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Tobrman T, Oeser P, Petrenko A, Edlová T, Čubiňák M, Koudelka J. Halocyclobutanol Dehydration En Route to Halocyclobutenes. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1794-0685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractA new method for the preparation of halocyclobutenes is described. The developed process involves the dehydration of halocyclobutanols by using tetrafluoroboric acid–diethyl ether complex in dichloromethane at room temperature. The process allows for high yields of halocyclobutenes to be achieved by using alcohols that do not trigger the formation of isomeric allylic halides.
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2
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Il’ina IV, Patrusheva OS, Korchagina DV, Volcho KP, Salakhutdinov NF. Synthesis of Fluorinated Octahydro-2H-Chromenes in the Presence of the BF3·Et2O–H2O Catalytic System. Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02743-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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3
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Lu Z, Bajwa BS, Okoromoba OE, Hammond GB, Xu B. Multifaceted Ion Exchange Resin-Supported Hydrogen Fluoride: A Path to Flow Hydrofluorination. GREEN CHEMISTRY : AN INTERNATIONAL JOURNAL AND GREEN CHEMISTRY RESOURCE : GC 2019; 21:2224-2228. [PMID: 31402845 PMCID: PMC6688644 DOI: 10.1039/c8gc03166e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A solid anhydrous hydrogen fluoride equivalent was prepared by mixing HF gas with an inexpensive anion exchange resin (A26-HF, HF content 30% wt/wt).
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Affiliation(s)
- Zhichao Lu
- Dr. Z. Lu, Dr. O. E. Okoromoba, Prof. Gerald B. Hammond, Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, USA
| | - Bhvandip S. Bajwa
- Mr. B. S. Bajwa Department of Chemistry, California State University, Fresno, California 93740, USA
| | - Otome E. Okoromoba
- Dr. Z. Lu, Dr. O. E. Okoromoba, Prof. Gerald B. Hammond, Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, USA
| | - Gerald B. Hammond
- Dr. Z. Lu, Dr. O. E. Okoromoba, Prof. Gerald B. Hammond, Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, USA
| | - Bo Xu
- Prof. 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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4
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Hazarika N, Sarmah B, Bordoloi M, Phukan P, Baishya G. Diastereoselective synthesis of tetrahydropyrans via Prins–Ritter and Prins–arylthiolation cyclization reactions. Org Biomol Chem 2017; 15:2003-2012. [DOI: 10.1039/c6ob02692c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly diastereoselective Prins–Ritter and Prins-arylthiolation cyclization reactions have been developed for the synthesis of two novel classes of tetrahydropyran derivatives.
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Affiliation(s)
- Nabajyoti Hazarika
- Chemical Science & Technology Division
- CSIR-North East Institute of Science and Technology
- Jorhat-785006
- India
- Department of Chemistry
| | - Barnali Sarmah
- Chemical Science & Technology Division
- CSIR-North East Institute of Science and Technology
- Jorhat-785006
- India
- Department of Chemistry
| | - Manobjyoti Bordoloi
- Chemical Science & Technology Division
- CSIR-North East Institute of Science and Technology
- Jorhat-785006
- India
| | - Prodeep Phukan
- Department of Chemistry
- Gauhati University
- Guwahati-14
- India
| | - Gakul Baishya
- Chemical Science & Technology Division
- CSIR-North East Institute of Science and Technology
- Jorhat-785006
- India
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Erickson LW, Lucas EL, Tollefson EJ, Jarvo ER. Nickel-Catalyzed Cross-Electrophile Coupling of Alkyl Fluorides: Stereospecific Synthesis of Vinylcyclopropanes. J Am Chem Soc 2016; 138:14006-14011. [DOI: 10.1021/jacs.6b07567] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Lucas W. Erickson
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Erika L. Lucas
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Emily J. Tollefson
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Elizabeth R. Jarvo
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
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6
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Sarmah B, Baishya G, Das PJ. First Example of a Four-Component Prins Cyclization Reaction: Diastereoselective Synthesis of Dithiocarbamate Derived Octahydro-2H-chromenes. ChemistrySelect 2016. [DOI: 10.1002/slct.201600539] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Barnali Sarmah
- Natural Products Chemistry Group; Chemical Science & Technology Division; CSIR-North East Institute of Science and Technology Jorhat; 785006 India
| | - Gakul Baishya
- Natural Products Chemistry Group; Chemical Science & Technology Division; CSIR-North East Institute of Science and Technology Jorhat; 785006 India
| | - Pranab J. Das
- Department of Chemistry; Gauhati University; Guwahati 781014 India
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Okoromoba OE, Hammond GB, Xu B. Preparation of Fluorinated Tetrahydropyrans and Piperidines using a New Nucleophilic Fluorination Reagent DMPU/HF. Org Lett 2015; 17:3975-7. [PMID: 26262944 DOI: 10.1021/acs.orglett.5b01919] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
DMPU/HF (HF content 65 wt %/wt) is an ideal nucleophilic fluorination reagent for the diastereoselective synthesis of substituted 4-fluorotetrahydropyrans and 4-fluoropiperidines via a fluoro-Prins reaction. When compared to classical nucleophilic fluorination reagents like pyridine/HF, DMPU/HF gives both higher yields and better diastereoselectivity.
