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Wendlandt HC, Trammel GL, Kohler DG, Utley JA, Nicely AM, Popov AG, Hull KL. Copper-Catalyzed Three-Component Carboiminolactonization of Electron-Deficient Olefins. J Org Chem 2024; 89:2024-2031. [PMID: 38198512 PMCID: PMC10872306 DOI: 10.1021/acs.joc.3c02326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Herein we report the three-component copper-catalyzed carboiminolactonization of α,β-unsaturated carbonyl derivatives. In the presence of a Cu(I) catalyst, α-haloesters, electron-deficient alkenes, and primary amines couple to generate γ-iminolactones in a single step. The scope of the reaction is explored with respect to the three coupling partners. Nineteen examples are presented with yields of these hydrolytically labile heterocycles of up to 69%. Mechanistic investigations support the formation of an oxocarbenium by way of an atom transfer radical addition (ATRA) intermediate.
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Affiliation(s)
- Hannah C. Wendlandt
- Department of Chemistry, University of Texas at Austin, 100 East 24 Street, Austin, Texas 78712, United States
| | - Grace L. Trammel
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Daniel G. Kohler
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Jacob A. Utley
- Department of Chemistry, University of Texas at Austin, 100 East 24 Street, Austin, Texas 78712, United States
| | - Aja M. Nicely
- Department of Chemistry, University of Texas at Austin, 100 East 24 Street, Austin, Texas 78712, United States
| | - Andrei G. Popov
- Department of Chemistry, University of Texas at Austin, 100 East 24 Street, Austin, Texas 78712, United States
| | - Kami L. Hull
- Department of Chemistry, University of Texas at Austin, 100 East 24 Street, Austin, Texas 78712, United States
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
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2
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Soda AK, Chinthapally KP, C S PK, Chilaka SK, Madabhushi S. Lewis acid catalyzed spiro annulation of ( Z)-3-amino-acrylates with 2-amino arylbenzamides: one-pot synthesis of pyrrole-quinazoline hybrids. RSC Adv 2023; 13:15001-15005. [PMID: 37200694 PMCID: PMC10187044 DOI: 10.1039/d3ra02639f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 04/27/2023] [Indexed: 05/20/2023] Open
Abstract
The one-pot domino reaction of ethyl (Z)-3-amino-3-phenylacrylates with 2-amino-N-alkyl/arylbenzamides under Lewis acid catalysis was described as an effective way to construct novel spiro [pyrrole-3,2'-quinazoline] carboxylate derivatives. By combining substituted alkyl/aryl amides with spiro annulated 1H-pyrrole-2,3-diones, this method provides a novel way for producing spiro pyrrole derivatives in good to excellent yields. The current procedure has a number of benefits, including quicker reaction times, a broad tolerance range for functional groups, and the ability to synthesize 2,3-dihydroquinazolin-4(1H)-ones that are of biological importance and take part in organic transformations. This is the first use of molecular hybridization involving linking with pyrrole derivatives and dihydroquinazolin-4(1H)-ones.
