1
|
Costa AM, Castro-Alvarez A, Vilarrasa J, Fillot D. Computational Comparison of the Stability of Iminium Ions and Salts from Enals and Pyrrolidine Derivatives (Aminocatalysts). European J Org Chem 2022. [DOI: 10.1002/ejoc.202200627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Anna M. Costa
- Universitat de Barcelona Facultat de Química: Universitat de Barcelona Facultat de Quimica Organic Chemistry Section Av. Diagonal 645 08028 Barcelona SPAIN
| | - Alejandro Castro-Alvarez
- Universidad de la Frontera Facultad de Medicina Ciencias Preclínicas Av. Alemania 0458 4810296 Temuco CHILE
| | - Jaume Vilarrasa
- Universitat de Barcelona Organic Chemistry Section, Fac. Quimica Av. Diagonal 645 08028 Barcelona SPAIN
| | - Daniel Fillot
- Universidad de Barcelona Facultad de Química: Universitat de Barcelona Facultat de Quimica Organic Chemistry Section (Dep. Quim. Inorg. i Org.) Diagonal 645 08028 Barcelona SPAIN
| |
Collapse
|
2
|
Moriyama K, Oka Y. Enantioselective Cascade Michael/Hemiaminal Formation of α,β-Unsaturated Iminoindoles with Aldehydes Using a Chiral Aminomethylpyrrolidine Catalyst Bearing a SO 2C 6F 5 Group as a Strongly Electron Withdrawing Arylsulfonyl Group. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Katsuhiko Moriyama
- Department of Chemistry, Graduate School of Science and Soft Molecular Activation Research Center, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Yukari Oka
- Department of Chemistry, Graduate School of Science and Soft Molecular Activation Research Center, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| |
Collapse
|
3
|
Costa AM, Cascales V, Castro-Alvarez A, Vilarrasa J. Computational Study of the Stability of Pyrrolidine-Derived Iminium Ions: Exchange Equilibria between Iminium Ions and Carbonyl Compounds. ACS OMEGA 2022; 7:18247-18258. [PMID: 35694469 PMCID: PMC9178767 DOI: 10.1021/acsomega.1c07020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 05/11/2022] [Indexed: 06/15/2023]
Abstract
The tendency of carbonyl compounds to form iminium ions by reaction with pyrrolidine or chiral pyrrolidine derivatives (in other words, the relative stability to hydrolysis of these iminium ions) has been computationally examined, mainly using the M06-2X/6-311+G(d,p) method. We have thus obtained the equilibrium positions for R-CH=O + CH2=CH-CH=N+R2* → R-CH=N+R2* + CH2=CH-CH=O reactions and for related exchanges. In these exchanges, there is a transfer of a secondary amine between two carbonyl compounds. Their relative energies may be used to predict which iminium species can be predominantly formed when two or more carbonyl groups are present in a reaction medium. In the catalytic Michael additions of nucleophiles to iminium ions arising from conjugated enals, dienals, and trienals, if the formation of the new Nu-C bond is favorable, the chances of amino-catalyzed reactions to efficiently proceed, with high conversions, depend on the calculated energy values for these exchange equilibria, where the iminium tetrafluoroborates of the adducts (final iminium intermediates) must be more prone to hydrolysis than the initial iminium tetrafluoroborates. The density functional theory (DFT) calculations indicate that the MacMillan catalysts and related oxazolidinones are especially suitable in this regard.
Collapse
|
4
|
Kamanna K. Organocatalysts based on natural and modified amino acids for asymmetric reactions. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Small organic molecules predominantly containing C, H, O, N, S and P element are found promising molecule to accelerate chemical reactions and are named organocatalysis. In addition, these organocatalysts are easy availability, stable in water and air, inexpensive, and low toxicity, which confer a huge direct application in organic synthesis when compared to transition metal catalyzed reactions and becoming powerful tools in the construction of a selective chiral product. Interest on organocatalysis is spectacularly increased since last two decades, due to the novelty of the concept and selectivity. Based on the nature of the organocatalysts used, they are classified in to four major classes, among them one of the types is amino acids derived organocatalysts. Natural amino acids are playing important role in building blocks of protein construction, and also intermediate products of the metabolism. α-Amino acid is a molecule, that contains both amine and carboxyl functional group. Their particular structural characteristic determines their role in protein synthesis, and bifunctional asymmetric catalysts for stereoselective synthesis. Two functional groups present on a single carbon acting as an acid and base, which promote chemical transformations in concert similar to the enzymatic catalysis. The post translational derivatives of natural α-amino acids include 4-hydroxy-L-proline and 4-amino-L-proline scaffolds, and its synthetic variants based organocatalysts, whose catalytic activity is well documented. This chapter discussed past and present development of the organocatalysts derived from natural and modified amino acids for various important organic transformations reviewed.
