tapas Kumar Achar
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Siddhartha Maiti
- Department of Biosciences & BioengineeringIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Debasis Pal
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Smita Mandal
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Kishan Daud
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Goutam Kumar Lahiri
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Debabrata Maiti
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
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6
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Agasti S, Pal T, Achar TK, Maiti S, Pal D, Mandal S, Daud K, Lahiri GK, Maiti D. Regioselective Synthesis of Fused Furans by Decarboxylative Annulation of α,β‐Alkenyl Carboxylic Acid with Cyclic Ketone: Synthesis of Di‐Heteroaryl Derivatives. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906264] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Soumitra Agasti
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Tapas Pal
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Tapas Kumar Achar
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Siddhartha Maiti
- Department of Biosciences & BioengineeringIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Debasis Pal
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Smita Mandal
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Kishan Daud
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Goutam Kumar Lahiri
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Debabrata Maiti
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
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7
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Holzschneider K, Kirsch SF. [1, 2]-Migration Reactions Catalyzed by Gold Complexes and their Applications in Total Synthesis. Isr J Chem 2018. [DOI: 10.1002/ijch.201700081] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | - Stefan F. Kirsch
- Organic Chemistry; Bergische Universität Wuppertal; Gaußstr. 20 42119 Wuppertal Germany
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8
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Wang X, Zhang Y, Ponomareva LV, Qiu Q, Woodcock R, Elshahawi SI, Chen X, Zhou Z, Hatcher BE, Hower JC, Zhan CG, Parkin S, Kharel MK, Voss SR, Shaaban KA, Thorson JS. Mccrearamycins A-D, Geldanamycin-Derived Cyclopentenone Macrolactams from an Eastern Kentucky Abandoned Coal Mine Microbe. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612447] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xiachang Wang
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
| | - Yinan Zhang
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
| | - Larissa V. Ponomareva
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
| | - Qingchao Qiu
- Department of Biology; University of Kentucky; Lexington KY 40506 USA
| | - Ryan Woodcock
- Department of Biology; University of Kentucky; Lexington KY 40506 USA
| | - Sherif I. Elshahawi
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
| | - Xiabin Chen
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
| | - Ziyuan Zhou
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
| | - Bruce E. Hatcher
- Kentucky Division of Abandoned Mine Lands; 300 Sower Blvd Frankfort KY 40601 USA
| | - James C. Hower
- Center for Applied Energy Research; University of Kentucky; Lexington KY 40511 USA
| | - Chang-Guo Zhan
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
| | - Sean Parkin
- Department of Chemistry; University of Kentucky; Lexington KY 40506 USA
| | - Madan K. Kharel
- School of Pharmacy; University of Maryland Eastern Shore; Princess Anne Maryland 21853 USA
| | - S. Randal Voss
- Department of Biology; University of Kentucky; Lexington KY 40506 USA
| | - Khaled A. Shaaban
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
| | - Jon S. Thorson
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
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9
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Wang X, Zhang Y, Ponomareva LV, Qiu Q, Woodcock R, Elshahawi SI, Chen X, Zhou Z, Hatcher BE, Hower JC, Zhan CG, Parkin S, Kharel MK, Voss SR, Shaaban KA, Thorson JS. Mccrearamycins A-D, Geldanamycin-Derived Cyclopentenone Macrolactams from an Eastern Kentucky Abandoned Coal Mine Microbe. Angew Chem Int Ed Engl 2017; 56:2994-2998. [PMID: 28140487 DOI: 10.1002/anie.201612447] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 01/18/2017] [Indexed: 12/13/2022]
Abstract
Four cyclopentenone-containing ansamycin polyketides (mccrearamycins A-D), and six new geldanamycins (Gdms B-G, including new linear and mycothiol conjugates), were characterized as metabolites of Streptomyces sp. AD-23-14 isolated from the Rock Creek underground coal mine acid drainage site. Biomimetic chemical conversion studies using both simple synthetic models and Gdm D confirmed that the mccrearamycin cyclopentenone derives from benzilic acid rearrangement of 19-hydroxy Gdm, and thereby provides a new synthetic derivatization strategy and implicates a potential unique biocatalyst in mccrearamycin cyclopentenone formation. In addition to standard Hsp90α binding and cell line cytotoxicity assays, this study also highlights the first assessment of Hsp90α modulators in a new axolotl embryo tail regeneration (ETR) assay as a potential new whole animal assay for Hsp90 modulator discovery.
