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Nugent TC, Vos AE, Hussain I, El Damrany Hussein HA, Goswami F. A 2000 to 2020 Practitioner's Guide to Chiral Amine‐Based Enantioselective Aldol Reactions: Ketone Substrates, Best Methods, in Water Reaction Environments, and Defining Nuances. European J Org Chem 2022. [DOI: 10.1002/ejoc.202100529] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Thomas C. Nugent
- Department of Life Sciences and Chemistry Jacobs University Bremen 28759 Bremen Germany
| | - Alice E. Vos
- Department of Life Sciences and Chemistry Jacobs University Bremen 28759 Bremen Germany
| | - Ishtiaq Hussain
- Department of Pharmacy Abbottabad University of Science and Technology Havelian Abbottabad 22010 Pakistan
| | | | - Falguni Goswami
- Department of Life Sciences and Chemistry Jacobs University Bremen 28759 Bremen Germany
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2
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Aluminum Complexes Based on Tridentate Amidoalkoxide NNO-Ligands: Synthesis, Structure, and Properties. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.08.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Wang ZY, Ban SR, Yang MC, Li QS. Highly enantioselective Michael addition of cyclohexanone to nitroolefins catalyzed by pyrrolidine-based bifunctional benzoylthiourea in water. Chirality 2016; 28:721-727. [PMID: 27791318 DOI: 10.1002/chir.22648] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 08/03/2016] [Accepted: 09/15/2016] [Indexed: 11/07/2022]
Abstract
Organocatalysis and aqueous reactions are identified as the focus of the greening of chemistry. Combining these two strategies effectively remains an interesting challenge in organic synthesis. Herein, we used pyrrolidine-based benzoylthiourea 1c to catalyze the asymmetric Michael addition of cyclohexanone to various nitroolefins in water to afford the corresponding compounds in moderate to good yields, and with excellent diastereoselectivities (up to >99:1 dr) and enantioselectivities (up to 99% ee).
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Affiliation(s)
- Zhen-Yu Wang
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, People's Republic of China
| | - Shu-Rong Ban
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, People's Republic of China.
| | - Meng-Chen Yang
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, People's Republic of China
| | - Qing-Shan Li
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, People's Republic of China.
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4
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Guo JT, Xiang Y, Guan Z, He YH. Papain-catalyzed aldol reaction for the synthesis of trifluoromethyl carbinol derivatives. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2016.05.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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5
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Kodadek T, McEnaney PJ. Towards vast libraries of scaffold-diverse, conformationally constrained oligomers. Chem Commun (Camb) 2016; 52:6038-59. [PMID: 26996593 PMCID: PMC4846527 DOI: 10.1039/c6cc00617e] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
There is great interest in the development of probe molecules and drug leads that would bind tightly and selectively to protein surfaces that are difficult to target with traditional molecules, such as those involved in protein-protein interactions. The currently available evidence suggests that this will require molecules that are larger and have quite different chemical properties than typical Lipinski-compliant molecules that target enzyme active sites. We describe here efforts to develop vast libraries of conformationally constrained oligomers as a potentially rich source of these molecules.
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Affiliation(s)
- Thomas Kodadek
- Departments of Chemistry and Cancer Biology, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA.
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6
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Reddy UVS, Chennapuram M, Seki C, Kwon E, Okuyama Y, Nakano H. Catalytic Efficiency of Primary β-Amino Alcohols and Their Derivatives in Organocatalysis. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600164] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ummareddy Venkata Subba Reddy
- Synthetic Organic Chemistry Lab; Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Madhu Chennapuram
- Synthetic Organic Chemistry Lab; Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Chigusa Seki
- Synthetic Organic Chemistry Lab; Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran 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
| | - Yuko Okuyama
- Tohoku Pharmaceutical University; 4-4-1 Komatsushima, Aoba-ku 981-8558 Sendai Japan
| | - Hiroto Nakano
- Synthetic Organic Chemistry Lab; Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
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7
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Luridiana A, Frongia A, Aitken DJ, Guillot R, Sarais G, Secci F. Deracemizing organocatalyzed Michael addition reactions of 2-(arylthio)cyclobutanones with β-nitrostyrenes. Org Biomol Chem 2016; 14:3394-403. [PMID: 26947186 DOI: 10.1039/c6ob00160b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Organocatalyzed Michael addition reactions of 2-(arylthio)cyclobutanones with trans-β-nitrostyrenes have been carried out using a bifunctional thiourea-primary amine catalyst, providing diastereoisomerically and enantiomerically enriched 2-alkyl-2-(arylthio)cyclobutanones having two contiguous stereocenters of which one is a chiral quaternary center. The absolute configuration of these novel adducts was assigned by X-ray diffraction analysis and a transition-state model is proposed to explain the observed stereoselectivities.
