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1
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Prakash M, Lodhi R, Samanta S. Substrate-Controlled Domino Reaction of N-Sulfonyl Ketimines with 2-Aroyl-1-chlorocyclopropanecarboxylates: Access to Cyclopenta[c]chromenes and Benzo[f]cyclopenta[d][1,2]thiazepine Dioxides. J Org Chem 2021; 86:6721-6733. [DOI: 10.1021/acs.joc.1c00459] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Meher Prakash
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, Madhya Pradesh 453552, India
| | - Rajni Lodhi
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, Madhya Pradesh 453552, India
| | - Sampak Samanta
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, Madhya Pradesh 453552, India
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2
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Sasikumar P, Prabha B, Chand SS, Aswathy M, Madhukrishnan M, Preethanuj P, Suresh E, Jaroschik F, Radhakrishnan KV. Lewis Acid Promoted Regioselective Double Hydro(hetero)arylation of 6,6′-Dialkyl-Substituted Pentafulvenes: A Facile Approach to Bisindole Derivatives. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Parameswaran Sasikumar
- Organic Chemistry section; National Institute for Interdisciplinary Science and Technology (CSIR); 695019 Thiruvananthapuram India
| | - Bernard Prabha
- Organic Chemistry section; National Institute for Interdisciplinary Science and Technology (CSIR); 695019 Thiruvananthapuram India
| | - Sarngadharan Sarath Chand
- Organic Chemistry section; National Institute for Interdisciplinary Science and Technology (CSIR); 695019 Thiruvananthapuram India
| | - Maniyamma Aswathy
- Organic Chemistry section; National Institute for Interdisciplinary Science and Technology (CSIR); 695019 Thiruvananthapuram India
| | - Murali Madhukrishnan
- Organic Chemistry section; National Institute for Interdisciplinary Science and Technology (CSIR); 695019 Thiruvananthapuram India
| | - Preethalayam Preethanuj
- Organic Chemistry section; National Institute for Interdisciplinary Science and Technology (CSIR); 695019 Thiruvananthapuram India
| | | | - Florian Jaroschik
- Institut de Chimie Moleculaire de Reims CNRS (UMR 7312); Université de Reims; 51687 Reims Cedex 2 France
| | - Kokkuvayil Vasu Radhakrishnan
- Organic Chemistry section; National Institute for Interdisciplinary Science and Technology (CSIR); 695019 Thiruvananthapuram India
- Academy of Scientific and Innovative Research (AcSIR); Thiruvananthapuram Kerala India
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3
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Preethalayam P, Krishnan KS, Thulasi S, Chand SS, Joseph J, Nair V, Jaroschik F, Radhakrishnan KV. Recent Advances in the Chemistry of Pentafulvenes. Chem Rev 2017; 117:3930-3989. [DOI: 10.1021/acs.chemrev.6b00210] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Preethanuj Preethalayam
- Organic
Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, Kerala, India
| | - K. Syam Krishnan
- Organic
Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, Kerala, India
| | - Sreeja Thulasi
- Organic
Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, Kerala, India
| | - S. Sarath Chand
- Organic
Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, Kerala, India
| | - Jomy Joseph
- Institut de Chimie Moléculaire de Reims CNRS (UMR 7312) and Université de Reims Champagne-Ardenne, Reims 51687 Cedex 2, France
| | - Vijay Nair
- Organic
Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, Kerala, India
| | - Florian Jaroschik
- Institut de Chimie Moléculaire de Reims CNRS (UMR 7312) and Université de Reims Champagne-Ardenne, Reims 51687 Cedex 2, France
| | - K. V. Radhakrishnan
- Organic
Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, Kerala, India
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4
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Chand SS, Gopalan G, Santhini PV, Preethanuj P, John J, Harakat D, Jaroschik F, Radhakrishnan KV. Lewis Acid Catalyzed Regioselective Hydroheteroarylation of Pentafulvenes. Org Lett 2016; 18:964-7. [PMID: 26863099 DOI: 10.1021/acs.orglett.6b00047] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A diverse approach toward the catalytic regioselective nucleophilic addition of nitrogen heterocycles to Lewis acid activated pentafulvenes has been established. The developed protocol introduces pentafulvenes as nonsymmetrical alkenes for the hydroheteroarylation reaction, providing alkylidenecyclopentenylation at the C-3 position of indoles and the C-2 position of pyrrole.
