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Deepa, Singh S. Prolinamide and Prolinamide Tagged with Ionic Liquid Intercalated in Bentonite Clay, a Recyclable Catalyst for Asymmetric Aldol Reactions. ChemistrySelect 2023. [DOI: 10.1002/slct.202202379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Deepa
- Department of Chemistry University of Delhi Delhi 110007 India
| | - Surendra Singh
- Department of Chemistry University of Delhi Delhi 110007 India
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2
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Al-Majid AM, Alammari AS, Alshahrani S, Haukka M, Islam MS, Barakat A. Cu(ii)-thiophene-2,5-bis(amino-alcohol) mediated asymmetric Aldol reaction and Domino Knoevenagel Michael cyclization: a new highly efficient Lewis acid catalyst. RSC Adv 2022; 12:6149-6165. [PMID: 35424540 PMCID: PMC8982094 DOI: 10.1039/d2ra00674j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 02/09/2022] [Indexed: 11/24/2022] Open
Abstract
The highly efficient Lewis acid-catalytic system Cu(ii)-thiophene-2,5-bis(amino-alcohol) has been developed for enantioselective Aldol reaction of isatin derivatives with ketones. The new catalytic system also proved to be highly enantioselective for the one pot three-component Domino Knoevenagel Michael cyclization reaction of substituted isatin with malononitrile and ethylacetoacetate. The chiral ligand (2S,2′S)-2,2′-((thiophene-2,5-diylbis(methylene))bis(azanediyl))bis(3-phenylpropan-1-ol) (L1) in combination with Cu(OAc)2·H2O employed as a new Lewis acid catalyst, furnished 3-substituted-3-hydroxyindolin-2-ones derivatives (3a–s) in good to excellent yields (81–99%) with high enantioselectivities (up to 96% ee) and spiro[4H-pyran-3,3-oxindole] derivatives (6a–l) in excellent yields (89–99%) with high ee (up to 95%). These aldol products and spiro-oxindoles constitute a core structural motif in a large number of pharmaceutically active molecules and natural products. The highly efficient Lewis acid-catalytic system Cu(ii)-thiophene-2,5-bis(amino-alcohol) has been developed for enantioselective Aldol reaction of isatin derivatives with ketones.![]()
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Affiliation(s)
- Abdullah Mohammed Al-Majid
- Department of Chemistry, College of Science, King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia +966-61-1467-5992
| | - Abdullah Saleh Alammari
- Department of Chemistry, College of Science, King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia +966-61-1467-5992
| | - Saeed Alshahrani
- Department of Chemistry, College of Science, King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia +966-61-1467-5992
| | - Matti Haukka
- Department of Chemistry, University of Jyväskylä P. O. Box 35 FI-40014 Jyväskylä Finland
| | - Mohammad Shahidul Islam
- Department of Chemistry, College of Science, King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia +966-61-1467-5992
| | - Assem Barakat
- Department of Chemistry, College of Science, King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia +966-61-1467-5992
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3
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Chan YC, Wang X, Lam YP, Wong J, Tse YLS, Yeung YY. A Catalyst-Controlled Enantiodivergent Bromolactonization. J Am Chem Soc 2021; 143:12745-12754. [PMID: 34350758 DOI: 10.1021/jacs.1c05680] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A catalyst-controlled enantiodivergent bromolactonization of olefinic acids has been developed. Quinine-derived amino-amides bearing the same chiral core but different achiral aryl substituents were used as the catalysts. Switching the methoxy substituent in the aryl amide system from meta- to ortho-position results in a complete switch in asymmetric induction to afford the desired lactone in good enantioselectivity and yield. Mechanistic studies, including chemical experiments and density functional theory calculations, reveal that the differences in steric and electronic effects of the catalyst substituent alter the reaction mechanism.
