1
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Thorat SS, Shimpi SP, Sambherao PI, Rama Krishna G, Kontham R. Regioselective Synthesis of Benzannulated [5,6]-Oxaspirolactones via Cu(II)-Catalyzed Cycloisomerization of 2-(5-Hydroxyalkynyl)benzoates. J Org Chem 2023. [PMID: 38010985 DOI: 10.1021/acs.joc.3c01751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Spiroketals and oxaspirolactones are widely found in biologically active natural products, serving as important structural motifs. In this study, we present a Cu(II)-catalyzed cascade cycloisomerization of 2-(5-hydroxyalkynyl)benzoates, enabling the regioselective synthesis of benzannulated [5,6]-oxaspirolactones containing an isochromen-1-one moiety. This strategy offers a rapid and efficient approach to access a diverse array of benzannulated [5,6]-oxaspirolactones. The methodology presented here showcases a broad substrate scope, delivering good yields and scalability up to gram scale. The structures of the oxaspirolactones were unequivocally confirmed through single-crystal X-ray analysis and by analogy using 1H and 13C{1H} NMR data.
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Affiliation(s)
- Sagar S Thorat
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sagar P Shimpi
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Pooja I Sambherao
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Gamidi Rama Krishna
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Center for Materials Characterization, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Ravindar Kontham
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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2
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Vinoth P, Karuppasamy M, Gupta A, Nagarajan S, Maheswari CU, Sridharan V. Intramolecular oxypalladation-initiated domino sequence: One-pot, two-step regioselective synthesis of isoquinolines. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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3
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Le TQ, Oh CH. Acid-catalyzed synthesis of 2,3-dihydronaphtho[2,3- b]furan and 3,4-dihydro-2 H-benzo[ g]chromene derivatives. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2149343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thuy Quynh Le
- Department of Chemistry and Research Institute of Natural Science, Hanyang University, Seoul, South Korea
| | - Chang Ho Oh
- Department of Chemistry and Research Institute of Natural Science, Hanyang University, Seoul, South Korea
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4
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Chen G, Xu B. Divergent Synthesis of Sulfonyl Quinolines, Formyl Indoles, and Quinolones from Ethynyl Benzoxazinanones via Au I Catalysis, Au I-ArI Co-Catalysis, and Silver Catalysis. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Guifang Chen
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Bo Xu
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
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5
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Yu B, Huang R, Li R, Zhang H, Huang H. Silver-catalyzed chemodivergent assembly of aminomethylated isochromenes and naphthols. Chem Commun (Camb) 2022; 58:3969-3972. [PMID: 35253823 DOI: 10.1039/d2cc00303a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A silver-catalyzed chemodivergent cyclization of alkyne-tethered aldehydes with aminals to aminomethylated 1H-isochromenes and naphthols is described by tuning the reaction conditions. The reaction exhibits broad substrate generality and functional group compatibility. Mechanistic studies have disclosed that the aminomethylated naphthols are generated from the resulting N,O-aminal containing isochromenes via a silver-catalyzed unusual rearrangement process.
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Affiliation(s)
- Bangkui Yu
- Department of Chemistry, School of Chemistry and Material Science, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, P. R. China.
| | - Renbin Huang
- Department of Chemistry, School of Chemistry and Material Science, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, P. R. China.
| | - Renren Li
- Department of Chemistry, School of Chemistry and Material Science, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, P. R. China.
| | - Haocheng Zhang
- Department of Chemistry, School of Chemistry and Material Science, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, P. R. China.
| | - Hanmin Huang
- Department of Chemistry, School of Chemistry and Material Science, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, P. R. China. .,State Key Laboratory of Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
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6
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Mankad Y, Thorat SS, Das P, Rama Krishna G, Kontham R, Reddy DS. Ready Access to Benzannulated [5,5]-Oxaspirolactones Using Au(III)-Catalyzed Cascade Cyclizations. J Org Chem 2022; 87:3025-3041. [PMID: 35188770 DOI: 10.1021/acs.joc.1c02843] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This work showcases an unprecedented Au(III)-catalyzed cascade cyclization of 2-(4-hydroxyalkynyl)benzoates to access benzannulated [5,5]-oxaspirolactones related to biologically active natural products. This reaction proceeds through an initial 5-endo-dig mode of hydroalkoxylation of the alkynol segment to give the oxocarbenium species (via cyclic enol-ether) followed by the addition of carboxylate onto the oxocarbenium that delivers the oxaspirolactone scaffold. While testing this method's scope, we found that the steric and electronic environment of the hydroxyl group could alter the reaction pathway that delivers isochromenone through a competitive 6-endo-dig mode of attack of the carboxylate onto the tethered alkyne.
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Affiliation(s)
- Yash Mankad
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu-180001, India.,Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Sagar S Thorat
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Pronay Das
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Gamidi Rama Krishna
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008, India.,Center for Materials Characterization, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008, India
| | - Ravindar Kontham
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - D Srinivasa Reddy
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu-180001, India.,Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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7
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Dupeux A, Michelet V. Gold-Catalyzed Domino Cycloisomerization/Alkoxylation: An Entry to 3,4-Dihydro-1 H-[1,4]oxazino[4,3- a]indole. J Org Chem 2021; 86:17738-17747. [PMID: 34633827 DOI: 10.1021/acs.joc.1c02030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A novel and mild synthetic route for the preparation of functionalized polycyclic indole skeletons via a gold-mediated cycloisomerization/alkoxylation of 1,6-aldehyde-yne has been developed. This atom-economical catalytic process that associates IPrAu(MeCN)BF4 and an alcohol demonstrated remarkable selectivity in accessing functionalized 3,4-dihydro-1H-[1,4]oxazino[4,3-a]indole derivatives of high synthetic utility (21 examples, yields of ≤96%) and could be optimized under asymmetric conditions with an enantiomeric excess of ≤86%.