Collapse
Affiliation(s)
- Kantharaju Kamanna
- Department of Chemistry , Rani Channamma University , Vidyasangama , P-B, NH-4 , Belagavi 591156 , Karnataka , India
| |
Collapse
|
5
|
Rozsar D, Formica M, Yamazaki K, Hamlin TA, Dixon DJ. Bifunctional Iminophosphorane-Catalyzed Enantioselective Sulfa-Michael Addition to Unactivated α,β-Unsaturated Amides. J Am Chem Soc 2022; 144:1006-1015. [PMID: 34990142 PMCID: PMC8793149 DOI: 10.1021/jacs.1c11898] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
![]()
The
first metal-free catalytic intermolecular enantioselective
Michael addition to unactivated α,β-unsaturated amides
is described. Consistently high enantiomeric excesses and yields were
obtained over a wide range of alkyl thiol pronucleophiles and electrophiles
under mild reaction conditions, enabled by a novel squaramide-based
bifunctional iminophosphorane catalyst. Low catalyst loadings (2.0
mol %) were achieved on a decagram scale, demonstrating the scalability
of the reaction. Computational analysis revealed the origin of the
high enantiofacial selectivity via analysis of relevant transition
structures and provided substantial support for specific noncovalent
activation of the carbonyl group of the α,β-unsaturated
amide by the catalyst.
Collapse
Affiliation(s)
- Daniel Rozsar
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
| | - Michele Formica
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
| | - Ken Yamazaki
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom.,Department of Theoretical Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Amsterdam Center for Multiscale Modeling (ACMM), Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Trevor A Hamlin
- Department of Theoretical Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Amsterdam Center for Multiscale Modeling (ACMM), Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Darren J Dixon
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
| |
Collapse
|
6
|
Du Y, Sari O, Erdem SS, Whiting A. A Bifunctional B,N‐Based Asymmetric Catalytic Nitrostyrene‐
Michael
Addition Acting through a 10‐Membered Ring Cyclic Transition State. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yihao Du
- Department of Chemistry Durham University Science Laboratories South Road Durham DH1 3QZ United Kingdom
| | - Ozlem Sari
- Network Technologies Department TÜBİTAK ULAKBİM TR-06800 Ankara Turkey
| | - Safiye S. Erdem
- Chemistry Department Faculty of Arts and Sciences Marmara University TR-34722 Goztepe, Istanbul Turkey
| | - Andrew Whiting
- Department of Chemistry Durham University Science Laboratories South Road Durham DH1 3QZ United Kingdom
| |
Collapse
|
7
|
Oka Y, Tsuzuki S, Moriyama K. Chiral anthranilic pyrrolidine as custom-made amine catalyst for enantioselective Michael reaction of nitroalkenes with carbonyl compounds. Chem Commun (Camb) 2021; 57:11457-11460. [PMID: 34632990 DOI: 10.1039/d1cc04453b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A chiral anthranilic pyrrolidine catalyst as a custom-made amine-catalyst was developed for the enantio- and diastereo selective Michael reaction of nitroalkenes with carbonyl compounds. In particular, a peptide-like catalyst in which an α-amino acid is attached to the anthranilic acid skeleton induced the high stereoselectivity of the reaction with aldehydes. Studies of the reaction mechanism indicated that the catalyst exhibits a divergent stereocontrol in the reaction, namely, steric control by a 2-substituted group on the catalyst and hydrogen-bonding control by a carboxylic acid group on the catalyst.