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Affiliation(s)
- Yuk-Cheung Chan
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
| | - Xinyan Wang
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
| | - Ying-Pong Lam
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
| | - Jonathan Wong
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
| | - Ying-Lung Steve Tse
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
| | - Ying-Yeung Yeung
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
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4
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Gavendova M, Lennon CM, Coffey L, Manesiotis P, Kinsella M. Novel
β
‐amino Amide Organocatalysts for the Synthesis of Pharmaceutically Relevant Oxindoles. ChemistrySelect 2019. [DOI: 10.1002/slct.201901360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mariana Gavendova
- Pharmaceutical and Molecular Biotechnology Research CentreDepartment of ScienceWaterford Institute of Technology Cork Road, Waterford Ireland
| | - Claire M. Lennon
- Pharmaceutical and Molecular Biotechnology Research CentreDepartment of ScienceWaterford Institute of Technology Cork Road, Waterford Ireland
| | - Lee Coffey
- Pharmaceutical and Molecular Biotechnology Research CentreDepartment of ScienceWaterford Institute of Technology Cork Road, Waterford Ireland
| | - Panagiotis Manesiotis
- School of Chemistry and Chemical EngineeringQueen's University BelfastDavid Keir Building Stranmillis Road, Belfast BT9 5AG United Kingdom
| | - Michael Kinsella
- Pharmaceutical and Molecular Biotechnology Research CentreDepartment of ScienceWaterford Institute of Technology Cork Road, Waterford Ireland
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5
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Abstract
This review covers diastereo- and enantiodivergent catalyzed reactions in acyclic and cyclic systems using metal complexes or organocatalysts. Among them, nucleophilic addition to carbon-carbon and carbon-nitrogen double bonds, α-functionalization of carbonyl compounds, allylic substitutions, and ring opening of oxiranes and aziridines are considered. The diastereodivergent synthesis of alkenes from alkynes is also included. Finally, stereodivergent intramolecular and intermolecular cycloadditions and other cyclizations are also reported.
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Affiliation(s)
- Irina P Beletskaya
- Chemistry Department , M. V. Lomonosov Moscow State University , Leninskie Gory 1 , 119992 Moscow , Russia
| | - Carmen Nájera
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , E-03080 Alicante , Spain
| | - Miguel Yus
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , E-03080 Alicante , Spain
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6
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Wan Y, Yuan R, Cui H, Zhang XX, Li MQ, Xu JB, Dou PF, Zhang LY, Wu H. Glucose-containing imidazolium salt-catalyzed cross-aldol reaction of isatins and unactivated ketones. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-017-3246-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Park J, Jean A, Chen DYK. Organocatalytic and Late-Stage CH-Functionalization Enabled Asymmetric Synthesis of Communesin F and Putative Communesins. J Org Chem 2017; 83:6936-6957. [PMID: 29090575 DOI: 10.1021/acs.joc.7b02426] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Herein we report the total syntheses of communesin F and putative members of the communesin family of polycyclic bis-aminal alkaloids. The successful strategy featured a novel organocatalytic reaction between two oxindole subunits to cast, after extensive optimization, the all-carbon vicinal quaternary stereocenters of the target molecule with high enantiocontrol. The resulting bis-oxindole intermediate further underwent a Ti(O iPr)4-mediated dehydrative skeletal rearrangement to furnish the communesin core structure. Consider the ready availability and low-cost of unsubstituted isatin, and the inferior organocatalytic reaction employing a bromo-substituted substrate, a Pd(OAc)2-catalyzed and oxalamide-directed aryl CH-alkenylation reaction was implemented to assemble the complete skeletal backbone of the target molecule. Collectively, the synthetic technologies disclosed herein constitute the first asymmetric organocatalytic approach to the communesins, together with a highly effective late-stage CH-functionalization in stark contrast to the bromoarene substrates employed in all of the past synthetic work.
