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Tanriver G, Dagoneau D, Karadeniz U, Kolleth A, Lumbroso A, Sulzer-Mossé S, De Mesmaeker A, Catak S. Keteniminium Salts: Reactivity and Propensity toward Electrocyclization Reactions. J Org Chem 2020; 85:449-463. [PMID: 31790586 DOI: 10.1021/acs.joc.9b02466] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A predictive computational study was conducted in order to assess the efficiency of electrocyclization reactions of keteniminium salts, in an effort to form a variety of heterocyclic systems, namely, 3-amino(benzo)thiophenes, 3-amino(benzo)furans, 3-aminopyrroles, as well as 3-aminoindoles. A density functional theory (DFT) approach was utilized and the effect of heteroatoms (NMe, O, S) was thoroughly investigated by means of population analysis, QTAIM, NICS, ACID, and local reactivity descriptors (Parr and Fukui functions). The electrocyclization of enamines leading to 3-aminopyrroles was shown to be both kinetically and thermodynamically most favorable. Moreover, the pericyclic nature of the electrocyclizations was confirmed using FMO, QTAIM, NICS, and ACID methods. Additionally, substituent effects were investigated in order to give further insight on the reactivity of heteroatom containing keteniminium systems toward electrocyclization reactions. Finally, computational predictions were experimentally confirmed for a selection of keteniminium systems.
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Affiliation(s)
- Gamze Tanriver
- Department of Chemistry , Bogazici University , Bebek, 34342 Istanbul , Turkey
| | - Dylan Dagoneau
- Crop Protection Research, Research Chemistry , Syngenta Crop Protection AG , Schaffhauserstrasse 101 , CH-4332 Stein , Switzerland
| | - Ulfet Karadeniz
- Department of Chemistry , Bogazici University , Bebek, 34342 Istanbul , Turkey
| | - Amandine Kolleth
- Crop Protection Research, Research Chemistry , Syngenta Crop Protection AG , Schaffhauserstrasse 101 , CH-4332 Stein , Switzerland
| | - Alexandre Lumbroso
- Crop Protection Research, Research Chemistry , Syngenta Crop Protection AG , Schaffhauserstrasse 101 , CH-4332 Stein , Switzerland
| | - Sarah Sulzer-Mossé
- Crop Protection Research, Research Chemistry , Syngenta Crop Protection AG , Schaffhauserstrasse 101 , CH-4332 Stein , Switzerland
| | - Alain De Mesmaeker
- Crop Protection Research, Research Chemistry , Syngenta Crop Protection AG , Schaffhauserstrasse 101 , CH-4332 Stein , Switzerland
| | - Saron Catak
- Department of Chemistry , Bogazici University , Bebek, 34342 Istanbul , Turkey
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Pravardhan Reddy E, Sumankumar A, Sridhar B, Hemasri Y, Jayaprakash Rao Y, Subba Reddy BV. 1,5-Electrocyclization of conjugated azomethine ylides derived from 3-formyl chromene and N-alkyl amino acids/esters. Org Biomol Chem 2017; 15:7580-7583. [DOI: 10.1039/c7ob00705a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel strategy has been developed for the synthesis of chromeno[3,4-b]pyrrol-4(3H)-one and substituted pyrrole derivatives. This is the first example of the preparation of highly substituted pyrrole derivatives from chromene-3-carboxaldehydes.
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Affiliation(s)
| | - A. Sumankumar
- Centre for Semiochemicals
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | - B. Sridhar
- Laboratory of X-ray Crystallography
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
| | - Y. Hemasri
- Department of Chemistry
- Nizam College
- Osmania University
- India
| | - Y. Jayaprakash Rao
- Department of Chemistry
- Osmania University
- Hyderabad 500 007
- India
- Department of Chemistry
| | - B. V. Subba Reddy
- Centre for Semiochemicals
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
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3
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Heggen B, Patil M, Thiel W. Cyclization of anα,β-Unsaturated hydrazone catalyzed by a BINOL-phosphoric acid: Pericyclic or not? J Comput Chem 2015; 37:280-5. [DOI: 10.1002/jcc.24044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 07/17/2015] [Accepted: 07/20/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Berit Heggen
- Max-Planck-Institut für Kohlenforschung; Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
| | - Mahendra Patil
- Centre for Excellence in Basic Sciences Health Centre, University of Mumbai; Vidhyanagaria Campus Mumbai 400098 India
| | - Walter Thiel
- Max-Planck-Institut für Kohlenforschung; Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
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