Collapse
Affiliation(s)
- Yukari Oka
- Department of Chemistry, Graduate School of Science and Soft Molecular Activation Research Center, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
| | - Seiji Tsuzuki
- Department of Applied Physics, The University of Tokyo, 7-3-1 Hongo, Tokyo 113-8656, Japan
| | - Katsuhiko Moriyama
- Department of Chemistry, Graduate School of Science and Soft Molecular Activation Research Center, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
| |
Collapse
|
8
|
Gorde AB, Ansari A, Ramapanicker R. Asymmetric Michael addition reactions of aldehydes to β-nitrostyrenes catalyzed by (S)–N-(D-prolyl-L-prolyl)-1 -triflicamido-3 -phenylpropan-2-amine. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
9
|
Castro-Alvarez A, Carneros H, Calafat J, Costa AM, Marco C, Vilarrasa J. NMR and Computational Studies on the Reactions of Enamines with Nitroalkenes That May Pass through Cyclobutanes. ACS OMEGA 2019; 4:18167-18194. [PMID: 31720519 PMCID: PMC6844152 DOI: 10.1021/acsomega.9b02074] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 10/10/2019] [Indexed: 06/10/2023]
Abstract
The addition of aldehyde enamines to nitroalkenes affords cyclobutanes in all solvents, with all of the pyrrolidine and proline derivatives tested by us and with all of the substrates we have examined. Depending on the temperature, concentration of water, solvent polarity, and other factors, the opening and hydrolysis of such a four-membered ring may take place rapidly or last for several days, producing the final Michael-like adducts (4-nitrobutanals). Thirteen new cyclobutanes have now been characterized by NMR spectroscopy. As could be expected, s-trans-enamine conformers give rise to all-trans-(4S)-4-nitrocyclobutylpyrrolidines, while s-cis-enamine conformers afford all-trans-(4R)-4-nitrocyclobutylpyrrolidines. These four-membered rings can isomerize to adduct enamines, which should be hydrolyzed via their iminium ions. MP2 and M06-2X calculations predict that one iminium ion is more stable than the other iminium species, so that protonation of the adduct enamines can be quite stereoselective; in the presence of water, the so-called syn adducts (e.g., OCH-*CHR-*CHPh-CH2NO2, with R and Ph syn) eventually become the major products. Why one syn adduct is obtained with aldehydes, whereas cyclic ketones (the predicted ring-fused cyclobutanes of which isomerize to their enamines more easily) produce the other syn adduct, is also explained by means of molecular orbital calculations. Nitro-Michael reactions of aldehyde enamines that "stop" at the nitrocyclobutane stage and final enamine stage do not work catalytically, as known, but those of cyclic ketone enamines that do not work stop at the final enamine stage (if their hydrolysis to the corresponding nitroethylketones is less favorable than expected). These and other facts are accounted for, and the proposals of the groups led by Seebach and Hayashi, Blackmond, and Pihko and Papai are reconciled.
Collapse
|
10
|
Omar EM, Rahman MBA, Ni B, Headley AD. The role of neutral anions in ionic liquid as solvent media for the reactivity and stereoselectivity towards asymmetric Michael addition reaction of n-pentanal with β-nitrostyrene catalyzed by L-Proline. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1604969] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Emmy M. Omar
- Integrated Chemical BioPhysics Research (ICheBP), Faculty of Science, Universiti Putra Malaysia, Selangor, Malaysia
| | - Mohd Basyaruddin A. Rahman
- Integrated Chemical BioPhysics Research (ICheBP), Faculty of Science, Universiti Putra Malaysia, Selangor, Malaysia
- Department of Chemistry Faculty of Science, Universiti Putra Malaysia, Selangor, Malaysia
| | - Bukuo Ni
- Department of Chemistry, Texas A&M University-Commerce, Commerce, TX, USA
| | - Allan D. Headley
- Department of Chemistry, Texas A&M University-Commerce, Commerce, TX, USA
| |
Collapse
|
11
|
Gorde AB, Ramapanicker R. d-Prolyl-2-(trifluoromethylsulfonamidopropyl)pyrrolidine: An Organocatalyst for Asymmetric Michael Addition of Aldehydes to β-Nitroalkenes at Ambient Conditions. J Org Chem 2019; 84:1523-1533. [PMID: 30609351 DOI: 10.1021/acs.joc.8b02945] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Amol B. Gorde
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Ramesh Ramapanicker
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| |
Collapse
|
12
|
Yuan H, Zhu L, Li W, Zhang J. Mechanistic insight on water and substrate catalyzed the synthesis of 3-(1H-indol-3-yl)-2-(4-methoxybenzyl)isoindolin-1-one: Driving by noncovalent interactions. J Comput Chem 2018; 39:2316-2323. [PMID: 30284296 DOI: 10.1002/jcc.25563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 07/13/2018] [Accepted: 07/27/2018] [Indexed: 11/09/2022]
Abstract