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Affiliation(s)
- Aurélien Dupeux
- Côte d'Azur University, Institut de Chimie de Nice, Valrose Park, 06108 Nice Cedex 2, France
| | - Véronique Michelet
- Côte d'Azur University, Institut de Chimie de Nice, Valrose Park, 06108 Nice Cedex 2, France
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8
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Nanda SK, Mallik R. Transition Metal-Catalyzed Hydroalkoxylation of Alkynes: An Overview. Chemistry 2021; 27:15571-15604. [PMID: 34343374 DOI: 10.1002/chem.202102194] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Indexed: 01/12/2023]
Abstract
Oxygen-bearing motifs, mainly the congener heterocycles are ubiquitous due to their presence in various natural products and bioactive scaffolds. Although in literature, several strategies have been developed for their synthesis, hydroalkoxylation of alkynes has come forward as a method of choice and has been used extensively. In particular, hydroalkoxylation of alkynes has gained enormous attention from the synthetic community due to the rapid access to a very useful and reactive synthetic intermediate like 'enol ether'. Furthermore, to manifold the utility of these methods, reports have been developed elaborating the generation of 'enol ether' using hydroalkoxylation and their usage in various reactions in cascade or tandem manner. This review focuses on recent development on the hydroalkoxylation of alkynes for the synthesis of oxygen-containing entities.
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Affiliation(s)
- Santosh K Nanda
- Department of Chemistry, School of Applied Science, Centurion University of Technology and Management Paralakhemundi, Odisha, 761211, India
| | - Rosy Mallik
- Department of Chemistry, School of Applied Science, Centurion University of Technology and Management Paralakhemundi, Odisha, 761211, India
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9
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Thongsornkleeb C, Tummatorn J, Ruchirawat S. Utilization of ortho-alkynylarylcarbonyl derivatives for creating structurally diverse chemical compounds. Org Biomol Chem 2021; 19:5982-5998. [PMID: 34165112 DOI: 10.1039/d1ob00629k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
ortho-Alkynylarylcarbonyl compounds, including ketones, aldehydes, carboxylic acids, carboxylate esters and amides, have served as useful building blocks for synthetic chemists to prepare numerous classes of important molecules. Various synthetic conversions starting from ortho-alkynylarylcarbonyl precursors are made possible by their unique and enabling structures embedded with reactive carbonyl and alkyne functional groups. These functional groups can be converted directly and independently to other compounds by several reactions. This review highlights the use of these compounds as common precursors for the divergent synthesis of valuable molecules. Moreover, these ortho-alkynylarylcarbonyl compounds can be decorated with other functional group tethers which can lead to an even greater diversity of molecular scaffolds.
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Affiliation(s)
- Charnsak Thongsornkleeb
- Program on Chemical Sciences, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand and Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand.
| | - Jumreang Tummatorn
- Program on Chemical Sciences, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand and Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand.
| | - Somsak Ruchirawat
- Program on Chemical Sciences, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand and Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand.
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10
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Ning SS, Meng D, Zhang JY, Liu SL, Zhou NN, Jin X, Zhu HT. Metal-Free Intramolecular [3+2] Cycloaddition of γ-Hydroxy Acetylenic Ketones with Alkynes for the Synthesis of Naphtho[1,2- c]furan-5-ones and Its Derivatization via a Selective C(sp 2)-H Deuteration Reaction. J Org Chem 2021; 86:7347-7358. [PMID: 34032437 DOI: 10.1021/acs.joc.1c00224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A metal-free intramolecular [3+2] cycloaddtion has been achieved by treating benzene-linked propynol-ynes with AcOH/H2O in a one-pot manner. The reaction provides greener, 100% atom-economic, highly regioselective, and more practical access to functionalized naphtho[1,2-c]furan-5-ones with valuable and versatile applications. The regioselective α-deuteration of naphtho[1,2-c]furan-5-ones has been also presented with excellent deuterium incorporation and chemical yields. Moreover, the fluorescent properties of naphtho[1,2-c]furan-5-one products have been investigated in solution.