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Affiliation(s)
- Jisook Park
- Department of Chemistry , Seoul National University , Gwanak-1 Gwanak-ro, Gwanak-gu , Seoul 151-742 , South Korea
| | - Alexandre Jean
- Department of Chemistry , Seoul National University , Gwanak-1 Gwanak-ro, Gwanak-gu , Seoul 151-742 , South Korea
| | - David Y-K Chen
- Department of Chemistry , Seoul National University , Gwanak-1 Gwanak-ro, Gwanak-gu , Seoul 151-742 , South Korea
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8
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2-Azanorbornane-based amine organocatalyst for enantioselective aldol reaction of isatins with ketones. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.08.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Mandal S, Mandal S, Ghosh SK, Ghosh A, Saha R, Banerjee S, Saha B. Review of the aldol reaction. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2016.1206938] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Swagata Mandal
- Homogeneous Catalysis Laboratory, Department of Chemistry, University of Burdwan, Golapbag, Burdwan, India
| | - Sangita Mandal
- Homogeneous Catalysis Laboratory, Department of Chemistry, University of Burdwan, Golapbag, Burdwan, India
| | - Sumanta K. Ghosh
- Homogeneous Catalysis Laboratory, Department of Chemistry, University of Burdwan, Golapbag, Burdwan, India
| | - Aniruddha Ghosh
- Homogeneous Catalysis Laboratory, Department of Chemistry, University of Burdwan, Golapbag, Burdwan, India
| | - Rumpa Saha
- Department of Chemistry, TDB College Raniganj, Raniganj, India
| | | | - Bidyut Saha
- Homogeneous Catalysis Laboratory, Department of Chemistry, University of Burdwan, Golapbag, Burdwan, India
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Kimura J, Subba Reddy UV, Kohari Y, Seki C, Mawatari Y, Uwai K, Okuyama Y, Kwon E, Tokiwa M, Takeshita M, Iwasa T, Nakano H. Simple Primary Amino Amide Organocatalyst for Enantioselective Aldol Reactions of Isatins with Ketones. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600414] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jo Kimura
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Ummareddy Venkata Subba Reddy
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Yoshihito Kohari
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Chigusa Seki
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Yasuteru Mawatari
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Koji Uwai
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Yuko Okuyama
- Tohoku Pharmaceutical University; 4-4-1 Komatsushima, Aoba-ku 981-8585 Sendai Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules; Graduate School of Sciences; Tohoku University; 6-3 Aoba, Aramaki, Aoba-ku 980-8578 Sendai Japan
| | - Michio Tokiwa
- Tokiwakai Group; 62 Numajiri Tsuduri-chou Uchigo 973-8053 Iwaki Japan
| | | | - Tatsuo Iwasa
- Division of Engineering for Composite Functions; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Hiroto Nakano
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
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Kabeshov MA, Kysilka O, Rulíšek L, Suleimanov YV, Bella M, Malkov AV, Kočovský P. Cross-Aldol Reaction of Isatin with Acetone Catalyzed by Leucinol: A Mechanistic Investigation. Chemistry 2015; 21:12026-33. [PMID: 26147182 DOI: 10.1002/chem.201500536] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Indexed: 11/09/2022]
Abstract
Comprehensive mechanistic studies on the enantioselective aldol reaction between isatin (1 a) and acetone, catalyzed by L-leucinol (3 a), unraveled that isatin, apart from being a substrate, also plays an active catalytic role. Conversion of the intermediate oxazolidine 4 into the reactive syn-enamine 6, catalyzed by isatin, was identified as the rate-determining step by both the calculations (ΔG(≠) =26.1 kcal mol(-1) for the analogous L-alaninol, 3 b) and the kinetic isotope effect (kH /kD =2.7 observed for the reaction using [D6 ]acetone). The subsequent reaction of the syn-enamine 6 with isatin produces (S)-2 a (calculated ΔG(≠) =11.6 kcal mol(-1) ). The calculations suggest that the overall stereochemistry is controlled by two key events: 1) the isatin-catalyzed formation of the syn-enamine 6, which is thermodynamically favored over its anti-rotamer 7 by 2.3 kcal mol(-1) ; and 2) the high preference of the syn-enamine 6 to produce (S)-2 a on reaction with isatin (1 a) rather than its enantiomer (ΔΔG(≠) =2.6 kcal mol(-1) ).