The mechanisms of the synthesis of 2-substituted-3-(1H-indol-3-yl)-isoindolin-1-one derivatives have been investigated theoretically under unassisted, self-assisted, and water-assisted conditions. Being different from previously proposed catalyst-free by Hu et al., our results show that the title mechanism can be altered and accelerated by solvent and substrate 2. Two types of mechanisms have been developed by DFT calculations differ in the reaction sequence of substrates 1 with 3 (M1) or 2 (M2) followed by 2 (M1) or 3 (M2), and water-assisted M1 is the most favored one. It was found that the nucleophilicity of substrate 3 is stronger than that of 2. Our calculations suggest that the water-assisted pathway in M1 is the most favorable case, which undergoes nucleophilic addition and H-shift, C-N bond formation and water elimination, and intramolecular cyclization and water elimination. The rate-determining step is the nucleophilic attack process. Moreover, we also explored the effect of nucleophilic attack of the nitrogen of (4-methoxyphenyl)methanamine on hydroxyl or carbonyl group carbon of phthalaldehydic acid on the activation energy. More importantly, we found that water molecules play a critical role in the whole reaction, not only act as solvent but also as an efficient catalyst, proton shuttle, and stabilizer to stabilize the structures of transition states and intermediates via π···H-O, O···H-N, O···H-C, and O···H-O interactions. The origin of the different reactivity of M1 and M2 is ascribed to the pivotal noncovalent interactions exist between catalyst (water and substrate 2) and reactants. © 2018 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Haiyan Yuan
- Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Lihan Zhu
- Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Wenliang Li
- Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Jingping Zhang
- Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China
| |
Collapse
|
13
|
Maity C, Trausel F, Eelkema R. Selective activation of organocatalysts by specific signals. Chem Sci 2018; 9:5999-6005. [PMID: 30079215 PMCID: PMC6050528 DOI: 10.1039/c8sc02019a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 06/19/2018] [Indexed: 01/05/2023] Open
Abstract
Activation of the responsive organocatalyst proline by three different signals allows temporal control over chemical reaction kinetics.
Reminiscent of signal transduction in biological systems, artificial catalysts whose activity can be controlled by physical or chemical signals would be of high interest in the design of chemical systems that can respond to their environment. Self-immolative chemistry offers a generic method for the development of catalysts that can be activated by different signals. To demonstrate the versatility of that concept, we synthesized organocatalysts that can be activated by three different signals and that can be used to control two different reactions. In this way the organocatalyst proline is designed as a pro-catalyst that is activated either by the chemical signal H2O2, by light or by the enzyme penicillin acylase. The pro-catalysts were used to exert temporal control over the rate of an aldol reaction and a Michael reaction.
Collapse
Affiliation(s)
- Chandan Maity
- Department of Chemical Engineering , Delft University of Technology , van der Maasweg 9 , 2629 HZ Delft , The Netherlands .
| | - Fanny Trausel
- Department of Chemical Engineering , Delft University of Technology , van der Maasweg 9 , 2629 HZ Delft , The Netherlands .
| | - Rienk Eelkema
- Department of Chemical Engineering , Delft University of Technology , van der Maasweg 9 , 2629 HZ Delft , The Netherlands .
| |
Collapse
|
14
|
Zhu LH, Yuan HY, Li WL, Zhang JP. A computational mechanistic study of substrate-controlled competitive O–H and C–H insertion reactions catalyzed by dirhodium(ii) carbenoids: insight into the origin of chemoselectivity. Org Chem Front 2018. [DOI: 10.1039/c8qo00475g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
DFT calculations disclosed the chemoselectivity of rhodium carbenoid and water co-catalyzed O–H and C–H insertion reactions with three 1,3-diketone substrates.
Collapse
Affiliation(s)
- Li-Han Zhu
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Hai-Yan Yuan
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Wen-Liang Li
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Jing-Ping Zhang
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| |
Collapse
|
15
|
Yuan B, He R, Guo X, Shen W, Zhang F, Xu Y, Li M. DFT study on the Au(i)-catalyzed cyclization of indole-allenoate: counterion and solvent effects. NEW J CHEM 2018. [DOI: 10.1039/c8nj02375a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The base strength was revealed to be the primary factor controlling the catalytic capability of counterions. The image shows the Au(i)-catalyzed cyclization reaction of indole-allenoate to form dihydrocyclopenta[b]indole derivatives, as reported by Ma.
