1
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Szánti-Pintér E, Jirkalová L, Pohl R, Bednárová L, Kudova E. Stereoselective Reduction of Steroidal 4-Ene-3-ketones in the Presence of Biomass-Derived Ionic Liquids Leading to Biologically Important 5β-Steroids. ACS OMEGA 2024; 9:7043-7052. [PMID: 38371788 PMCID: PMC10870401 DOI: 10.1021/acsomega.3c08963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/19/2023] [Accepted: 01/23/2024] [Indexed: 02/20/2024]
Abstract
The stereoselective reduction of the steroidal 4-ene-3-ketone moiety (enone) affords the 5β-steroid backbone that is a key structural element of biologically important neuroactive steroids. Neurosteroids have been currently studied as novel and potent central nervous system drug-like compounds for the treatment of, e.g., postpartum depression. As a green methodology, we studied the palladium-catalyzed hydrogenation of steroidal 4-ene-3-ketones in the presence of ionic liquids derived from natural carboxylic acids. The hydrogenation proceeds with improved 5β-selectivity in the presence of tetrabutylammonium carboxylates as additives compared to the exclusive use of an organic solvent. Under optimal conditions, using tetrabutylammonium d-mandelate, the reduction of testosterone led to 5β-dihydrotestosterone in high yield and stereoselectivity and no byproduct formation was observed. Moreover, the catalyst could be recycled. The presence of additional substituents on the steroid backbone showed a significant effect on the 5β-selectivity.
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Affiliation(s)
- Eszter Szánti-Pintér
- Institute of Organic Chemistry
and Biochemistry of the Czech Academy of Sciences, Prague 166 10, Czech Republic
| | - Lada Jirkalová
- Institute of Organic Chemistry
and Biochemistry of the Czech Academy of Sciences, Prague 166 10, Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry
and Biochemistry of the Czech Academy of Sciences, Prague 166 10, Czech Republic
| | - Lucie Bednárová
- Institute of Organic Chemistry
and Biochemistry of the Czech Academy of Sciences, Prague 166 10, Czech Republic
| | - Eva Kudova
- Institute of Organic Chemistry
and Biochemistry of the Czech Academy of Sciences, Prague 166 10, Czech Republic
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2
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Zhang Y, Zhang S, Li R, Shen J, Jiang X, Aisa HA. A novel synthesis of tetrahydrocortisone 3-glucuronide. J Carbohydr Chem 2022. [DOI: 10.1080/07328303.2021.2023559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Yan Zhang
- State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, and Key Laboratory of Plant Resources and Chemistry in Arid Regions, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, P. R. China
- University of Chinese Academy of Sciences, Beijing, China
| | - Suqing Zhang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Rui Li
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jingshan Shen
- University of Chinese Academy of Sciences, Beijing, China
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Xiangrui Jiang
- University of Chinese Academy of Sciences, Beijing, China
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Haji A. Aisa
- State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, and Key Laboratory of Plant Resources and Chemistry in Arid Regions, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, P. R. China
- University of Chinese Academy of Sciences, Beijing, China
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3
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Mancino V, Croci F, Lozza AM, Cerra B, Gioiello A. A streamlined synthesis of the neurosteroid 3β-methoxypregnenolone assisted by a statistical experimental design and automation. REACT CHEM ENG 2020. [DOI: 10.1039/c9re00353c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The potential of integrating flow synthesizers, statistical design of experiments and automation has been exemplified to realize the streamlined etherification of pregnenolone to the neurosteroid 3β-methoxypregnenolone (MAP4343).