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Affiliation(s)
- Anil Kumar Soda
- Fluoro-Agrochemicals Department, CSIR-Indian Institute of Chemical Technology Hyderabad-500007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
| | | | - Phani Krishna C S
- Fluoro-Agrochemicals Department, CSIR-Indian Institute of Chemical Technology Hyderabad-500007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
| | - Sai Krishna Chilaka
- Fluoro-Agrochemicals Department, CSIR-Indian Institute of Chemical Technology Hyderabad-500007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
| | - Sridhar Madabhushi
- Fluoro-Agrochemicals Department, CSIR-Indian Institute of Chemical Technology Hyderabad-500007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
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3
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Moroz AА, Dmitriev MV, Maslivets AN. Regioselective [3+2] cycloaddition of nitrile oxides to 1Н-pyrrole-2,3-diones: synthesis of spiro[pyrroledioxazoles]. Chem Heterocycl Compd (N Y) 2022. [DOI: 10.1007/s10593-021-03047-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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4
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Galeev AR, Moroz AA, Dmitriev MV, Maslivets AN. Cycloaddition of Huisgen 1,4-dipoles: synthesis and rapid epimerization of functionalized spiropyrido[2,1- b][1,3]oxazine-pyrroles and related products. RSC Adv 2021; 12:578-587. [PMID: 35424489 PMCID: PMC8694240 DOI: 10.1039/d1ra08384h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 12/15/2021] [Indexed: 11/23/2022] Open
Abstract
1,4-Dipolar cycloaddition has emerged as a powerful tool for the synthesis of various cyclic compounds. In the present work, 1H-pyrrole-2,3-diones are proposed as new dipolarophiles for 1,4-dipolar cycloaddition. Their [4 + 2] cycloaddition with dipoles generated from dimethyl acetylenedicarboxylate and pyridine was found to proceed regioselectively affording spiro[pyrido[2,1-b][1,3]oxazine-2,3′-pyrroles] as diastereomeric mixtures which exist in rapid equilibrium in solution. It was established that this phenomenon of rapid epimerization is a characteristic of other similar spiropyrido[2,1-b][1,3]oxazines and even related spiroquinolizines, which was demonstrated by the investigation of related products of previously reported, and reproduced in this work, 1,4-dipolar cycloaddition reactions. Rapid epimerization of cycloadducts from Huisgen 1,4-dipoles has been investigated through the synthesis of new spiropyrido[2,1-b][1,3]oxazine-pyrroles and repetition of syntheses from the literature.![]()
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Affiliation(s)
- Andrew R Galeev
- Department of Chemistry, Perm State University ul. Bukireva 15 Perm 614068 Russia
| | - Anna A Moroz
- Department of Chemistry, Perm State University ul. Bukireva 15 Perm 614068 Russia
| | - Maksim V Dmitriev
- Department of Chemistry, Perm State University ul. Bukireva 15 Perm 614068 Russia
| | - Andrey N Maslivets
- Department of Chemistry, Perm State University ul. Bukireva 15 Perm 614068 Russia
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Zhu G, Fu W, Han B, Shi J, Tong B, Cai Z, Zhi J, Dong Y. Catalyst-Free Multicomponent Cyclopolymerizations of Diisocyanides, Activated Alkynes, and 1,4-Dibromo-2,3-Butanedione: a Facile Strategy toward Functional Polyiminofurans Containing Bromomethyl Groups. Macromol Rapid Commun 2020; 42:e2000463. [PMID: 32989821 DOI: 10.1002/marc.202000463] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/14/2020] [Indexed: 12/17/2022]
Abstract
Polymers containing iminofuran (PIFs) are rarely reported due to the lack of simple and effective synthesis methods. In this work, a novel multicomponent cyclopolymerization (MCCP) of diisocyanides, activated alkynes, and 1,4-dibromo-2,3-butanedione using catalyst-free one-pot reactions under mild conditions to prepare PIFs containing bromomethyl groups is reported. PIFs with good solubility and thermal stability are obtained with high Mw s (up to 19 600) and good yields (up to 89.5%) under optimized polymerization conditions. The structure of the PIFs is characterized by nuclear magnetic resonance, Fourier transform infrared spectroscopy, and gel permeation chromatography. The photophysical properties indicate that polymers P1a2b3 and P1c2b3 have cluster-triggered emission characteristics. Thin films made from PIFs quickly degrade under UV irradiation. Moreover, the obtained polymers are decorated with bromomethyl and carboxylate groups in the side chain, which can be postfunctionalized to prepare multifunctional materials, such as star branched polymers and biomedical carrier materials. Thus, this work not only enriches the field of polymerization based on isocyanates and activated alkynes but also provides a facile strategy toward functional iminofuran polymers.
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Affiliation(s)
- Guinan Zhu
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Weiqiang Fu
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Binru Han
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Jianbing Shi
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Bin Tong
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Zhengxu Cai
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Junge Zhi
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Yuping Dong
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
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