Collapse
Affiliation(s)
- Binfang Yuan
- School of Chemistry and Chemical Engineering, Yangtze Normal University
- Chongqing 408100
- China
- College of Chemistry and Chemical Engineering, Southwest University
- Chongqing 400715
| | - Rongxing He
- College of Chemistry and Chemical Engineering, Southwest University
- Chongqing 400715
- China
| | - Xiaogang Guo
- School of Chemistry and Chemical Engineering, Yangtze Normal University
- Chongqing 408100
- China
| | - Wei Shen
- College of Chemistry and Chemical Engineering, Southwest University
- Chongqing 400715
- China
| | - Fengying Zhang
- College of Chemistry and Chemical Engineering, Southwest University
- Chongqing 400715
- China
| | - Yanyan Xu
- College of Chemistry and Chemical Engineering, Southwest University
- Chongqing 400715
- China
| | - Ming Li
- College of Chemistry and Chemical Engineering, Southwest University
- Chongqing 400715
- China
| |
Collapse
|
16
|
Husch T, Seebach D, Beck AK, Reiher M. Rigorous Conformational Analysis of Pyrrolidine Enamines with Relevance to Organocatalysis. Helv Chim Acta 2017. [DOI: 10.1002/hlca.201700182] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Tamara Husch
- Laboratorium für Physikalische Chemie ETH Zürich Vladimir‐Prelog‐Weg 3 8093 Zürich Switzerland
| | - Dieter Seebach
- Laboratorium für Organische Chemie ETH Zürich Vladimir‐Prelog‐Weg 2 8093 Zürich Switzerland
| | - Albert K. Beck
- Laboratorium für Organische Chemie ETH Zürich Vladimir‐Prelog‐Weg 2 8093 Zürich Switzerland
| | - Markus Reiher
- Laboratorium für Physikalische Chemie ETH Zürich Vladimir‐Prelog‐Weg 3 8093 Zürich Switzerland
| |
Collapse
|
17
|
Borges-González J, Feher-Voelger A, Crisóstomo FP, Morales EQ, Martín T. Tetrahydropyran-Based Hybrid Dipeptides as Asymmetric Catalysts for Michael Addition of Aldehydes to β-Nitrostyrenes. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601193] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Jorge Borges-González
- Instituto de Productos Naturales y Agrobiología-CSIC; Avda. Astrofísico Francisco Sánchez, 3 38206 La Laguna, S/C de Tenerife Spain
| | - Andrés Feher-Voelger
- Instituto de Productos Naturales y Agrobiología-CSIC; Avda. Astrofísico Francisco Sánchez, 3 38206 La Laguna, S/C de Tenerife Spain
| | - Fernando Pinacho Crisóstomo
- Instituto de Productos Naturales y Agrobiología-CSIC; Avda. Astrofísico Francisco Sánchez, 3 38206 La Laguna, S/C de Tenerife Spain
- Instituto Universitario de Bio-Orgánica “Antonio González”, CIBICAN; Avda. Astrofísico Francisco Sánchez, 2 38206 La Laguna, S/C de Tenerife Spain
| | - Ezequiel Q. Morales
- Instituto de Productos Naturales y Agrobiología-CSIC; Avda. Astrofísico Francisco Sánchez, 3 38206 La Laguna, S/C de Tenerife Spain
| | - Tomás Martín
- Instituto de Productos Naturales y Agrobiología-CSIC; Avda. Astrofísico Francisco Sánchez, 3 38206 La Laguna, S/C de Tenerife Spain
- Instituto Universitario de Bio-Orgánica “Antonio González”, CIBICAN; Avda. Astrofísico Francisco Sánchez, 2 38206 La Laguna, S/C de Tenerife Spain
| |
Collapse
|
18
|
Liu J, Zheng Y, Liu Y, Yuan H, Zhang J. Mechanistic insight on (E)-methyl 3-(2-aminophenyl)acrylate cyclization reaction by multicatalysis of solvent and substrate. J Comput Chem 2016; 37:2386-94. [PMID: 27487815 DOI: 10.1002/jcc.24463] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 07/11/2016] [Accepted: 07/11/2016] [Indexed: 12/17/2022]
Abstract
The reaction mechanism of (E)-methyl 3-(2-aminophenyl)acrylate (A) with phenylisothiocyanate (B) as well as the vital roles of substrate A and solvent water were investigated under unassisted, water-assisted, substrate A-assisted, and water-A-assisted conditions. The reaction proceeds with four processes via nucleophilic addition, deprotonation and protonation, intramolecular cyclization with hydrogen transfer, and keto-enol tautomerization. According to the different H-shift mode, two possible types of H-shift P1 and P2 are carefully investigated to identify the most preferred pathway, differing in the NH2 group deprotonation and CH group of A protonation processes. It is found that substrate A and water not only act as reactant and solvent, but also as catalyst, proton shuttle, and stabilizer in effectively lowering the energy barrier. Therefore, the results demonstrate that the strong donating and accepting ability of NH2 group on A and the presence of bulk water are the keys to the title reaction proceed. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Jiahui Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Renmin Street 5268#, Changchun, 130024, China
| | - Yiying Zheng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Renmin Street 5268#, Changchun, 130024, China
| | - Ying Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Renmin Street 5268#, Changchun, 130024, China
| | - Haiyan Yuan
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Renmin Street 5268#, Changchun, 130024, China.