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Affiliation(s)
- Valentina Mancino
- Laboratory of Medicinal and Advanced Synthetic Chemistry (Lab MASC)
- Department of Pharmaceutical Sciences
- University of Perugia
- 06122 Perugia
- Italy
| | - Federico Croci
- Laboratory of Medicinal and Advanced Synthetic Chemistry (Lab MASC)
- Department of Pharmaceutical Sciences
- University of Perugia
- 06122 Perugia
- Italy
| | - Anna Maria Lozza
- Laboratory of Medicinal and Advanced Synthetic Chemistry (Lab MASC)
- Department of Pharmaceutical Sciences
- University of Perugia
- 06122 Perugia
- Italy
| | - Bruno Cerra
- Laboratory of Medicinal and Advanced Synthetic Chemistry (Lab MASC)
- Department of Pharmaceutical Sciences
- University of Perugia
- 06122 Perugia
- Italy
| | - Antimo Gioiello
- Laboratory of Medicinal and Advanced Synthetic Chemistry (Lab MASC)
- Department of Pharmaceutical Sciences
- University of Perugia
- 06122 Perugia
- Italy
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4
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Cautela J, Severoni E, Redondo-Gómez C, di Gregorio MC, Del Giudice A, Sennato S, Angelini R, D'Abramo M, Schillén K, Galantini L. C-12 vs C-3 substituted bile salts: An example of the effects of substituent position and orientation on the self-assembly of steroid surfactant isomers. Colloids Surf B Biointerfaces 2019; 185:110556. [PMID: 31704607 DOI: 10.1016/j.colsurfb.2019.110556] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/08/2019] [Accepted: 10/02/2019] [Indexed: 12/31/2022]
Abstract
Biomolecule derivatives are transversally used in nanotechnology. Deciphering their aggregation behavior is a crucial issue for the rational design of functional materials. To this end, it is necessary to build libraries of selectively functionalized analogues and infer general rules. In this work we enrich the highly applicative oriented collection of steroid derivatives, by reporting a rare example of C-12 selectively modified bile salt. While nature often exploits such position to encode functions, it is unusual and not trivial to prepare similar analogues in the laboratory. The introduction of a tert-butyl phenyl residue at C-12 provided a molecule with a self-assembly that remarkably switched from rigid pole-like structures to twisted ribbons at a biologically relevant critical temperature (∼25 °C). The system was characterized by microscopy and spectroscopy techniques and compared with the C-3 functionalized analogue. The twisted ribbons generate samples with a gel texture and a viscoelastic response. The parallel analysis of the two systems suggested that the observed thermoresponsive self-assemblies occur at similar critical temperatures and are probably dictated by the nature of the substituent, but involve aggregates with different structures depending on position and orientation of the substituent. This study highlights the self-assembly properties of two appealing thermoresponsive systems. Moreover, it adds fundamental insights hereto missing in the investigations of the relation between self-assembly and structure of synthetic steroids, which are valuable for the rational design of steroidal amphiphiles.
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Affiliation(s)
- Jacopo Cautela
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Emilia Severoni
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Carlos Redondo-Gómez
- Escuela de Química, Centro de Investigación en Electroquímica y Energía Química (CELEQ), Universidad de Costa Rica, San José, Costa Rica
| | | | | | - Simona Sennato
- CNR-ISC Sede Sapienza, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy; Department of Physics, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy
| | - Roberta Angelini
- CNR-ISC Sede Sapienza, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy; Department of Physics, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy
| | - Marco D'Abramo
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Karin Schillén
- Division of Physical Chemistry, Department of Chemistry, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden
| | - Luciano Galantini
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
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5
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Kratena N, Pilz SM, Weil M, Gmeiner G, Enev VS, Gärtner P. Synthesis and structural elucidation of a dehydrochloromethyltestosterone metabolite. Org Biomol Chem 2019; 16:2508-2521. [PMID: 29565074 DOI: 10.1039/c8ob00122g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The human urinary long-term metabolite "M3" (4-chloro-17β-hydroxymethyl-17α-methyl-18-norandrost-13-en-3-ol) of the common doping agent DHCMT has thus far been detected via GC/MS-MS, creating ambiguities concerning its absolute configuration. Its structure was elucidated via the synthesis of all eight possible stereoisomers with 17β-hydroxymethyl configuration. The highlights of the synthesis consist of a novel first generation approach to 4β-chloro-5β compounds as well as a divergent route which allows easy access to the remaining A-ring chlorohydrins.
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Affiliation(s)
- Nicolas Kratena
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria.
| | - Sarah M Pilz
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria.
| | - Matthias Weil
- Institute for Chemical Technologies and Analytics, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria
| | - Günter Gmeiner
- Doping Control Laboratory, Seibersdorf Labor GmbH, 2444 Seibersdorf, Austria
| | - Valentin S Enev
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria.
| | - Peter Gärtner
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria.
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6
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Hamasaka G, Tsuji H, Ehara M, Uozumi Y. Mechanistic insight into the catalytic hydrogenation of nonactivated aldehydes with a Hantzsch ester in the presence of a series of organoboranes: NMR and DFT studies. RSC Adv 2019; 9:10201-10210. [PMID: 35520935 PMCID: PMC9062335 DOI: 10.1039/c9ra01468c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 03/25/2019] [Indexed: 01/18/2023] Open
Abstract
Mechanistic studies on the organoborane-catalyzed transfer hydrogenation of nonactivated aldehydes with a Hantzsch ester as a synthetic NADPH analogue were performed by NMR experiments and DFT calculations.