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Affiliation(s)
- Si-Si Ning
- Shannxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Dan Meng
- Shannxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Jie-Yun Zhang
- Shannxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Shi-Lei Liu
- Shannxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Ni-Ni Zhou
- Shannxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Xiaojie Jin
- Gansu University Key Laboratory for Molecular Medicine & Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou 730000, China
| | - Hai-Tao Zhu
- Shannxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
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11
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Chintawar CC, Yadav AK, Kumar A, Sancheti SP, Patil NT. Divergent Gold Catalysis: Unlocking Molecular Diversity through Catalyst Control. Chem Rev 2021; 121:8478-8558. [PMID: 33555193 DOI: 10.1021/acs.chemrev.0c00903] [Citation(s) in RCA: 130] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The catalyst-directed divergent synthesis, commonly termed as "divergent catalysis", has emerged as a promising technique as it allows chartering of structurally distinct products from common substrates simply by modulating the catalyst system. In this regard, gold complexes emerged as powerful catalysts as they offer unique reactivity profiles as compared to various other transition metal catalysts, primarily due to their salient electronic and geometrical features. Owing to the tunable soft π-acidic nature, gold catalysts not only evolved as superior contenders for catalyzing the reactions of alkynes, alkenes, and allenes but also, more intriguingly, have been found to provide divergent reaction pathways over other π-acid catalysts such as Ag, Pt, Pd, Rh, Cu, In, Sc, Hg, Zn, etc. The recent past has witnessed a renaissance in such examples wherein, by choosing gold catalysts over other transition metal catalysts or by fine-tuning the ligands, counteranions or oxidation states of the gold catalyst itself, a complete reactivity switch was observed. However, reviews documenting such examples are sporadic; as a result, most of the reports of this kind remained scattered in the literature, thereby hampering further development of this burgeoning field. By conceptualizing the idea of "Divergent Gold Catalysis (DGC)", this review aims to consolidate all such reports and provide a unified approach necessary to pave the way for further advancement of this exciting area. Based on the factors governing the divergence in product formation, an explicit classification of DGC has been provided. To gain a fundamental understanding of the divergence in observed reactivities and selectivities, the review is accompanied by mechanistic insights at appropriate places.
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Affiliation(s)
- Chetan C Chintawar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
| | - Amit K Yadav
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
| | - Anil Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
| | - Shashank P Sancheti
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
| | - Nitin T Patil
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
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12
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Kumar K, Singh B, Singh RP. A silver-catalyzed stereoselective domino cycloisomerization-vinylogous aldol reaction of ortho-alkynylbenzaldehydes with 3-alkylidene oxindoles: an entry to functionalized isochromenes. Chem Commun (Camb) 2020; 56:15153-15156. [PMID: 33210695 DOI: 10.1039/d0cc06273a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A silver tetrafluoroborate catalyzed domino cycloisomerization-vinylogous aldol addition sequence on a multifunctional substrate such as ortho-alkynylbenzaldehydes yielding functionalized 1H-isochromenes in a single step with high yield and excellent diastereoselectivity (>19 : 1) is described. The reaction was well tolerated by alkyl, aryl, and unsubstituted alkynylbenzaldehydes, and furnished selective 6-endo-dig adducts exclusively without loss in the regio- as well as diastereoselectivity.
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Affiliation(s)
- Krishna Kumar
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi-110016, India.
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13
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Le QT, Guo L, Lee SL, Lee J, Oh CH. Gold-Catalyzed Synthesis of Icetexane Cores: Short Synthesis of Taxamairin B and Rosmaridiphenol. Org Lett 2020; 22:9225-9228. [PMID: 33206542 DOI: 10.1021/acs.orglett.0c03415] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the short synthesis of two natural products, rosmaridiphenol and taxamairin B, from key intermediates 5a and 5b, which were prepared from enynals 8a and 9b, respectively, by using a gold-catalyzed cyclization reaction. This approach can be widely applied in the synthesis of [6,7,6]-fused tricyclic compounds found in many icetexane diterpenoids.
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Affiliation(s)
- Quynh Thuy Le
- Department of Chemistry and Center for New Directions in Organic Synthesis (CNOS), Hanyang University, Seongdong-gu, Seoul 04763, Korea
| | - Lihui Guo
- Department of Chemistry, Nankai University, Weijin Road, Tianjin 300071, China
| | - Seung Lyeol Lee
- Department of Chemistry and Center for New Directions in Organic Synthesis (CNOS), Hanyang University, Seongdong-gu, Seoul 04763, Korea
| | - Junseong Lee
- Department of Chemistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-757, Korea
| | - Chang Ho Oh
- Department of Chemistry and Center for New Directions in Organic Synthesis (CNOS), Hanyang University, Seongdong-gu, Seoul 04763, Korea
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14
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Pradhan TR, Park JK. An Overview of Water‐Mediated Alkyne Functionalization by Neighboring Group Participation of Carbonyl Groups. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000826] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Tapas R. Pradhan
- Department of Chemistry and Chemistry Institute for Functional Materials Pusan National University Busan 46241 Korea
| | - Jin Kyoon Park
- Department of Chemistry and Chemistry Institute for Functional Materials Pusan National University Busan 46241 Korea
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15
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Kumar R, Chandra A, Mir BA, Shukla G. Cu(I)-Catalyzed Oxygen and Nitrogen Nucleophiles Triggered Regioselective Synthesis of Furo/Pyrrolo-Annulated Quinolines. J Org Chem 2019; 84:10710-10723. [PMID: 31389233 DOI: 10.1021/acs.joc.9b00662] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cu(I)-catalyzed intramolecular annulation of o-ethynylquinoline-3-carbaldehydes leads to the synthesis of alkoxy/imidazole-substituted 1,3-dihydrofuro[3,4-b]quinolines via C-O and C-N bond formation. The scope of the reaction was further extended to o-ethynylquinoline-3-carbonitriles for the synthesis of alkoxy-substituted 3H-pyrrolo[3,4-b]quinolines using alcohols as nucleophiles. These reactions are regioselectively favoring the 5-exo-dig cyclizations in all the annulation processes.
