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Maciá M, Porcar R, Martí-Centelles V, García-Verdugo E, Burguete MI, Luis SV. Rational Design of Simple Organocatalysts for the HSiCl 3 Enantioselective Reduction of (E)- N-(1-Phenylethylidene)aniline. Molecules 2021; 26:6963. [PMID: 34834055 PMCID: PMC8625272 DOI: 10.3390/molecules26226963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/16/2021] [Accepted: 11/16/2021] [Indexed: 11/17/2022] Open
Abstract
Prolinamides are well-known organocatalysts for the HSiCl3 reduction of imines; however, custom design of catalysts is based on trial-and-error experiments. In this work, we have used a combination of computational calculations and experimental work, including kinetic analyses, to properly understand this process and to design optimized catalysts for the benchmark (E)-N-(1-phenylethylidene)aniline. The best results have been obtained with the amide derived from 4-methoxyaniline and the N-pivaloyl protected proline, for which the catalyzed process is almost 600 times faster than the uncatalyzed one. Mechanistic studies reveal that the formation of the component supramolecular complex catalyst-HSiCl3-substrate, involving hydrogen bonding breaking and costly conformational changes in the prolinamide, is an important step in the overall process.
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Affiliation(s)
- María Maciá
- Department of Inorganic and Organic Chemistry, Jaume I University, Av. Vicent Sos Baynat s/n, 12071 Castellón, Spain; (M.M.); (R.P.); (V.M.-C.); (M.I.B.)
| | - Raúl Porcar
- Department of Inorganic and Organic Chemistry, Jaume I University, Av. Vicent Sos Baynat s/n, 12071 Castellón, Spain; (M.M.); (R.P.); (V.M.-C.); (M.I.B.)
- Department of Organic and Bio-Organic Chemistry, Faculty of Science, UNED—Universidad Nacional de Educación a Distancia, Avenida de Esparta s/n, 28232 Las Rozas-Madrid, Spain
| | - Vicente Martí-Centelles
- Department of Inorganic and Organic Chemistry, Jaume I University, Av. Vicent Sos Baynat s/n, 12071 Castellón, Spain; (M.M.); (R.P.); (V.M.-C.); (M.I.B.)
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, 46022 Valencia, Spain
| | - Eduardo García-Verdugo
- Department of Inorganic and Organic Chemistry, Jaume I University, Av. Vicent Sos Baynat s/n, 12071 Castellón, Spain; (M.M.); (R.P.); (V.M.-C.); (M.I.B.)
| | - Maria Isabel Burguete
- Department of Inorganic and Organic Chemistry, Jaume I University, Av. Vicent Sos Baynat s/n, 12071 Castellón, Spain; (M.M.); (R.P.); (V.M.-C.); (M.I.B.)
| | - Santiago V. Luis
- Department of Inorganic and Organic Chemistry, Jaume I University, Av. Vicent Sos Baynat s/n, 12071 Castellón, Spain; (M.M.); (R.P.); (V.M.-C.); (M.I.B.)
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Inani H, Singh A, Zlotin SG, Easwar S, Bhati M, Kumari K, Kucherenko AS. Proline-Histidine Dipeptide: A Suitable Template for Generating Ion-Tagged Organocatalysts for the Asymmetric Aldol Reaction. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1477-4871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractProline-histidine dipeptide laid the foundation for the construction of three new ion-tagged organocatalysts, utilising the imidazole moiety of histidine for generating the quaternary species. A brief comparative investigation of the catalysts in the enamine-mediated direct asymmetric aldol reaction brought out their contrasting features, particularly under aqueous conditions. The best among them was also utilised in preparing some derivatives and effecting a desymmetrisation.
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Affiliation(s)
- Heena Inani
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan
| | - Avtar Singh
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan
| | - Sergei G. Zlotin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences
| | - Srinivasan Easwar
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan
| | - Meeta Bhati
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan
| | - Kiran Kumari
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan
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Juaristi E. Recent developments in next generation (S)-proline-derived chiral organocatalysts. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132143] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Abstract
The aldol reaction which is the most important one among the C-C bond forming reactions,
is widely used by synthetic organic chemists to obtain β-hydroxycarbonyl compounds which are important
starting components for biologically active compounds in optically pure form. In this research,
five Pro-Phe derivatives were synthesized by simple amidation reactions and characterized by their
spectral data. Their catalytic activities in asymmetric aldol reaction were investigated. The catalytic
activity studies were performed with aliphatic ketones and various aromatic aldehydes. Especially, (S)-
methyl 3-mercapto-2-((S)-3-phenyl-2-((S)-pyrrolidine-2-carboxamido)propanamido)propanoate showed
good catalytic activities in water at 0oC in the presence of p-nitrobenzoic acid cocatalyst. The enantioselectivities
were up to 90.4%, the diastereomeric ratios were up to 97/3 and yields were 99%. The
results showed that these organocatalysts were promising organocatalysts for aldol reaction. Besides,
this catalyst showed its best catalytic activities in water which is also an important contribution to
green chemistry requirements.