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Affiliation(s)
- Mikhail A Kabeshov
- Department of Chemistry, Loughborough University, Loughborough, Leics LE11 3TU (UK). .,Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW (UK).
| | - Ondřej Kysilka
- FARMAK, Klášterní Hradisko, 77900 Olomouc (Czech Republic)
| | - Lubomír Rulíšek
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Prague 6 (Czech Republic)
| | - Yury V Suleimanov
- Computation-based Science and Technology Research Center, Cyprus Institute, 20 Kavafi Str., Nicosia 2121 (Cyprus) & Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (USA)
| | - Marco Bella
- Department of Chemistry, "Sapienza" University of Rome, Piazzale Aldo Moro 5, 00185 Rome (Italy)
| | - Andrei V Malkov
- Department of Chemistry, Loughborough University, Loughborough, Leics LE11 3TU (UK).
| | - Pavel Kočovský
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Prague 6 (Czech Republic). .,Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE 10691 Stockholm (Sweden) & Department of Organic Chemistry, Charles University, Hlavova 8, 12843 Prague 2 (Czech Republic).
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12
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Bañn-Caballero A, Flores-Ferrándiz J, Guillena G, Nájera C. Enantioselective solvent-free synthesis of 3-alkyl-3-hydroxy-2-oxoindoles catalyzed by binam-prolinamides. Molecules 2015; 20:12901-12. [PMID: 26193246 PMCID: PMC6332192 DOI: 10.3390/molecules200712901] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 07/06/2015] [Accepted: 07/10/2015] [Indexed: 11/16/2022] Open
Abstract
BINAM-prolinamides are very efficient catalyst for the synthesis of non-protected and N-benzyl isatin derivatives by using an aldol reaction between ketones and isatins under solvent-free conditions. The results in terms of diastereo- and enantioselectivities are good, up to 99% de and 97% ee, and higher to those previously reported in the literature under similar reaction conditions. A high variation of the results is observed depending on the structure of the isatin and the ketone used in the process. While 90% of ee and 97% ee, respectively, is obtained by using (Ra)-BINAM-l-(bis)prolinamide as catalyst in the addition of cyclohexanone and α-methoxyacetone to free isatin, 90% ee is achieved for the reaction between N-benzyl isatin and acetone using N-tosyl BINAM-l-prolinamide as catalyst. This reaction is also carried out using a silica BINAM-l-prolinamide supported catalyst under solvent-free conditions, which can be reused up to five times giving similar results.
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Affiliation(s)
- Abraham Bañn-Caballero
- Departamento de Química Orgánica, Instituto de Síntesis Orgánica, Universidad de Alicante, Apdo. 99, Alicante E-03080, Spain.
| | - Jesús Flores-Ferrándiz
- Departamento de Química Orgánica, Instituto de Síntesis Orgánica, Universidad de Alicante, Apdo. 99, Alicante E-03080, Spain.
| | - Gabriela Guillena
- Departamento de Química Orgánica, Instituto de Síntesis Orgánica, Universidad de Alicante, Apdo. 99, Alicante E-03080, Spain.
| | - Carmen Nájera
- Departamento de Química Orgánica, Instituto de Síntesis Orgánica, Universidad de Alicante, Apdo. 99, Alicante E-03080, Spain.