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Affiliation(s)
- Ritush Kumar
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| | - Atish Chandra
- Centre of Biomedical Research , SGPGI Campus, Raibarely Road , Lucknow , Uttar Pradesh 226014 , India
| | - Bilal Ahmad Mir
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| | - Gaurav Shukla
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
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16
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Cai L, Chen Y, Cao H, Wei Q, Yang Y, Ouyang Q, Peng Y. Asymmetric Cyclization/Nucleophilic Tandem Reaction of o-Alkynylacetophenone with (Diazomethyl)phosphonate for the Synthesis of Functional Isochromenes. Org Lett 2019; 21:7597-7601. [DOI: 10.1021/acs.orglett.9b02864] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Liu Cai
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yuan Chen
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Hao Cao
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Qi Wei
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yi Yang
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Qin Ouyang
- College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Yungui Peng
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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17
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Zhang X, Wan X, Cong Y, Zhen X, Li Q, Zhang-Negrerie D, Du Y, Zhao K. Lactonization of 2-Alkynylbenzoates for the Assembly of Isochromenones Mediated by BF 3·Et 2O. J Org Chem 2019; 84:10402-10411. [PMID: 31328911 DOI: 10.1021/acs.joc.9b01601] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A general and efficient lactonization method of readily available 2-alkynylbenzoates affording biologically important isochromenones has been realized via a solely BF3·Et2O-mediated 6-endo-dig cyclization process under mild conditions. An alternative mechanistic pathway in which BF3·Et2O activates the carbonyl of the ester moiety, rather than the alkyne triple bond, was postulated on the basis of control experiment results. Gram-scale reaction and further application for the assembly of more complex molecules demonstrated the practicability of the protocol.
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Affiliation(s)
- Xiang Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Xintong Wan
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Ying Cong
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Xiaohua Zhen
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Qiao Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Daisy Zhang-Negrerie
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , China
| | - Kang Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
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18
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Yu K, Li M, Deng G, Liu C, Wang J, Liu Z, Zhang H, Yang X, Walsh PJ. An Efficient Route to Isochromene Derivatives via Cascade Radical Cyclization and Radical‐Radical Coupling. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900497] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Kaili Yu
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology Yunnan University Kunming 650091 People's Republic of China
| | - Minyan Li
- Department of Chemistry, Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation University of Pennsylvania Philadelphia PA 19104-6323 United States
| | - Guogang Deng
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology Yunnan University Kunming 650091 People's Republic of China
| | - Chunxiang Liu
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology Yunnan University Kunming 650091 People's Republic of China
| | - Jing Wang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology Yunnan University Kunming 650091 People's Republic of China
| | - Zhengfen Liu
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology Yunnan University Kunming 650091 People's Republic of China
| | - Hongbin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology Yunnan University Kunming 650091 People's Republic of China
| | - Xiaodong Yang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology Yunnan University Kunming 650091 People's Republic of China
| | - Patrick J. Walsh
- Department of Chemistry, Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation University of Pennsylvania Philadelphia PA 19104-6323 United States
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19
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Kaur N, Bhardwaj P, Devi M, Verma Y, Grewal P. Gold-catalyzed C–O bond forming reactions for the synthesis of six-membered O-heterocycles. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0920-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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20
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Affiliation(s)
- Longlong Li
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Dayun Huang
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Chengjin Shi
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Guobing Yan
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
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21
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Zhang Q, Wang J, Wei Y, Zhai H, Li Y. Stereoselective Synthesis of Spiro-2-oxabicyclo[2.2.2]octane Enabled by Ag(I)/ Brønsted Acid Relay Catalysis. Org Lett 2019; 21:1694-1698. [DOI: 10.1021/acs.orglett.9b00251] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Qingyu Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Jianping Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Yansheng Wei
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Hongbin Zhai
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Yun Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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22
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Kaur N. Synthesis of six- and seven-membered and larger heterocylces using Au and Ag catalysts. INORG NANO-MET CHEM 2019. [DOI: 10.1080/24701556.2019.1567544] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, Rajasthan, India
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23
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Guo M, Meng X, Zhao Y, Dong Y, Sun X, Tian L, Cao Z. Synthesis of 4-(1 H-isochromen-1-yl)isoquinolines through the silver-catalysed homodimerization of ortho-alkynylarylaldehydes and subsequent condensation of the 1,5-dicarbonyl motif with NH 3. RSC Adv 2019; 9:2703-2707. [PMID: 35520496 PMCID: PMC9059814 DOI: 10.1039/c8ra09269a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 01/07/2019] [Indexed: 12/29/2022] Open
Abstract