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Affiliation(s)
- Xiachang Wang
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
| | - Yinan Zhang
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
| | - Larissa V Ponomareva
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
| | - Qingchao Qiu
- Department of Biology, University of Kentucky, Lexington, KY, 40506, USA
| | - Ryan Woodcock
- Department of Biology, University of Kentucky, Lexington, KY, 40506, USA
| | - Sherif I Elshahawi
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
| | - Xiabin Chen
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
| | - Ziyuan Zhou
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
| | - Bruce E Hatcher
- Kentucky Division of Abandoned Mine Lands, 300 Sower Blvd, Frankfort, KY, 40601, USA
| | - James C Hower
- Center for Applied Energy Research, University of Kentucky, Lexington, KY, 40511, USA
| | - Chang-Guo Zhan
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
| | - Sean Parkin
- Department of Chemistry, University of Kentucky, Lexington, KY, 40506, USA
| | - Madan K Kharel
- School of Pharmacy, University of Maryland Eastern Shore, Princess Anne, Maryland, 21853, USA
| | - S Randal Voss
- Department of Biology, University of Kentucky, Lexington, KY, 40506, USA
| | - Khaled A Shaaban
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
| | - Jon S Thorson
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
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10
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Naveen T, Deb A, Maiti D. Copper/P(t
Bu)3
-Mediated Regiospecific Synthesis of Fused Furans and Naphthofurans. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609401] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Togati Naveen
- Department of Chemistry; Indian Institute of Technology Bombay; Powai Mumbai 400076 India
| | - Arghya Deb
- Department of Chemistry; Indian Institute of Technology Bombay; Powai Mumbai 400076 India
| | - Debabrata Maiti
- Department of Chemistry; Indian Institute of Technology Bombay; Powai Mumbai 400076 India
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11
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Naveen T, Deb A, Maiti D. Copper/P(tBu) 3 -Mediated Regiospecific Synthesis of Fused Furans and Naphthofurans. Angew Chem Int Ed Engl 2016; 56:1111-1115. [PMID: 27996192 DOI: 10.1002/anie.201609401] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Indexed: 01/12/2023]
Abstract
A novel [3+2] cycloaddition between a variety of cyclic ketones and diverse olefins or alkynes can be effectively promoted by copper in combination with the tri-tert-butylphosphine [P(tBu)3 ] ligand. This protocol exhibits excellent selectivity and provides an exemplary set of fused heterocycles in good to excellent yields. Present strategy also represents an extremely simple and atom-economic way to construct substituted fused furans and naphthofurans from readily available starting materials under mild reaction conditions. The utility of the method is further demonstrated by the synthesis of chiral furans from (R)-(-)-carvone and (S)-(+)-carvone. A plausible mechanism involving the oxidative radical cyclization has been suggested based on experimental observations.