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Mohammadi S, Heiran R, Herrera RP, Marqués-López E. Isatin as a Strategic Motif for Asymmetric Catalysis. ChemCatChem 2013. [DOI: 10.1002/cctc.201300050] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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14
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Yanagisawa A, Yoshida K. Development of Asymmetric Reactions Catalyzed by Chiral Organotin-Alkoxide Reagents. CHEM REC 2013; 13:117-27. [DOI: 10.1002/tcr.201200019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Indexed: 11/09/2022]
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15
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Synthesis and application of proline based organocatalyst for highly enantioselective aldol reaction by hydrogen bonding. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.123] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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Dalpozzo R, Bartoli G, Bencivenni G. Recent advances in organocatalytic methods for the synthesis of disubstituted 2- and 3-indolinones. Chem Soc Rev 2012; 41:7247-90. [DOI: 10.1039/c2cs35100e] [Citation(s) in RCA: 539] [Impact Index Per Article: 44.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Sai Prathima P, Srinivas K, Balaswamy K, Arundhathi R, Narsimha Reddy G, Sridhar B, Mohan Rao M, Likhar PR. Biscinchona alkaloid catalysed Henry reaction of isatins: Enantioselective synthesis of 3-hydroxy-3-(nitromethyl)indolin-2-ones. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.11.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Schenker S, Schneider C, Tsogoeva SB, Clark T. Assessment of Popular DFT and Semiempirical Molecular Orbital Techniques for Calculating Relative Transition State Energies and Kinetic Product Distributions in Enantioselective Organocatalytic Reactions. J Chem Theory Comput 2011; 7:3586-95. [PMID: 26598257 DOI: 10.1021/ct2002013] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The performance of computationally accessible levels of calculation for the transition states of organocatalytic reaction has been assessed. Reference post-Hartree-Fock single point energy calculations were used as standards for the gas-phase Born-Oppenheimer relative energies of pairs of alternative transition states that lead to the two product enantiomers. We show that semiempirical methods cannot even be relied on to yield qualitatively correct results. The geometries (optimized, for instance, with DFT) have a large impact on the results of high-level post-HF calculations, so that it is essential to use an adequate DFT technique and basis set. DFT can yield quantitatively correct results that are consistent with post-HF calculations if functionals that consider dispersion are used. Geometries for large systems show larger errors than those for smaller ones but are treated better by functionals such as M06-2X and w97Bxd that include dispersion implicitly or explicitly. Local correlation techniques introduce errors of comparable magnitude to those given by different levels of geometry optimization. We recommend RICC2/TZVP//M06-2X/TZVP, RI-MP2/TZVP// M06-2X/TZVP, and M06-2X/TZVP// M06-2X/TZVP calculations in that order, depending on the size of the system.
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Affiliation(s)
- Sebastian Schenker
- Computer-Chemie-Centrum der Friedrich-Alexander-Universität Erlangen-Nürnberg , Nägelsbachstrasse 25, 91052 Erlangen, Germany.,Lehrstuhl I für Organische Chemie der Friedrich-Alexander-Universität Erlangen-Nürnberg , Henkestrasse 25, 91054 Erlangen, Germany
| | - Christopher Schneider
- Lehrstuhl I für Organische Chemie der Friedrich-Alexander-Universität Erlangen-Nürnberg , Henkestrasse 25, 91054 Erlangen, Germany
| | - Svetlana B Tsogoeva
- Lehrstuhl I für Organische Chemie der Friedrich-Alexander-Universität Erlangen-Nürnberg , Henkestrasse 25, 91054 Erlangen, Germany
| | - Timothy Clark
- Computer-Chemie-Centrum der Friedrich-Alexander-Universität Erlangen-Nürnberg , Nägelsbachstrasse 25, 91052 Erlangen, Germany.,Centre for Molecular Design, University of Portsmouth , Mercantile House, Portsmouth PO1 2EG, United Kingdom
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Pearson AJ, Panda S. N-Prolinylanthranilamide Pseudopeptides as Bifunctional Organocatalysts for Asymmetric Aldol Reactions. Org Lett 2011; 13:5548-51. [DOI: 10.1021/ol202284n] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anthony J. Pearson
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Santanu Panda
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106, United States
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20
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Li MQ, Zhang JX, Huang XF, Wu B, Liu ZM, Chen J, Li XD, Wang XW. Asymmetric Nitroaldol Reactions of Nitroalkanes with Isatins Catalyzed by Bifunctional Cinchona Alkaloid Derivatives. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100824] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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21
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Screening of simple N-aryl and N-heteroaryl pyrrolidine amide organocatalysts for the enantioselective aldol reaction of acetone with isatin. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.07.016] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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22
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Abstract
The reversible reaction of primary or secondary amines with enolizable aldehydes or ketones affords nucleophilic intermediates, enamines. With chiral amines, catalytic enantioselective reactions via enamine intermediates become possible. In this review, structure-activity relationships and the scope as well as current limitations of enamine catalysis are discussed.