4-(1H-Isochromen-1-yl)isoquinoline derivatives were synthesized in high yields via the AgBF4-catalyzed self-reaction of ortho-alkynylarylaldehydes to give isochromene intermediates, followed by the dehydration of the 1,5-dicarbonyl motif with NH3. Compared with electron-rich aromatic substituents, this strategy can provide the desired isochromene products with an electron-deficient isoquinoline unit. The reactions feature simple experimental operations, mild reaction conditions and high product yields. We demonstrate a strategy that can provide isochromenes with an electron-deficient isoquinoline unit. The reactions feature simple operations, mild conditions and high yields.![]()
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Affiliation(s)
- Minghui Guo
- School of Chemistry and Chemical Engineering, Qufu Normal University Qufu 273165 P. R. China
| | - Xin Meng
- School of Chemistry and Chemical Engineering, Qufu Normal University Qufu 273165 P. R. China
| | - Yang Zhao
- School of Chemistry and Chemical Engineering, Qufu Normal University Qufu 273165 P. R. China
| | - Yuexia Dong
- School of Chemistry and Chemical Engineering, Qufu Normal University Qufu 273165 P. R. China
| | - Xuejun Sun
- School of Chemistry and Chemical Engineering, Qufu Normal University Qufu 273165 P. R. China
| | - Laijin Tian
- School of Chemistry and Chemical Engineering, Qufu Normal University Qufu 273165 P. R. China .,Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine Qufu 273165 P. R. China
| | - Ziping Cao
- School of Chemistry and Chemical Engineering, Qufu Normal University Qufu 273165 P. R. China .,Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine Qufu 273165 P. R. China
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24
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Zhao J, Xu W, Xie X, Sun N, Li X, Liu Y. Gold-Catalyzed Oxidative Cyclizations of {o-(Alkynyl)phenyl propargyl} Silyl Ether Derivatives Involving 1,2-Enynyl Migration: Synthesis of Functionalized 1H-Isochromenes and 2H-Pyrans. Org Lett 2018; 20:5461-5465. [DOI: 10.1021/acs.orglett.8b02380] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jidong Zhao
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Wei Xu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Xin Xie
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Ning Sun
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Xiangdong Li
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
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25
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Luo H, Liang R, Chen L, Jiang H, Zhu S. A silver-catalyzed three-component reaction via stabilized cation: synthesis of polysubstituted tetrahydronaphthols and tetrahydronaphthylamines. Org Chem Front 2018. [DOI: 10.1039/c7qo01122a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient method for the synthesis of polysubstituted tetrahydronaphthols and tetrahydronaphthylamines via a stabilized cation intermediate has been developed.
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Affiliation(s)
- Hejiang Luo
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Renxiao Liang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Lianfen Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
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26
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Wang D, Liu S, Lan XC, Paniagua A, Hao WJ, Li G, Tu SJ, Jiang B. Tunable Dimerization and Trimerization of β-Alkynyl Ketones via
Silver Catalysis for Accessing Spiro and Dispiro Compounds Containing 1H
-Isochromene. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700543] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dan Wang
- School of Chemistry and Material Science; Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; Jiangsu Normal University; Xuzhou 221116 People's Republic of China
| | - Shuai Liu
- School of Chemistry and Material Science; Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; Jiangsu Normal University; Xuzhou 221116 People's Republic of China
| | - Xin-Chan Lan
- School of Chemistry and Material Science; Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; Jiangsu Normal University; Xuzhou 221116 People's Republic of China
| | - Armando Paniagua
- Department of Chemistry and Biochemistry; Texas Tech University; Lubbock Texas 79409-1061 USA
| | - Wen-Juan Hao
- School of Chemistry and Material Science; Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; Jiangsu Normal University; Xuzhou 221116 People's Republic of China
| | - Guigen Li
- Department of Chemistry and Biochemistry; Texas Tech University; Lubbock Texas 79409-1061 USA
| | - Shu-Jiang Tu
- School of Chemistry and Material Science; Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; Jiangsu Normal University; Xuzhou 221116 People's Republic of China
| | - Bo Jiang
- School of Chemistry and Material Science; Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; Jiangsu Normal University; Xuzhou 221116 People's Republic of China
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27
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Silver-catalyzed tandem nucleophilic addition/cycloisomerization of ortho-alkynylbenzaldehydes: Regioselective synthesis of functionalized 1H-isochromene derivatives. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.07.051] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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28
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Li Y, Zhang Q, Wang H, Cheng B, Zhai H. Bioinspired Total Synthesis of (±)-Chaetophenol C Enabled by a Pd-Catalyzed Cascade Cyclization. Org Lett 2017; 19:4387-4390. [DOI: 10.1021/acs.orglett.7b02124] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yun Li
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
- State
Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Qingyu Zhang
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Hongyu Wang
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Bin Cheng
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Hongbin Zhai
- Laboratory
of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
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29
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Akkachairin B, Tummatorn J, Supantanapong N, Nimnual P, Thongsornkleeb C, Ruchirawat S. Silver-Catalyzed Cyclization of ortho-Carbonylarylacetylenols for the Synthesis of Dihydronaphthofurans. J Org Chem 2017; 82:3727-3740. [DOI: 10.1021/acs.joc.7b00198] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Bhornrawin Akkachairin
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology
(EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
| | - Jumreang Tummatorn
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology
(EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
- Laboratory
of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng
Phet 6, Laksi, Bangkok 10210, Thailand
| | - Nantamon Supantanapong
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology
(EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
| | - Phongprapan Nimnual
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology
(EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
| | - Charnsak Thongsornkleeb
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology
(EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
- Laboratory
of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng
Phet 6, Laksi, Bangkok 10210, Thailand
| | - Somsak Ruchirawat
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology
(EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
- Laboratory
of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng
Phet 6, Laksi, Bangkok 10210, Thailand
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30
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Sugita S, Takeda N, Tohnai N, Miyata M, Miyata O, Ueda M. Gold-Catalyzed [3+2]/Retro-[3+2]/[3+2] Cycloaddition Cascade Reaction of N
-Alkoxyazomethine Ylides. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611816] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Shoichi Sugita
- Kobe Pharmaceutical University; 4-19-1 Motoyamakita, Higashinada Kobe 658-8558 Japan
| | - Norihiko Takeda
- Kobe Pharmaceutical University; 4-19-1 Motoyamakita, Higashinada Kobe 658-8558 Japan
| | - Norimitsu Tohnai
- Department of Material and Life Science; Graduate School of Engineering; Osaka University; 2-1 Yamadaoka, Suita Osaka 565-0871 Japan
| | - Mikiji Miyata
- The Institute of Scientific and Industrial Research; Osaka University; 8-1 Mihogaoka, Ibaraki Osaka 567-0047 Japan
| | - Okiko Miyata
- Kobe Pharmaceutical University; 4-19-1 Motoyamakita, Higashinada Kobe 658-8558 Japan
| | - Masafumi Ueda
- Kobe Pharmaceutical University; 4-19-1 Motoyamakita, Higashinada Kobe 658-8558 Japan
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31
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Sugita S, Takeda N, Tohnai N, Miyata M, Miyata O, Ueda M. Gold-Catalyzed [3+2]/Retro-[3+2]/[3+2] Cycloaddition Cascade Reaction of N
-Alkoxyazomethine Ylides. Angew Chem Int Ed Engl 2017; 56:2469-2472. [DOI: 10.1002/anie.201611816] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/08/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Shoichi Sugita
- Kobe Pharmaceutical University; 4-19-1 Motoyamakita, Higashinada Kobe 658-8558 Japan
| | - Norihiko Takeda
- Kobe Pharmaceutical University; 4-19-1 Motoyamakita, Higashinada Kobe 658-8558 Japan
| | - Norimitsu Tohnai
- Department of Material and Life Science; Graduate School of Engineering; Osaka University; 2-1 Yamadaoka, Suita Osaka 565-0871 Japan
| | - Mikiji Miyata
- The Institute of Scientific and Industrial Research; Osaka University; 8-1 Mihogaoka, Ibaraki Osaka 567-0047 Japan
| | - Okiko Miyata
- Kobe Pharmaceutical University; 4-19-1 Motoyamakita, Higashinada Kobe 658-8558 Japan
| | - Masafumi Ueda
- Kobe Pharmaceutical University; 4-19-1 Motoyamakita, Higashinada Kobe 658-8558 Japan
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32
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Zhang S, Bai XT, Chen DY, Chen P, Zhang QQ, Wang YB. Water-assisted metal-free catalyzed cyclization of 2-alkynylarylketones: a facile approach to indenones. RSC Adv 2017. [DOI: 10.1039/c7ra05487d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
A facile approach starting from 2-alkynylarylketones was developed for the construction of functionalized indenones under metal-free and water-assisted conditions.
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Affiliation(s)
- Shuai Zhang
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- Institute of Fine Chemistry and Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Xue-Ting Bai
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- Institute of Fine Chemistry and Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Dan-Yun Chen
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- Institute of Fine Chemistry and Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Pei Chen
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- Institute of Fine Chemistry and Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Qian-Qian Zhang
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- Institute of Fine Chemistry and Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Yan-Bo Wang
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- Institute of Fine Chemistry and Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
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33
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Tomás-Mendivil E, Heinrich CF, Ortuno JC, Starck J, Michelet V. Gold-Catalyzed Access to 1H-Isochromenes: Reaction Development and Mechanistic Insight. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02636] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Eder Tomás-Mendivil
- PSL Research University, Chimie ParisTech-CNRS,
Institut de Recherche de Chimie Paris, 11 rue P. et M. Curie, 75005 Paris, France
| | - Clément F. Heinrich
- PSL Research University, Chimie ParisTech-CNRS,
Institut de Recherche de Chimie Paris, 11 rue P. et M. Curie, 75005 Paris, France
| | - Jean-Claude Ortuno
- Institut de Recherches
Servier, 125 Chemin de Ronde, 78290 Croissy-Seine, France
| | - Jérôme Starck
- Institut de Recherches
Servier, 125 Chemin de Ronde, 78290 Croissy-Seine, France
| | - Véronique Michelet
- PSL Research University, Chimie ParisTech-CNRS,
Institut de Recherche de Chimie Paris, 11 rue P. et M. Curie, 75005 Paris, France
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34
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Yang Y, Bai B, Jin M, Xu Z, Zhang J, Li W, Xu W, Wang X, Yin C. Fluorescent imaging of Au3+ in living cells with two new high selective Au3+ probes. Biosens Bioelectron 2016; 86:939-943. [DOI: 10.1016/j.bios.2016.07.112] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 06/14/2016] [Accepted: 07/29/2016] [Indexed: 01/22/2023]
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35
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Ruch AA, Kong F, Nesterov VN, Slaughter LM. Tetracyclic dihydronaphthalene derivatives via gold-catalyzed aminative homodimerization of ortho-alkynylbenzaldehydes. Chem Commun (Camb) 2016; 52:14133-14136. [DOI: 10.1039/c6cc08132k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
o-Alkynylbenzaldehydes undergo gold-catalyzed aminative homodimerization via a domino 6-endo-dig/hydroamination/[4+2] cycloaddition reaction sequence, furnishing tetracyclic products that incorporate medicinally relevant moieties.