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Affiliation(s)
- Togati Naveen
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Arghya Deb
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
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12
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Wang X, Chen RX, Wei ZF, Zhang CY, Tu HY, Zhang AD. Chemoselective Transformation of Diarylethanones to Arylmethanoic Acids and Diarylmethanones and Mechanistic Insights. J Org Chem 2015; 81:238-49. [DOI: 10.1021/acs.joc.5b02506] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Xing Wang
- Key Laboratory of Pesticide & Chemical Biology of the Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Rui-Xi Chen
- Key Laboratory of Pesticide & Chemical Biology of the Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Zeng-Feng Wei
- Key Laboratory of Pesticide & Chemical Biology of the Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Chen-Yang Zhang
- Key Laboratory of Pesticide & Chemical Biology of the Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Hai-Yang Tu
- Key Laboratory of Pesticide & Chemical Biology of the Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Ai-Dong Zhang
- Key Laboratory of Pesticide & Chemical Biology of the Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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13
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Shiroodi RK, Vera CIR, Dudnik AS, Gevorgyan V. Synthesis of furans and pyrroles via migratory and double migratory cycloisomerization reactions of homopropargylic aldehydes and imines. Tetrahedron Lett 2015; 56:3251-3254. [PMID: 26185336 PMCID: PMC4500526 DOI: 10.1016/j.tetlet.2015.01.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A novel gold-catalyzed divergent sysnthesis of furans and pyrroles employing readily available homopropargylic aldehydes and imines have been developed. The regiochemical outcome of this reaction is dependent on the substituent on the terminal alkyne of substrate. Thus, substrates possessing alkyl and aryl substituent at the alkyne moiety produce 2,3,5-substituted furans and pyrroles via a migratory cycloisomerizaton reaction. Whereas, their silicon analogues are capable to undergo a double migratory process leading to 2,3,4-substituted heterocycles.
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Affiliation(s)
- Roohollah Kazem Shiroodi
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, IL 60607-7061, United States
| | - Claudia I. Rivera Vera
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, IL 60607-7061, United States
| | - Alexander S. Dudnik
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, IL 60607-7061, United States
| | - Vladimir Gevorgyan
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, IL 60607-7061, United States
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14
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Xiao M, Wu W, Wei L, Jin X, Yao X, Xie Z. Total synthesis of (−)-isatisine A via a biomimetic benzilic acid rearrangement. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.09.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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15
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Kumari ALS, Swamy KCK. Divergence in the Reactivity between Amine- and Phosphine-Catalyzed Cycloaddition Reactions of Allenoates with Enynals: One-Pot Gold-Catalyzed Synthesis of Trisubstituted Benzofurans from the [3 + 2] Cycloadduct via 1,2-Alkyl Migration and Dehydrogenation. J Org Chem 2015; 80:4084-96. [DOI: 10.1021/acs.joc.5b00415] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. Leela Siva Kumari
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India
| | - K. C. Kumara Swamy
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India
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16
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Gold(I)-catalyzed heterocyclization of β-alkynyl hydroxamic acids: synthesis of isoxazolidin-3-ones. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1319-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Palisse A, Kirsch SF. Synthesis of Furans through Silver-Catalyzed Propargyl-Claisen Rearrangement Followed by Cyclocondensation. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402983] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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18
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Shiroodi R, Koleda O, Gevorgyan V. 1,2-boryl migration empowers regiodivergent synthesis of borylated furans. J Am Chem Soc 2014; 136:13146-9. [PMID: 25198147 PMCID: PMC4183646 DOI: 10.1021/ja507054j] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Indexed: 01/17/2023]
Abstract
A regioselective transition metal-catalyzed cycloisomerization reaction of boron-containing alkynyl epoxides toward C2- and C3-borylated furans has been developed. It was found that the copper catalyst as well as the gold catalyst with more basic triflate counterion favor boryl migration toward C3-borylated furans, whereas employment of the cationic gold hexafluoroantimonate affords C2-borylated furan via a formal 1,2-hydrogen shift.
