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1
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Lin Q, Ma G, Gong H. Ni-Catalyzed Formal Cross-Electrophile Coupling of Alcohols with Aryl Halides. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04239] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Quan Lin
- School of Materials Science and Engineering, Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China
| | - Guobin Ma
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China
| | - Hegui Gong
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China
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Gharpure SJ, Vishwakarma DS, Nanda SK. Lewis Acid Mediated “endo-dig” Hydroalkoxylation–Reduction on Internal Alkynols for the Stereoselective Synthesis of Cyclic Ethers and 1,4-Oxazepanes. Org Lett 2017; 19:6534-6537. [DOI: 10.1021/acs.orglett.7b03241] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Santosh J. Gharpure
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
| | | | - Santosh K. Nanda
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
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Das TK, Mondal S, Gonnade RG, Biju AT. Base-Free and Catalyst-Free Synthesis of Functionalized Dihydrobenzoxazoles via Vinylogous Carbonate to Carbamate Rearrangement. Org Lett 2017; 19:5597-5600. [PMID: 28968106 DOI: 10.1021/acs.orglett.7b02733] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
An unexpected, catalyst-free, and base-free intramolecular cyclization of N-aryloxyacrylate aldimines, under thermal conditions leading to the synthesis of functionalized dihydrobenzoxazoles, is reported. The reaction features a unique rearrangement of vinylogous carbonates to vinylogous carbamates resulting in a new carbon-oxygen and carbon-nitrogen bond construction. The reaction tolerates a broad range of functional groups and the desired products are formed in moderate to good yields.
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Affiliation(s)
- Tamal Kanti Das
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110020, India
| | - Santigopal Mondal
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110020, India
| | | | - Akkattu T Biju
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110020, India
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4
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de la Torre A, Cuyamendous C, Bultel-Poncé V, Durand T, Galano JM, Oger C. Recent advances in the synthesis of tetrahydrofurans and applications in total synthesis. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.06.076] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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5
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Cao D, Zhang J, Wang H, Zhao G. Dipeptide-Derived Multifunctional Quaternary Phosphonium Salt Catalyzed Asymmetric Cyclizations via a Tandem Michael Addition/SN2 Sequence. Chemistry 2015; 21:9998-10002. [DOI: 10.1002/chem.201501806] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Indexed: 12/17/2022]
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6
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Gharpure SJ, Shelke YG, Reddy SRB. Synthesis of isochromene derivatives using an intramolecular benzylic C(sp3)–C(sp2) bond forming Heck reaction on vinylogous carbonates. RSC Adv 2014. [DOI: 10.1039/c4ra08421g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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7
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Gharpure SJ, Prasad JVK, Bera K. Tandem Nucleophilic Addition/Oxa-Michael Reaction for the Synthesis ofcis-2,6-Disubstituted Tetrahydropyrans. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402199] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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8
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Gharpure SJ, Prasath V. Stereoselective synthesis of C-fused pyranoindoles, pyranobenzofurans and pyranobenzothiophene scaffolds using oxa-Pictet–Spengler type reaction of vinylogous carbonates. Org Biomol Chem 2014; 12:7397-409. [DOI: 10.1039/c4ob01387e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
C-fused pyranoheterocycles can be assembled in a highly diastereoselective manner using an intramolecular oxa-Pictet–Spengler type reaction of vinylogous carbonates.
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Affiliation(s)
- Santosh J. Gharpure
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076, India
| | - V. Prasath
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076, India
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9
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Gharpure SJ, Reddy SRB. Stereoselective Synthesis of Benzoxepines through Tandem Alkylation/Michael Addition to Vinylogous Carbonates. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300267] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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10
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Gharpure SJ, Prasad JVK. Stereoselective Synthesis of Substituted 1,4-Oxazepanes by Intramolecular Reductive Etherification. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300135] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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11
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Gharpure SJ, Niranjana P, Porwal SK. Stereoselective Synthesis of Oxa- and Aza-Angular Triquinanes Using Tandem Radical Cyclization to Vinylogous Carbonates and Carbamates. Org Lett 2012; 14:5476-9. [DOI: 10.1021/ol302557a] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Santosh J. Gharpure
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India, and Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - P. Niranjana
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India, and Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Suheel K. Porwal
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India, and Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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Shainyan BA, Moskalik MY, Astakhova VV. Oxidative addition of trifluoromethanesulfonamide to vinylcyclohexane and p-chlorostyrene. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2012. [DOI: 10.1134/s1070428012070056] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Tong BMK, Chen H, Chong SY, Heng YL, Chiba S. Formal [4 + 1]- and [5 + 1]-Annulation by an SN2–Conjugate Addition Sequence: Stereoselective Synthesis of Highly Substituted Carbocycles. Org Lett 2012; 14:2826-9. [DOI: 10.1021/ol301044e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Benny Meng Kiat Tong
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Hui Chen
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Sin Yee Chong
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Yi Li Heng
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Shunsuke Chiba
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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Chandan N, Thompson AL, Moloney MG. Rapid synthesis of substituted pyrrolines and pyrrolidines by nucleophilic ring closure at activated oximes. Org Biomol Chem 2012; 10:7863-8. [DOI: 10.1039/c2ob26423d] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Gharpure SJ, Vijayasree U, Reddy SRB. Stereoselective synthesis and applications of nitrogen substituted donor–acceptor cyclopropanes (N-DACs) in the divergent synthesis of azacycles. Org Biomol Chem 2012; 10:1735-8. [DOI: 10.1039/c2ob06591f] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Stereoselective synthesis of 2,3-disubstituted dihydrobenzofuran using alkyne Prins type cyclization to vinylogous carbonates. J CHEM SCI 2011. [DOI: 10.1007/s12039-011-0162-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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17
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Gharpure SJ, Prasad JVK. Stereoselective Synthesis of C-Substituted Morpholine Derivatives using Reductive Etherification Reaction: Total Synthesis of Chelonin C. J Org Chem 2011; 76:10325-31. [DOI: 10.1021/jo201975b] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Santosh J. Gharpure
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-600036, Tamil Nadu, India
| | - J. V. K. Prasad
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-600036, Tamil Nadu, India
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18
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Gharpure SJ, Nanda LN, Shukla MK. Enantioselective Total Synthesis of (+)-Hagen's Gland Lactones. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101328] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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19
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Gharpure SJ, Porwal SK. Alkyl radical cyclization to vinylogous carbonates for the stereoselective synthesis of unsymmetrical dioxa-cage compounds: effect of conformation on the rate of cyclization versus reduction. Tetrahedron 2011. [DOI: 10.1016/j.tet.2010.11.098] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Gharpure SJ, Sathiyanarayanan AM. Stereoselective synthesis of oxazino[4,3-a]indoles employing the oxa-Pictet–Spengler reaction of indoles bearing N-tethered vinylogous carbonate. Chem Commun (Camb) 2011; 47:3625-7. [DOI: 10.1039/c0cc05558a] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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