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Affiliation(s)
- Aaron A. Ruch
- Department of Chemistry
- University of North Texas
- Denton
- USA
| | - Fanji Kong
- Department of Chemistry
- University of North Texas
- Denton
- USA
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36
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Raviola C, Protti S, Ravelli D, Fagnoni M. (Hetero)aromatics from dienynes, enediynes and enyne–allenes. Chem Soc Rev 2016; 45:4364-90. [DOI: 10.1039/c6cs00128a] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Recent advances in the synthesis of (hetero)aromatics starting from polyenes, such as dienynes, enediynes and enyne–allenes, are discussed.
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37
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Tomás-Mendivil E, Starck J, Ortuno JC, Michelet V. Synthesis of Functionalized 1H-Isochromene Derivatives via a Au-Catalyzed Domino Cycloisomerization/Reduction Approach. Org Lett 2015; 17:6126-9. [DOI: 10.1021/acs.orglett.5b03146] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Eder Tomás-Mendivil
- Chimie
ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie Paris (IRCP), F-75005 Paris, France
| | - Jérôme Starck
- Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy-Seine, France
| | - Jean-Claude Ortuno
- Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy-Seine, France
| | - Véronique Michelet
- Chimie
ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie Paris (IRCP), F-75005 Paris, France
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38
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Matsuda T, Nishida Y, Yamanaka K, Sakurai Y. Synthesis of 2-acyl-1-naphthols by gold-catalyzed oxidative cyclization of 2-alkenylphenyl alkynyl ketones. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.12.041] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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39
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Xu Q, Gu P, Wang F, Shi M. Selectfluor promoted NHC–oxazoline gold(i) complex catalyzed cycloaddition/oxidation reaction of enynones with alkenes. Org Chem Front 2015. [DOI: 10.1039/c5qo00155b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Two kinds of ortho- and meta-oxazoline substituted NHC–gold(i) complexes have been synthesized. These gold complexes could react with Selectfluor to give ionic chelated NHC–oxazoline gold(i) complexes which could smoothly catalyze the cycloaddition/oxidation reaction of enynones with alkene.
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Affiliation(s)
- Qin Xu
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Peng Gu
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Feijun Wang
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
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40
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Cao Z, Zhang H, Zhang X, Zhang L, Meng X, Chen G, Zhao XE, Sun X, You J. Gold-catalyzed tandem cycloisomerization/Petasis–Ferrier rearrangement: a direct route to 3-alkoxyindanones from enynals and alcohols. RSC Adv 2015. [DOI: 10.1039/c5ra24541a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
A method to prepare 3-alkoxyindanones by gold-catalyzed tandem cycloisomerization/Petasis–Ferrier rearrangement of ortho-ethynylarylaldehydes with alcohols is described. The reaction also offers a synthetic route to 3-alkoxylcyclopentenones.
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Affiliation(s)
- Ziping Cao
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
| | - Huaqing Zhang
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
| | - Xiaoxiang Zhang
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- P. R. China
| | - Ludan Zhang
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
| | - Xin Meng
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
| | - Guang Chen
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
| | - Xian-En Zhao
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
| | - Xuejun Sun
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
| | - Jinmao You
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
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41
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Mariaule G, Newsome G, Toullec PY, Belmont P, Michelet V. Silver-Catalyzed Domino Hydroarylation/Cycloisomerization Reactions of ortho-Alkynylbenzaldehydes: An Entry to Functionalized Isochromene Derivatives. Org Lett 2014; 16:4570-3. [DOI: 10.1021/ol5021256] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Gaëlle Mariaule
- Institut Curie, UMR CNRS 176, 26 rue d’Ulm, 75005 Paris, France
- Université Paris Descartes, Faculté de Pharmacie
de Paris, UMR CNRS 8638, 4 avenue de l’Observatoire, 75006 Paris, France
| | - Gregory Newsome
- PSL Research University, Chimie ParisTech-CNRS,
Institut de Recherche de Chimie Paris, 11 rue P. et M. Curie, 75005 Paris, France
| | - Patrick Y. Toullec
- PSL Research University, Chimie ParisTech-CNRS,
Institut de Recherche de Chimie Paris, 11 rue P. et M. Curie, 75005 Paris, France
| | - Philippe Belmont
- Institut Curie, UMR CNRS 176, 26 rue d’Ulm, 75005 Paris, France
- Université Paris Descartes, Faculté de Pharmacie
de Paris, UMR CNRS 8638, 4 avenue de l’Observatoire, 75006 Paris, France
| | - Véronique Michelet
- PSL Research University, Chimie ParisTech-CNRS,
Institut de Recherche de Chimie Paris, 11 rue P. et M. Curie, 75005 Paris, France
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42
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Guo B, Zheng L, Yang L, Hua R. Synthesis of Chrysene Derivatives via Copper-Catalyzed One-Pot Dimerization of 2-Alkynyl-1-acetylbenzenes. J Org Chem 2014; 79:4352-7. [DOI: 10.1021/jo500182k] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Biao Guo
- Department of Chemistry, Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Liyao Zheng
- Department of Chemistry, Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Lichen Yang
- Department of Chemistry, Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Ruimao Hua
- Department of Chemistry, Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China
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43
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Dell’Acqua M, Castano B, Cecchini C, Pedrazzini T, Pirovano V, Rossi E, Caselli A, Abbiati G. Mild Regiospecific Synthesis of 1-Alkoxy-isochromenes Catalyzed by Well-Defined [Silver(I)(Pyridine-Containing Ligand)] Complexes. J Org Chem 2014; 79:3494-505. [DOI: 10.1021/jo5002559] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Monica Dell’Acqua
- Dipartimento
di Scienze Farmaceutiche, Sezione di Chimica Generale e Organica “A.