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Affiliation(s)
- Merve Karaoglu
- Department of Chemistry, Yildiz Technical University, Davutpasa Campus, 34010 Esenler, Istanbul,Turkey
| | - Feray Aydogan
- Department of Chemistry, Yildiz Technical University, Davutpasa Campus, 34010 Esenler, Istanbul,Turkey
| | - Cigdem Yolacan
- Department of Chemistry, Yildiz Technical University, Davutpasa Campus, 34010 Esenler, Istanbul,Turkey
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Krištofíková D, Modrocká V, Mečiarová M, Šebesta R. Green Asymmetric Organocatalysis. CHEMSUSCHEM 2020; 13:2828-2858. [PMID: 32141177 DOI: 10.1002/cssc.202000137] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 03/05/2020] [Indexed: 06/10/2023]
Abstract
Asymmetric organocatalysis is becoming one of the main tools for the synthesis of chiral compounds that are needed as medicines, crop protection agents, and other bioactive molecules. It can be effectively combined with various green chemistry methodologies. Intensification techniques, such as ball milling, flow, high pressure, or light, bring not only higher yields, faster reactions, and easier product isolation, but also new reactivities. More sustainable reaction media, such as ionic liquids, deep eutectic solvents, green solvent alternatives, and water, also considerably enhance the sustainability profile of many organocatalytic reactions.
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Affiliation(s)
- Dominika Krištofíková
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Viktória Modrocká
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Mária Mečiarová
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Radovan Šebesta
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina, Ilkovicova 6, 842 15, Bratislava, Slovakia
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Kui T, Guillen F. Histidine-based salt as an ionic tag for proline: application in enantioselective cross aldol reaction in ionic liquids. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1745241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Tony Kui
- SPCMIB, UMR 5068 CNRS-Université Paul Sabatier-Toulouse III, Toulouse, France
| | - Frédéric Guillen
- SPCMIB, UMR 5068 CNRS-Université Paul Sabatier-Toulouse III, Toulouse, France
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Kerru N, Maddila S, Jonnalagadda SB. Design of Carbon-carbon and Carbon-heteroatom Bond Formation Reactions under Green Conditions. CURR ORG CHEM 2020. [DOI: 10.2174/1385272823666191202105820] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
:The development of C-C and C-heteroatom (C-N, C-O and C-P) bond reactions is a field of significant interest and has received momentous attention in modern organic chemistry. These reactions have been exploited in the synthesis of pharmaceuticals, agrochemicals and molecules of interest in materials science. With the increasing awareness of global warming and the use of renewable energies, it is of paramount importance to reduce the usage of hazardous chemicals in both industrial and academic research and to achieve a healthier environment through green practices. Green chemistry is a rapidly emerging approach that shows us a path for the sustainable growth of future science and technologies. In the recent past, healthy growth has been recorded in a number of organic reactions in aqueous media, which are environment-friendly and energy conserving. This review documents the literature on the development of green methodologies involving the design of C-C, C-O, C-N and C-P bond formations of coupling and condensed reactions. It emphasizes the exceptional practices and important advances achieved using alternative green tools, such as microwave (MW), high-speed ball milling (HSBM) and ultrasound irradiation techniques, and a variety of reusable catalysts and green solvents, with attention to water.
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Affiliation(s)
- Nagaraju Kerru
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban-4000, South Africa
| | - Suresh Maddila
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban-4000, South Africa
| | - Sreekantha B. Jonnalagadda
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban-4000, South Africa
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Mondal A, Bhowmick KC. Asymmetric Direct Aldol Reaction Catalyzed by (1R, 2R)-(+)-1, 2- Diammonium Cyclohexane-L-tartrate in Water. CURRENT ORGANOCATALYSIS 2019. [DOI: 10.2174/2213337206666181227151140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
A cheap and commercially available organocatalyst, (1R, 2R)-(+)-1, 2-
diammonium cyclohexane-L-tartrate 1 was applied in direct aldol reaction in water. The organocatalyst
1 afforded aldol products from cyclohexanone and substituted aromatic aldehydes with high
yield (up to 90%) and good stereoselectivity (up to 99% ee and up to 11.5:1 dr) in large volume of
water (10 ml).
Methods:
The same aldol reaction when carried out in the presence of more expensive organocatalyst
e.g. (1R, 2R)-(+)-1,2-diaminocyclohexane and 1,6-hexanediaoic acid as acid additive furnished the
aldol products with only 20% yield, 2:1 anti/syn ratio and 92% ee.
Results and Conclusion:
In summary, we have applied a reasonably cheap and commercially available
organocatalyst 1 for highly enantioselective direct aldol reaction in water at room temperature.
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Affiliation(s)
- Anirban Mondal
- Division of Organic Synthesis, Department of Chemistry, Visva-Bharati (A Central University), Santiniketan-731 235, West Bengal, India
| | - Kartick Chandra Bhowmick
- Division of Organic Synthesis, Department of Chemistry, Visva-Bharati (A Central University), Santiniketan-731 235, West Bengal, India
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Dendrimeric α,β-dipeptidic conjugates as organocatalysts in the asymmetric Michael addition reaction of isobutyraldehyde to N-phenylmaleimides. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-018-2338-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Unnatural tripeptide as highly enantioselective organocatalyst for asymmetric aldol reaction of isatins. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2018.12.049] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Karimi B, Tavakolian M, Akbari M, Mansouri F. Ionic Liquids in Asymmetric Synthesis: An Overall View from Reaction Media to Supported Ionic Liquid Catalysis. ChemCatChem 2018. [DOI: 10.1002/cctc.201701919] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Babak Karimi
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); Zanjan 45137-66731 Iran
- Research Center for Basic Sciences & Modern Technologies (RBST); Institute for Advanced Studies in Basic Sciences (IASBS); Zanjan 45137-66731 Iran
| | - Mina Tavakolian
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); Zanjan 45137-66731 Iran
| | - Maryam Akbari
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); Zanjan 45137-66731 Iran
| | - Fariborz Mansouri
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); Zanjan 45137-66731 Iran
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