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Affiliation(s)
- Alberto Luridiana
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Complesso Universitario di Monserrato, Monserrato (Ca), Italy.
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8
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Riaño I, Díaz E, Uria U, Reyes E, Carrillo L, Vicario JL. Organocatalytic enantio- and diastereoselective synthesis of 3,5-disubstituted prolines. Chem Commun (Camb) 2016; 52:2330-3. [DOI: 10.1039/c5cc09329e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The asymmetric synthesis of substituted pyrrolidines has been accomplished using a novel organocatalytic cyclization reaction promoted by aCinchonaalkaloid base primary amine.
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Affiliation(s)
- Iker Riaño
- Department of Organic Chemistry II
- University of the Basque Country (UPV/EHU)
- 48080 Bilbao
- Spain
| | - Estibaliz Díaz
- Department of Organic Chemistry II
- University of the Basque Country (UPV/EHU)
- 48080 Bilbao
- Spain
| | - Uxue Uria
- Department of Organic Chemistry II
- University of the Basque Country (UPV/EHU)
- 48080 Bilbao
- Spain
| | - Efraím Reyes
- Department of Organic Chemistry II
- University of the Basque Country (UPV/EHU)
- 48080 Bilbao
- Spain
| | - Luisa Carrillo
- Department of Organic Chemistry II
- University of the Basque Country (UPV/EHU)
- 48080 Bilbao
- Spain
| | - Jose L. Vicario
- Department of Organic Chemistry II
- University of the Basque Country (UPV/EHU)
- 48080 Bilbao
- Spain
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9
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Water: the most versatile and nature’s friendly media in asymmetric organocatalyzed direct aldol reactions. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.09.009] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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10
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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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11
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Moteki SA, Maruyama H, Nakayama K, Li HB, Petrova G, Maeda S, Morokuma K, Maruoka K. Positive Effect of Water in Asymmetric Direct Aldol Reactions with Primary Amine Organocatalyst: Experimental and Computational Studies. Chem Asian J 2015; 10:2112-6. [DOI: 10.1002/asia.201500078] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Shin A. Moteki
- Laboratory of Synthetic Organic Chemistry and Special Laboratory of Organocatalytic Chemistry; Department of Chemistry, Graduate School of Science; Kyoto University, Sakyo; Kyoto 606-8502 Japan), Fax: (+81) 75-753-4041
| | - Hiroki Maruyama
- Laboratory of Synthetic Organic Chemistry and Special Laboratory of Organocatalytic Chemistry; Department of Chemistry, Graduate School of Science; Kyoto University, Sakyo; Kyoto 606-8502 Japan), Fax: (+81) 75-753-4041
| | - Keiji Nakayama
- Laboratory of Synthetic Organic Chemistry and Special Laboratory of Organocatalytic Chemistry; Department of Chemistry, Graduate School of Science; Kyoto University, Sakyo; Kyoto 606-8502 Japan), Fax: (+81) 75-753-4041
| | - Hai-Bei Li
- Fukui Institute for Fundamental Chemistry; Kyoto University, Sakyo; Kyoto 606-8103 Japan
- School of Ocean; Shandong University; Weihai 264209 China
| | - Galina Petrova
- Fukui Institute for Fundamental Chemistry; Kyoto University, Sakyo; Kyoto 606-8103 Japan
| | - Satoshi Maeda
- Department of Chemistry, Faculty of Science; Hokkaido University; Sapporo 060-0810 Japan
| | - Keiji Morokuma
- Fukui Institute for Fundamental Chemistry; Kyoto University, Sakyo; Kyoto 606-8103 Japan
| | - Keiji Maruoka
- Laboratory of Synthetic Organic Chemistry and Special Laboratory of Organocatalytic Chemistry; Department of Chemistry, Graduate School of Science; Kyoto University, Sakyo; Kyoto 606-8502 Japan), Fax: (+81) 75-753-4041
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12
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Zong H, Huang H, Bian G, Song L. Fine-Tuning the Structures of Chiral Diamine Ligands in the Catalytic Asymmetric Aldol Reactions of Trifluoromethyl Aromatic Ketones with Linear Aliphatic Ketones. J Org Chem 2014; 79:11768-73. [DOI: 10.1021/jo5022103] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hua Zong
- The Key Laboratory of Coal
to Ethylene Glycol and Its Related Technology, the State Key Lab of