Marchesini”, Università degli Studi di Milano, Via
Venezian, 21, 20133 Milano, Italy
| | - Brunilde Castano
- Dipartimento
di Chimica, Università degli Studi di Milano, Via Golgi,
19, 20133 Milano, Italy
| | - Clara Cecchini
- Dipartimento
di Scienze Farmaceutiche, Sezione di Chimica Generale e Organica “A.
Marchesini”, Università degli Studi di Milano, Via
Venezian, 21, 20133 Milano, Italy
| | - Tommaso Pedrazzini
- Dipartimento
di Chimica, Università degli Studi di Milano, Via Golgi,
19, 20133 Milano, Italy
| | - Valentina Pirovano
- Dipartimento
di Scienze Farmaceutiche, Sezione di Chimica Generale e Organica “A.
Marchesini”, Università degli Studi di Milano, Via
Venezian, 21, 20133 Milano, Italy
| | - Elisabetta Rossi
- Dipartimento
di Scienze Farmaceutiche, Sezione di Chimica Generale e Organica “A.
Marchesini”, Università degli Studi di Milano, Via
Venezian, 21, 20133 Milano, Italy
| | - Alessandro Caselli
- Dipartimento
di Chimica, Università degli Studi di Milano, Via Golgi,
19, 20133 Milano, Italy
| | - Giorgio Abbiati
- Dipartimento
di Scienze Farmaceutiche, Sezione di Chimica Generale e Organica “A.
Marchesini”, Università degli Studi di Milano, Via
Venezian, 21, 20133 Milano, Italy
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44
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Teo WT, Rao W, Ng CJH, Koh SWY, Chan PWH. Gold-Catalyzed Benzannulation of 5-Hydroxy-3-oxoalk-6-ynoate Esters to o-Phenolic Esters. Org Lett 2014; 16:1248-51. [DOI: 10.1021/ol5002363] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Wan Teng Teo
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Weidong Rao
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Charmaine Jia Huan Ng
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Shaun Wei Yong Koh
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Philip Wai Hong Chan
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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45
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Malhotra D, Hammond GB, Xu B. Ligand design in gold catalysis and chemistry of gold-oxonium intermediates. Top Curr Chem (Cham) 2014; 357:1-23. [PMID: 25707612 DOI: 10.1007/128_2014_592] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Gold catalysis is considered one of the most important breakthroughs in organic synthesis during the last decade. Many gold-catalyzed reactions suffer from high catalyst loading, which is a serious limitation on the application of gold catalysis in larger scale synthesis. Because ligands play a major role in the tuning of reactivity of transition metal catalysts, there has been an increased effort on rationally understanding ligand effects in gold catalysis and using a rational ligand design to achieve higher efficiency. In the first part of this chapter, selected examples of ligand design in gold catalysis are discussed. In the second part, the chemistry of gold-oxonium intermediate is examined. An oxonium intermediate is generated when a oxygen nucleophile (ketone, aldehyde, or ether) attacks a cationic gold-activated multiple bond. This oxonium intermediate, being a highly energetic species, has the potential to undergo further transformations such as electron transfer/rearrangement/protodeauration to form diverse products.
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Affiliation(s)
- Deepika Malhotra
- Department of Chemistry, University of Louisville, Louisville, KY, 40292, USA
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46
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Gawande SD, Kavala V, Zanwar MR, Kuo CW, Huang HN, He CH, Kuo TS, Yao CF. Molecular Iodine-Mediated Cascade Reaction of 2-Alkynylbenzaldehyde and Indole: An Easy Access to Tetracyclic Indoloazulene Derivatives. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300421] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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47
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Long Y, She Z, Liu X, Chen Y. Synthesis of 1-Aminoisoquinolines by Gold(III)-Mediated Domino Reactions from 2-Alkynylbenzamides and Ammonium Acetate. J Org Chem 2013; 78:2579-88. [DOI: 10.1021/jo302794z] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yuhua Long
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Flushing,
New York 11367, United States
| | - Zhigang She
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Flushing,
New York 11367, United States
| | - Xiaochen Liu
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Flushing,
New York 11367, United States
| | - Yu Chen
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, 65-30 Kissena Boulevard, Flushing,
New York 11367, United States
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48
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Malhotra D, Liu LP, Mashuta MS, Hammond GB. Gold-Catalyzed Annulations of 2-Alkynyl Benzaldehydes with Vinyl Ethers: Synthesis of Dihydronaphthalene, Isochromene, and Bicyclo[2.2.2]octane Derivatives. Chemistry 2013; 19:4043-50. [DOI: 10.1002/chem.201203841] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2012] [Revised: 12/11/2012] [Indexed: 01/01/2023]
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49
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Guo R, Li KN, Gong LZ. Catalytic cascade hydroalkoxylation/isomerization/[4 + 2] cycloaddition using enyne alcohols as latent dienes or dienophiles. Org Biomol Chem 2013; 11:6707-12. [DOI: 10.1039/c3ob41611a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Cikotiene I, Buksnaitiene R. Study on the Reactions of Acetylenic Aldehydes with Dimethyl Phosphite in Basic Media: Phosphonate-Phosphate Rearrangementversus5-exo-dig Cyclization Reactions. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200276] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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