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Affiliation(s)
- Roohollah
Kazem Shiroodi
- Department of Chemistry, University of
Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, United States
| | - Olesja Koleda
- Department of Chemistry, University of
Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, United States
| | - Vladimir Gevorgyan
- Department of Chemistry, University of
Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, United States
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19
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Chen Y, Wang L, Sun N, Xie X, Zhou X, Chen H, Li Y, Liu Y. Gold(I)-Catalyzed Furan-yne Cyclizations Involving 1,2-Rearrangement: Efficient Synthesis of Functionalized 1-Naphthols and Its Application to the Synthesis of Wailupemycin G. Chemistry 2014; 20:12015-9. [DOI: 10.1002/chem.201403113] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Indexed: 11/05/2022]
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20
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Jiang B, Ye Q, Fan W, Wang SL, Tu SJ, Li G. Four-component strategy for selective synthesis of azepino[5,4,3-cd]indoles and pyrazolo[3,4-b]pyridines. Chem Commun (Camb) 2014; 50:6108-11. [PMID: 24777181 PMCID: PMC4060249 DOI: 10.1039/c4cc00740a] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel four-component strategy for the selective synthesis of fused azepino[5,4,3-cd]indoles and pyrazolo [3,4-b]pyridines has been established. The bond-forming efficiency, accessibility of starting materials and substrate scope provide invaluable access to tetra-, and bis-heterocyclic scaffolds.
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Affiliation(s)
- Bo Jiang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 211116, P. R. China
| | - Qin Ye
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 211116, P. R. China
| | - Wei Fan
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 211116, P. R. China
| | - Shu-Liang Wang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 211116, P. R. China
| | - Shu-Jiang Tu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 211116, P. R. China
| | - Guigen Li
- Institute of Chemistry & Biomedical Sciences, Nanjing University, Nanjing 210093, P. R. China
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409-1061, USA;
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Hao WJ, Wang JQ, Xu XP, Zhang SL, Wang SY, Ji SJ. I2/O2-promoted domino reactions of isatins or 3-hydroxyindolin-2-one derivatives with enaminones. J Org Chem 2013; 78:12362-73. [PMID: 24295532 DOI: 10.1021/jo401773j] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
I2-promoted domino reactions of isatins or 3-hydroxyindolin-2-one derivatives with enaminones under O2 conditions have been established. The reactions of isatins with enaminones afforded functionalized tetracyclic pyrrolo[2,3,4-kl]acridine derivatives in moderate to good yields through domino cyclization and C-H oxidation. The reactions of 3-hydroxyindolin-2-one derivatives with enaminones proceeded well to give functionalized pyrrolo[2,3,4-kl]acridine derivatives via tandem ring-opening/recyclization/methyl migration sequences with two C-C bonds cleaved.
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Affiliation(s)
- Wen-Juan Hao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, ‡College of Pharmaceutical Sciences, Soochow University , Suzhou 215123, China
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Gulevich AV, Dudnik AS, Chernyak N, Gevorgyan V. Transition metal-mediated synthesis of monocyclic aromatic heterocycles. Chem Rev 2013; 113:3084-213. [PMID: 23305185 PMCID: PMC3650130 DOI: 10.1021/cr300333u] [Citation(s) in RCA: 814] [Impact Index Per Article: 74.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Anton V. Gulevich
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, 4500 SES, M/C 111, Chicago, Illinois 60607-7061
| | - Alexander S. Dudnik
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, 4500 SES, M/C 111, Chicago, Illinois 60607-7061
| | - Natalia Chernyak
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, 4500 SES, M/C 111, Chicago, Illinois 60607-7061
| | - Vladimir Gevorgyan
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, 4500 SES, M/C 111, Chicago, Illinois 60607-7061
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Nimbalkar M, Luy B, Skinner TE, Neves JL, Gershenzon NI, Kobzar K, Bermel W, Glaser SJ. The Fantastic Four: A plug 'n' play set of optimal control pulses for enhancing NMR spectroscopy. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2013; 228:16-31. [PMID: 23333616 DOI: 10.1016/j.jmr.2012.12.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2012] [Revised: 12/05/2012] [Accepted: 12/11/2012] [Indexed: 06/01/2023]
Abstract
We present highly robust, optimal control-based shaped pulses designed to replace all 90° and 180° hard pulses in a given pulse sequence for improved performance. Special attention was devoted to ensuring that the pulses can be simply substituted in a one-to-one fashion for the original hard pulses without any additional modification of the existing sequence. The set of four pulses for each nucleus therefore consists of 90° and 180° point-to-point (PP) and universal rotation (UR) pulses of identical duration. These 1ms pulses provide uniform performance over resonance offsets of 20kHz ((1)H) and 35kHz ((13)C) and tolerate reasonably large radio frequency (RF) inhomogeneity/miscalibration of ±15% ((1)H) and ±10% ((13)C), making them especially suitable for NMR of small-to-medium-sized molecules (for which relaxation effects during the pulse are negligible) at an accessible and widely utilized spectrometer field strength of 600MHz. The experimental performance of conventional hard-pulse sequences is shown to be greatly improved by incorporating the new pulses, each set referred to as the Fantastic Four (Fanta4).