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Diastereoselective Mukaiyama aldol reaction of (N-alkyl) isatins with 2-(trimethylsilyloxy)furan by using lanthanum triflate. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.02.033] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Guan XY, Wei Y, Shi M. Construction of Chiral Quaternary Carbon through Morita-Baylis-Hillman Reaction: An Enantioselective Approach to 3-Substituted 3-Hydroxyoxindole Derivatives. Chemistry 2010; 16:13617-21. [DOI: 10.1002/chem.201002240] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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25
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Aikawa K, Mimura S, Numata Y, Mikami K. Palladium-Catalyzed Enantioselective Ene and Aldol Reactions with Isatins, Keto Esters, and Diketones: Reliable Approach to Chiral Tertiary Alcohols. European J Org Chem 2010. [DOI: 10.1002/ejoc.201001356] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Bartók M. Unexpected inversions in asymmetric reactions: reactions with chiral metal complexes, chiral organocatalysts, and heterogeneous chiral catalysts. Chem Rev 2010; 110:1663-705. [PMID: 19873975 DOI: 10.1021/cr9002352] [Citation(s) in RCA: 332] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mihály Bartók
- Department of Organic Chemistry, University of Szeged, Stereochemistry Research Group of the Hungarian Academy of Sciences, Dóm tér 8, H-6720 Szeged, Hungary
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Itoh J, Han S, Krische M. Enantioselective Allylation, Crotylation, and Reverse Prenylation of Substituted Isatins: Iridium-Catalyzed CC Bond-Forming Transfer Hydrogenation. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200902328] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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28
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Marcelli T, Hammar P, Himo F. Origin of Enantioselectivity in the Organocatalytic Reductive Amination of α-Branched Aldehydes. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200800613] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Angelici G, Corrêa RJ, Garden SJ, Tomasini C. Water influences the enantioselectivity in the proline or prolinamide-catalyzed aldol addition of acetone to isatins. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2008.12.007] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Itoh J, Han SB, Krische MJ. Enantioselective allylation, crotylation, and reverse prenylation of substituted isatins: iridium-catalyzed C-C bond-forming transfer hydrogenation. Angew Chem Int Ed Engl 2009; 48:6313-6. [PMID: 19606435 PMCID: PMC2846777 DOI: 10.1002/anie.200902328] [Citation(s) in RCA: 150] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Transfer hydrogenation of substituted isatins in the presence of allyl acetate, α-methyl allyl acetate or 1,1,-dimethylallene employing an ortho -cyclometallated iridium catalyst modified by CTH-(R )-P-PHOS provides products of carbonyl allylation, crotylation and reverse prenylation, respectively, in highly enantiomerically enriched form. These studies represent the first use of activated ketones as electrophilic partners in asymmetric C-C bond forming transfer hydrogenation.
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Affiliation(s)
- Junji Itoh
- University of Texas at Austin, Department of Chemistry and Biochemistry, 1 University Station – A5300, Austin, TX 78712-1167 (USA)
| | - Soo Bong Han
- University of Texas at Austin, Department of Chemistry and Biochemistry, 1 University Station – A5300, Austin, TX 78712-1167 (USA)
| | - Michael J. Krische
- University of Texas at Austin, Department of Chemistry and Biochemistry, 1 University Station – A5300, Austin, TX 78712-1167 (USA)
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Nakamura S, Hara N, Nakashima H, Kubo K, Shibata N, Toru T. Enantioselective Synthesis of (R)-Convolutamydine A with NewN-Heteroarylsulfonylprolinamides. Chemistry 2008; 14:8079-81. [DOI: 10.1002/chem.200800981] [Citation(s) in RCA: 136] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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