Structural Chemistry, Fujian Institute of Research on the Structure
of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Huayin Huang
- The Key Laboratory of Coal
to Ethylene Glycol and Its Related Technology, the State Key Lab of
Structural Chemistry, Fujian Institute of Research on the Structure
of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Guangling Bian
- The Key Laboratory of Coal
to Ethylene Glycol and Its Related Technology, the State Key Lab of
Structural Chemistry, Fujian Institute of Research on the Structure
of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Ling Song
- The Key Laboratory of Coal
to Ethylene Glycol and Its Related Technology, the State Key Lab of
Structural Chemistry, Fujian Institute of Research on the Structure
of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
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13
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Yolacan C, Mavis ME, Aydogan F. Evaluation of mono- and dipeptides as organocatalysts for enantioselective aldol reaction. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.04.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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14
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Enantioselective aldol reactions of α,β-unsaturated ketones with trifluoroacetophenone catalyzed by a chiral primary amine. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2014.05.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Stereocontrolled synthesis and functionalization of cyclobutanes and cyclobutanones. Molecules 2013; 18:15541-72. [PMID: 24352013 PMCID: PMC6269998 DOI: 10.3390/molecules181215541] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 12/09/2013] [Accepted: 12/11/2013] [Indexed: 02/02/2023] Open
Abstract
In the last decade a certain number of new cyclobutane and cyclobutanone synthesis and functionalization protocols have been published. Organo- and biocatalyzed eco-friendly approaches to cyclobutane-containing molecules have been developed with interesting results. Also, successful new total synthesis of bioactive compounds and drugs have been recently reported where a four membered ring represented the key intermediate. Therefore, the rising interest in this field represents a great point of discussion for the scientific community, disclosing the synthetic potential of strained four membered ring carbocyclic compounds. Herein we report a critical survey on the literature concerning the enantiocontrolled synthesis and functionalization of cyclobutane derivatives, with particular attention to metal-free, low impact methodologies, published during the period 2000-2013.
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Direct asymmetric aldol reaction of cyclohexanone with aldehydes catalyzed by chiral trans-cyclohexanediamine l-tartrate salt. MONATSHEFTE FUR CHEMIE 2013. [DOI: 10.1007/s00706-012-0821-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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17
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Mailhol D, Duque MDMS, Raimondi W, Bonne D, Constantieux T, Coquerel Y, Rodriguez J. Enantioselective Organocatalytic Michael Addition of Cyclobutanones to Nitroalkenes. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200658] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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18
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Braun M. Die Diaryl(oxy)methyl-Gruppe: mehr als ein unbeteiligter Zuschauer in chiralen Auxiliaren, Katalysatoren und Dotierstoffen. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201105127] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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19
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Braun M. The Diaryl(oxy)methyl Group: More than an Innocent Bystander in Chiral Auxiliaries, Catalysts, and Dopants. Angew Chem Int Ed Engl 2012; 51:2550-62. [DOI: 10.1002/anie.201105127] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Indexed: 01/13/2023]
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Miura T, Kasuga H, Imai K, Ina M, Tada N, Imai N, Itoh A. Highly efficient asymmetric aldol reaction in brine using a fluorous sulfonamide organocatalyst. Org Biomol Chem 2012; 10:2209-13. [PMID: 22331195 DOI: 10.1039/c2ob06955e] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Tsuyoshi Miura
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan.