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Affiliation(s)
- Manoj Nimbalkar
- Department of Chemistry, Technische Universität München, Lichtenbergstrasse 4, D-85747 Garching, Germany.
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Zhu ZB, Kirsch SF. Propargyl vinyl ethers as heteroatom-tethered enyne surrogates: diversity-oriented strategies for heterocycle synthesis. Chem Commun (Camb) 2013; 49:2272-83. [DOI: 10.1039/c3cc37258h] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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25
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Li W, Li Y, Zhou G, Wu X, Zhang J. Gold(I)-Catalyzed Regiodivergent Rearrangements: 1,2- and 1,2′-Alkyl Migration in Skipped Alkynyl Ketones. Chemistry 2012; 18:15113-21. [DOI: 10.1002/chem.201201727] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Indexed: 11/06/2022]
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26
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Huang X, Peng B, Luparia M, Gomes LFR, Veiros LF, Maulide N. Gold-katalysierte Synthese von Furanen und Furanonen aus Schwefel-Yliden. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201203637] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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27
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Huang X, Peng B, Luparia M, Gomes LFR, Veiros LF, Maulide N. Gold-catalyzed synthesis of furans and furanones from sulfur ylides. Angew Chem Int Ed Engl 2012; 51:8886-90. [PMID: 22847787 DOI: 10.1002/anie.201203637] [Citation(s) in RCA: 111] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Revised: 06/08/2012] [Indexed: 11/05/2022]
Affiliation(s)
- Xueliang Huang
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
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Yang YF, Shu XZ, Luo JY, Ali S, Liang YM. Platinum-Catalyzed Cyclization/[1,2]-Alkyl Migration/Allyl Shift/Cyclization Cascade of Epoxy Alkynyl Allyl Ethers: A Step-Economical Route to Spirobenzo[h]chromanones. Chemistry 2012; 18:8600-4. [DOI: 10.1002/chem.201200126] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Indexed: 11/09/2022]
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29
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Wu W, Xiao M, Wang J, Li Y, Xie Z. Biomimetic Total Synthesis of (−)-Isatisine A. Org Lett 2012; 14:1624-7. [DOI: 10.1021/ol300379g] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wei Wu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Mingxing Xiao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Jiangbing Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Ying Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Zhixiang Xie
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
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Affiliation(s)
- Philipp Klahn
- Organic Chemistry, Bergische Universität Wuppertal, Gaussstr. 20, 42119 Wuppertal, Germany, and Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Alexander Duschek
- Organic Chemistry, Bergische Universität Wuppertal, Gaussstr. 20, 42119 Wuppertal, Germany, and Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Clémence Liébert
- Organic Chemistry, Bergische Universität Wuppertal, Gaussstr. 20, 42119 Wuppertal, Germany, and Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Stefan F. Kirsch
- Organic Chemistry, Bergische Universität Wuppertal, Gaussstr. 20, 42119 Wuppertal, Germany, and Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
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31
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Zheng D, Li S, Wu J. Generation of 3-(1H-pyrrol-3-yl)-1H-inden-1-ones via a tandem reaction of 1-(2-alkynylphenyl)-2-enone, 2-isocyanoacetate, and water. Chem Commun (Camb) 2012; 48:8568-70. [DOI: 10.1039/c2cc34509a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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