| | - Jingping Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Renmin Street 5268#, Changchun, 130024, China.
| |
Collapse
|
19
|
Design and Preparation of Polymer Resin-Supported Proline Catalyst with Industrial Application Potential. ChemistrySelect 2016. [DOI: 10.1002/slct.201600404] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
20
|
Yuan H, Zheng Y, Zhang J. Understanding the Mechanism of the Lewis Acid Promoted [3 + 2] Cycloaddition of Propargylic Alcohol and α-Oxo Ketene Dithioacetals. J Org Chem 2016; 81:1989-97. [DOI: 10.1021/acs.joc.5b02826] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Haiyan Yuan
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, Jilin, China
| | - Yiying Zheng
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, Jilin, China
| | - Jingping Zhang
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, Jilin, China
| |
Collapse
|
21
|
Yu L, Luan J, Xu L, Ding Y, Xu Q. Proline and secondary amine co-catalyzed condensation of cyclobutanone with aldehydes: a facile access to 2-methylenecyclobutanones under near neutral conditions. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.088] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
|
22
|
Fu A, Tian C, Li H, Li P, Chu T, Wang Z, Liu J. A revisit to proline-catalyzed amination under basic conditions: Insight into the key intermediates and stereocontrolling transition state models for the reversal of enantioselectivity. Chem Phys 2015. [DOI: 10.1016/j.chemphys.2015.04.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
23
|
Chakrabarty K, Ghosh A, Basak A, Das GK. Stabilization of the transition structures of organocatalytic asymmetric direct aldol reaction in wet solvent free condition by the formation of water assisted supramolecular network: A DFT study. COMPUT THEOR CHEM 2015. [DOI: 10.1016/j.comptc.2015.03.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
24
|
Ruiz-Olalla A, Retamosa MDG, Cossío FP. Densely Substituted l-Proline Esters as Catalysts for Asymmetric Michael Additions of Ketones to Nitroalkenes. J Org Chem 2015; 80:5588-99. [DOI: 10.1021/acs.joc.5b00495] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrea Ruiz-Olalla
- Departamento
de Química Orgánica I/Kimika Organiko I Saila, Universidad del País Vasco/Euskal Herriko Unibertsitatea, and Centro de Innovación en Química Avanzada (ORFEO−CINQA), P° Manuel Lardizabal 3, 20018 San Sebastián/Donostia, Gipuzkoa, Spain
| | - María de Gracia Retamosa
- Departamento
de Química Orgánica I/Kimika Organiko I Saila, Universidad del País Vasco/Euskal Herriko Unibertsitatea, and Centro de Innovación en Química Avanzada (ORFEO−CINQA), P° Manuel Lardizabal 3, 20018 San Sebastián/Donostia, Gipuzkoa, Spain
- Donostia International Physics Center (DIPC), P° Manuel Lardizabal 4, 20018 San Sebastián/Donostia, Gipuzkoa, Spain
| | - Fernando P. Cossío
- Departamento
de Química Orgánica I/Kimika Organiko I Saila, Universidad del País Vasco/Euskal Herriko Unibertsitatea, and Centro de Innovación en Química Avanzada (ORFEO−CINQA), P° Manuel Lardizabal 3, 20018 San Sebastián/Donostia, Gipuzkoa, Spain
- Donostia International Physics Center (DIPC), P° Manuel Lardizabal 4, 20018 San Sebastián/Donostia, Gipuzkoa, Spain
| |
Collapse
|
25
|
Xu L, Huang J, Liu Y, Wang Y, Xu B, Ding K, Ding Y, Xu Q, Yu L, Fan Y. Design and application of the recyclable poly(l-proline-co-piperidine) catalyst for the synthesis of mesityl oxide from acetone. RSC Adv 2015. [DOI: 10.1039/c5ra05741h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel bi-component poly(l-proline-co-piperidine) catalyst was developed for the synthesis of mesityl oxide from acetone. The catalyst is more eco-friendly than traditional inorganic bases, avoiding the generation of corrosive solid, and the catalytic mechanism was studied.