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21
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Aitken DJ, Bernard AM, Capitta F, Frongia A, Guillot R, Ollivier J, Piras PP, Secci F, Spiga M. Very high stereoselectivity in organocatalyzed desymmetrizing aldol reactions of 3-substituted cyclobutanones. Org Biomol Chem 2012; 10:5045-8. [DOI: 10.1039/c2ob25813g] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Miura T, Imai K, Kasuga H, Ina M, Tada N, Imai N, Itoh A. Direct asymmetric aldol reactions in brine with recyclable fluorous β-aminosulfonamide organocatalysts. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.06.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Miura T, Ina M, Imai K, Nakashima K, Yasaku Y, Koyata N, Murakami Y, Imai N, Tada N, Itoh A. Direct asymmetric aldol reactions in water with a β-aminosulfonamide organocatalyst. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.05.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Tian H, Gao JL, Xu H, Zheng LY, Huang WB, Liu QW, Zhang SQ. Proline-based dipeptides as efficient organocatalysts for asymmetric aldol reactions in brine. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.06.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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26
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Qin L, Li L, Yi L, Da CS, Zhou YF. Direct asymmetric N-specific reaction of nitrosobenzene with aldehydes catalyzed by a chiral primary amine-based organocatalyst. Chirality 2011; 23:527-33. [DOI: 10.1002/chir.20960] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2010] [Accepted: 02/23/2011] [Indexed: 11/11/2022]
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27
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Daka P, Xu Z, Alexa A, Wang H. Primary amine-metal Lewis acid bifunctional catalysts based on a simple bidentate ligand: direct asymmetric aldol reaction. Chem Commun (Camb) 2011; 47:224-6. [DOI: 10.1039/c0cc00917b] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Kanemitsu T, Umehara A, Miyazaki M, Nagata K, Itoh T. L-t-Leucine-Catalyzed Direct Asymmetric Aldol Reaction of Cyclic Ketones. European J Org Chem 2010. [DOI: 10.1002/ejoc.201001413] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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29
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Genov M, Martínez-Ilarduya JM, Calvillo-Barahona M, Espinet P. Highly Enantioselective Addition of Dialkylzinc to Trifluoroacetophenones, Catalyzed by 1,2-Diamines. Synthesis of Key Fragments of Inhibitors of the Enzyme 11β-HSD1 and Kinetic Analysis of the Process. Organometallics 2010. [DOI: 10.1021/om1007727] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Miroslav Genov
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, E-47071 Valladolid, Spain
| | - Jesús M. Martínez-Ilarduya
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, E-47071 Valladolid, Spain
| | - Mercedes Calvillo-Barahona
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, E-47071 Valladolid, Spain
| | - Pablo Espinet
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, E-47071 Valladolid, Spain
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30
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Huang WB, Liu QW, Zheng LY, Zhang SQ. Novel Primary Amine Organocatalysts Derived from Cinchona Alkaloids for Asymmetric Direct Aldol Reactions in Brine. Catal Letters 2010. [DOI: 10.1007/s10562-010-0478-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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31
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Demuynck ALW, Vanderleyden J, Sels BF. Direct Asymmetric syn-Aldol Reactions of Linear Aliphatic Ketones with Primary Amino Acid-Derived Diamines. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000419] [Citation(s) in RCA: 21] [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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32
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Inokoishi Y, Sasakura N, Nakano K, Ichikawa Y, Kotsuki H. A New Powerful Strategy for the Organocatalytic Asymmetric Construction of a Quaternary Carbon Stereogenic Center. Org Lett 2010; 12:1616-9. [DOI: 10.1021/ol100350w] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yogo Inokoishi
- Laboratory of Natural Product Chemistry, Faculty of Science, Kochi University, Akebono-cho, Kochi 780-8520, Japan
| | - Niiha Sasakura
- Laboratory of Natural Product Chemistry, Faculty of Science, Kochi University, Akebono-cho, Kochi 780-8520, Japan
| | - Keiji Nakano
- Laboratory of Natural Product Chemistry, Faculty of Science, Kochi University, Akebono-cho, Kochi 780-8520, Japan
| | - Yoshiyasu Ichikawa
- Laboratory of Natural Product Chemistry, Faculty of Science, Kochi University, Akebono-cho, Kochi 780-8520, Japan
| | - Hiyoshizo Kotsuki
- Laboratory of Natural Product Chemistry, Faculty of Science, Kochi University, Akebono-cho, Kochi 780-8520, Japan
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Nugent TC, Umar MN, Bibi A. Picolylamine as an organocatalyst template for highly diastereo- and enantioselective aqueous aldol reactions. Org Biomol Chem 2010; 8:4085-9. [PMID: 20623075 DOI: 10.1039/c0ob00049c] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Thomas C Nugent
- Department of Chemistry, School of Engineering and Science, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany.
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