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Affiliation(s)
- Otome E Okoromoba
- †Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Gerald B Hammond
- †Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Bo Xu
- ‡College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
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8
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Champagne PA, Desroches J, Hamel JD, Vandamme M, Paquin JF. Monofluorination of Organic Compounds: 10 Years of Innovation. Chem Rev 2015; 115:9073-174. [PMID: 25854146 DOI: 10.1021/cr500706a] [Citation(s) in RCA: 685] [Impact Index Per Article: 68.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Pier Alexandre Champagne
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Justine Desroches
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Jean-Denys Hamel
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Mathilde Vandamme
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Jean-François Paquin
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
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Zhao S, Zhang X, Zhang Y, Yang H, Huang Y, Zhang K, Du T. A Ce(OTf)3/PyBox catalyzed enantioselective Hosomi–Sakurai reaction of aldehydes with allyltrimethylsilane. NEW J CHEM 2015. [DOI: 10.1039/c5nj01488c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
An approach to the efficient synthesis of enantioselective homoallylic alcohols has been developed by the use of a catalytic amount of a cerium/PyBox complex.
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Affiliation(s)
- Song Zhao
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education & Xinjiang Uyghur Autonomous Region
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
| | - Xulong Zhang
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education & Xinjiang Uyghur Autonomous Region
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
| | - Yuwei Zhang
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education & Xinjiang Uyghur Autonomous Region
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
| | - Huanhuan Yang
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education & Xinjiang Uyghur Autonomous Region
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
| | - Yan Huang
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education & Xinjiang Uyghur Autonomous Region
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
| | - Kui Zhang
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education & Xinjiang Uyghur Autonomous Region
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
| | - Ting Du
- Key Laboratory of Oil & Gas Fine Chemicals
- Ministry of Education & Xinjiang Uyghur Autonomous Region
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi 830046
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Sarmah B, Baishya G, Baruah RK. Prins-Arylthiolation Reaction on Terpenoids: Diastereoselective Synthesis of 4-Arylthiooctahydro-2H-chromenes. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403080] [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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11
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Baishya G, Hazarika N, Sarmah B. HBF4·OEt2: An efficient fluorinated acid catalyst for the one-pot synthesis of secondary and tertiary N-homoallylic carbamates. J Fluor Chem 2014. [DOI: 10.1016/j.jfluchem.2014.06.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Cresswell AJ, Davies SG, Roberts PM, Thomson JE. Beyond the Balz-Schiemann reaction: the utility of tetrafluoroborates and boron trifluoride as nucleophilic fluoride sources. Chem Rev 2014; 115:566-611. [PMID: 25084541 DOI: 10.1021/cr5001805] [Citation(s) in RCA: 127] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Alexander J Cresswell
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford , Mansfield Road, Oxford OX1 3TA, United Kingdom
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Cresswell AJ, Davies SG, Lee JA, Morris MJ, Roberts PM, Thomson JE. Diastereodivergent Hydroxyfluorination of Cyclic and Acyclic Allylic Amines: Synthesis of 4-Deoxy-4-fluorophytosphingosines. J Org Chem 2012; 77:7262-81. [DOI: 10.1021/jo301056r] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Alexander J. Cresswell
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA,
U.K
| | - Stephen G. Davies
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA,
U.K
| | - James A. Lee
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA,
U.K
| | - Melloney J. Morris
- Syngenta, Jealott’s Hill International Research Centre, Bracknell,
Berkshire RG42 6EY, U.K
| | - Paul M. Roberts
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA,
U.K
| | - James E. Thomson
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA,
U.K
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Ahmed N, Konduru NK. Efficient, highly diastereoselective MS 4 Å-promoted one-pot, three-component synthesis of 2,6-disubstituted-4-tosyloxytetrahydropyrans via Prins cyclization. Beilstein J Org Chem 2012; 8:177-85. [PMID: 22423285 PMCID: PMC3302078 DOI: 10.3762/bjoc.8.19] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Accepted: 12/23/2011] [Indexed: 12/03/2022] Open
Abstract
A simple, efficient and highly diastereoselective one-pot three-component synthesis of functionalized 2,6-disubstituted-4-tosyloxytetrahydropyrans was performed. The synthesis features an optimized Prins cyclization in which an aromatic homoallylic alcohol, an aromatic/aliphatic aldehyde, and p-toluenesulfonic acid (catalyst and reagent) are reacted in the presence of molecular sieves (MS) 4 Å at reflux in dichloromethane to afford excellent yields (72–96%) within short reaction times (20–90 min). The MS 4 Å-promoted synthesis proved to be versatile enough to provide an array of symmetrical and unsymmetrical tetrahydropyran derivatives in economical manner. Furthermore, cleavage of the 4-tosyl group under mild conditions afforded 4-hydroxytetrahydropyran in excellent yields (95–96%).
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Affiliation(s)
- Naseem Ahmed
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee- 247 667, Uttarakhand, India
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15
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Veeraraghavan Ramachandran P, Gagare PD. One-pot allyl-/crotylboration-Prins cyclization of aldehydes. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.06.043] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Subba Reddy B, Sivasankar Reddy N, Madan C, Yadav J. HBF4·OEt2 as a mild and versatile reagent for the Ritter amidation of olefins: a facile synthesis of secondary amides. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.07.032] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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