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Affiliation(s)
- S Sarath Chand
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110001, India.,Organic Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR) , Trivandrum 695019, India
| | - Greeshma Gopalan
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110001, India.,Organic Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR) , Trivandrum 695019, India
| | - P V Santhini
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110001, India.,Organic Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR) , Trivandrum 695019, India
| | - P Preethanuj
- Organic Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR) , Trivandrum 695019, India
| | - Jubi John
- Organic Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR) , Trivandrum 695019, India
| | - Dominique Harakat
- Institut de Chimie Moléculaire de Reims CNRS (UMR 7312), Université de Reims , Reims 51687 Cedex 2, France
| | - Florian Jaroschik
- Institut de Chimie Moléculaire de Reims CNRS (UMR 7312), Université de Reims , Reims 51687 Cedex 2, France
| | - K V Radhakrishnan
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110001, India.,Organic Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR) , Trivandrum 695019, India
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5
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Sun R, Liu J, Yang S, Chen M, Sun N, Chen H, Xie X, You X, Li S, Liu Y. Cp2TiCl2-catalyzed cis-hydroalumination of propargylic amines with Red-Al: stereoselective synthesis of Z-configured allylic amines. Chem Commun (Camb) 2015; 51:6426-9. [PMID: 25765939 DOI: 10.1039/c5cc00950b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A titanium-catalyzed cis-hydroalumination of propargylic amines with Red-Al is described, which provides an efficient way to produce Z-configured allylic amines in good to excellent yields with high stereoselectivity and good regioselectivity. The hydride-bridged Al/Ti bimetallic species may act as a real catalyst in this reaction.
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Affiliation(s)
- Renhong Sun
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China.
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6
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Joseph J, Preethalayam P, Radhakrishnan KV, Jaroschik F, Vasse JL. Titanium and Zirconium Hydride-Catalyzed Regioselective Isomerization of 1,4-Dihydrofulvenes: Access to 1-Substituted 1,2-Dihydrofulvenes. Org Lett 2015; 17:6202-5. [DOI: 10.1021/acs.orglett.5b03195] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jomy Joseph
- Institut de Chimie Moléculaire de Reims, CNRS
(UMR 7312), Université de Reims, 51687 Cedex 2 Reims, France
| | - Preethanuj Preethalayam
- National Institute for Interdisciplinary Science and Technology, CSIR-NIIST, Industrial
Estate P.O., Trivandrum 19, Kerala, India
| | - K. V. Radhakrishnan
- National Institute for Interdisciplinary Science and Technology, CSIR-NIIST, Industrial
Estate P.O., Trivandrum 19, Kerala, India
| | - Florian Jaroschik
- Institut de Chimie Moléculaire de Reims, CNRS
(UMR 7312), Université de Reims, 51687 Cedex 2 Reims, France
| | - Jean-Luc Vasse
- Institut de Chimie Moléculaire de Reims, CNRS
(UMR 7312), Université de Reims, 51687 Cedex 2 Reims, France
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7
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Joseph J, Jaroschik F, Harakat D, Radhakrishnan KV, Vasse JL, Szymoniak J. Titanium-Catalyzed Hydroalumination of Conjugated Dienes: Access to Fulvene-Derived Allylaluminium Reagents and Their Diastereoselective Reactions with Carbonyl Compounds. Chemistry 2014; 20:5433-8. [DOI: 10.1002/chem.201304775] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Indexed: 12/22/2022]
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