Collapse
|
26
|
Quintard A, Cheshmedzhieva D, Sanchez Duque MDM, Gaudel-Siri A, Naubron JV, Génisson Y, Plaquevent JC, Bugaut X, Rodriguez J, Constantieux T. Origin of the enantioselectivity in organocatalytic Michael additions of β-ketoamides to α,β-unsaturated carbonyls: a combined experimental, spectroscopic and theoretical study. Chemistry 2014; 21:778-90. [PMID: 25382666 DOI: 10.1002/chem.201404481] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Revised: 09/18/2014] [Indexed: 12/27/2022]
Abstract
The organocatalytic enantioselective conjugate addition of secondary β-ketoamides to α,β-unsaturated carbonyl compounds is reported. Use of bifunctional Takemoto's thiourea catalyst allows enantiocontrol of the reaction leading either to simple Michael adducts or spirocyclic aminals in up to 99 % ee. The origin of the enantioselectivity has been rationalised based on combined DFT calculations and kinetic analysis. This study provides a deeper understanding of the reaction mechanism, which involves a predominant role of the secondary amide proton, and clarifies the complex interactions occurring between substrates and the catalyst.
Collapse
Affiliation(s)
- Adrien Quintard
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397, Marseille (France). Fax: (+33) 491-289-187
| | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Valekar NJ, Patil PP, Gore AH, Kolekar GB, Deshmukh MB, Anbhule PV. Sequence Selective Michael Addition for Synthesis of Indeno-Pyridine and Indeno-Pyran Derivatives in One-Pot Reaction Using CuO Nanoparticles in Water. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.2228] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Navanath J. Valekar
- Medicinal Chemistry Research Lab., Department of Chemistry; Shivaji University; Kolhapur 416004 Maharashtra India
| | - Prasad P. Patil
- Medicinal Chemistry Research Lab., Department of Chemistry; Shivaji University; Kolhapur 416004 Maharashtra India
| | - Anil H. Gore
- Medicinal Chemistry Research Lab., Department of Chemistry; Shivaji University; Kolhapur 416004 Maharashtra India
| | - Govind B. Kolekar
- Medicinal Chemistry Research Lab., Department of Chemistry; Shivaji University; Kolhapur 416004 Maharashtra India
| | - Madhukar B. Deshmukh
- Medicinal Chemistry Research Lab., Department of Chemistry; Shivaji University; Kolhapur 416004 Maharashtra India
| | - Prashant V. Anbhule
- Medicinal Chemistry Research Lab., Department of Chemistry; Shivaji University; Kolhapur 416004 Maharashtra India
| |
Collapse
|
28
|
Kanani MB, Patel MP. Facile construction of densely functionalized thiopyrano[2,3-b]quinolines via three-component reactions catalyzed by l-proline. RSC Adv 2014. [DOI: 10.1039/c4ra05042h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
29
|
Yang H, Wong MW. Oxyanion Hole Stabilization by C–H···O Interaction in a Transition State—A Three-Point Interaction Model for Cinchona Alkaloid-Catalyzed Asymmetric Methanolysis of meso-Cyclic Anhydrides. J Am Chem Soc 2013; 135:5808-18. [DOI: 10.1021/ja4005893] [Citation(s) in RCA: 130] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hui Yang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Ming Wah Wong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| |
Collapse
|
30
|
Sharma AK, Sunoj RB. Refined Transition-State Models for Proline-Catalyzed Asymmetric Michael Reactions under Basic and Base-Free Conditions. J Org Chem 2012. [DOI: 10.1021/jo3023654] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Akhilesh K. Sharma
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Raghavan B. Sunoj
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| |
Collapse
|
31
|
Huang X, Shi H, Ren J, Liu G, Tang Y, Zeng B. An Improved Practical Route to (±)-Epibatidine through L-Proline Catalyzed Intramolecular Michael Addition. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201200298] [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]
|