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Affiliation(s)
- Go Hamasaka
- Institute for Molecular Science (IMS)
- Okazaki 444-8787
- Japan
- SOKENDAI (The Graduate University for Advanced Studies)
- Okazaki 444-8787
| | - Hiroaki Tsuji
- Institute for Molecular Science (IMS)
- Okazaki 444-8787
- Japan
- SOKENDAI (The Graduate University for Advanced Studies)
- Okazaki 444-8787
| | - Masahiro Ehara
- Institute for Molecular Science (IMS)
- Okazaki 444-8787
- Japan
- SOKENDAI (The Graduate University for Advanced Studies)
- Okazaki 444-8787
| | - Yasuhiro Uozumi
- Institute for Molecular Science (IMS)
- Okazaki 444-8787
- Japan
- SOKENDAI (The Graduate University for Advanced Studies)
- Okazaki 444-8787
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7
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Lator A, Gaillard S, Poater A, Renaud JL. Iron-Catalyzed Chemoselective Reduction of α,β-Unsaturated Ketones. Chemistry 2018; 24:5770-5774. [DOI: 10.1002/chem.201800995] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Alexis Lator
- Normandie Univ., LCMT, ENSICAEN, UNICAEN; CNRS; 6 boulevard du Maréchal Juin 14050 Caen France
| | - Sylvain Gaillard
- Normandie Univ., LCMT, ENSICAEN, UNICAEN; CNRS; 6 boulevard du Maréchal Juin 14050 Caen France
| | - Albert Poater
- Departament de Química; Institut de Química Computacional i Catàlisi (IQCC); Universitat de Girona; Campus de Montilivi 17003 Girona, Catalonia Spain
| | - Jean-Luc Renaud
- Normandie Univ., LCMT, ENSICAEN, UNICAEN; CNRS; 6 boulevard du Maréchal Juin 14050 Caen France
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8
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Berthonneau C, Nun P, Rivière M, Pauvert M, Dénès F, Lebreton J. Hemisynthesis of 2,3,4-13C3-1,4-Androstadien-3,17-dione: A Key Precursor for the Synthesis of 13C3-Androstanes and 13C3-Estranes. J Org Chem 2018; 83:3727-3737. [DOI: 10.1021/acs.joc.7b03216] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Clément Berthonneau
- Université de Nantes, Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230, 2, rue de la Houssinière BP 92208, Nantes Cedex 3 44322, France
- Atlanchim Pharma, 3, Rue Aronnax, Saint Herblain 44800, France
| | - Pierrick Nun
- Université de Nantes, Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230, 2, rue de la Houssinière BP 92208, Nantes Cedex 3 44322, France
| | - Matthieu Rivière
- Université de Nantes, Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230, 2, rue de la Houssinière BP 92208, Nantes Cedex 3 44322, France
| | - Mickael Pauvert
- Atlanchim Pharma, 3, Rue Aronnax, Saint Herblain 44800, France
| | - Fabrice Dénès
- Université de Nantes, Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230, 2, rue de la Houssinière BP 92208, Nantes Cedex 3 44322, France
| | - Jacques Lebreton
- Université de Nantes, Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230, 2, rue de la Houssinière BP 92208, Nantes Cedex 3 44322, France
- Atlanchim Pharma, 3, Rue Aronnax, Saint Herblain 44800, France
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9
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Kallubai M, Reddy SP, Dubey S, Ramachary DB, Subramanyam R. Spectroscopic evaluation of synthesized 5β-dihydrocortisol and 5β-dihydrocortisol acetate binding mechanism with human serum albumin and their role in anticancer activity. J Biomol Struct Dyn 2018; 37:623-640. [PMID: 29375009 DOI: 10.1080/07391102.2018.1433554] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Our study focus on the biological importance of synthesized 5β-dihydrocortisol (Dhc) and 5β-dihydrocortisol acetate (DhcA) molecules, the cytotoxic study was performed on breast cancer cell line (MCF-7) normal human embryonic kidney cell line (HEK293), the IC50 values for MCF-7 cells were 28 and 25 μM, respectively, whereas no toxicity in terms of cell viability was observed with HEK293 cell line. Further experiment proved that Dhc and DhcA induced 35.6 and 37.7% early apoptotic cells and 2.5, 2.9% late apoptotic cells, respectively, morphological observation of cell death through TUNEL assay revealed that Dhc and DhcA induced apoptosis in MCF-7 cells. The complexes of HSA-Dhc and HSA-DhcA were observed as static quenching, and the binding constants (K) was 4.7 ± .03 × 104 M-1 and 3.9 ± .05 × 104 M-1, and their binding free energies were found to be -6.4 and -6.16 kcal/mol, respectively. The displacement studies confirmed that lidocaine 1.4 ± .05 × 104 M-1 replaced Dhc, and phenylbutazone 1.5 ± .05 × 104 M-1 replaced by DhcA, which explains domain I and domain II are the binding sites for Dhc and DhcA. Further, FT-IR, synchronous spectroscopy, and CD results revealed that the secondary structure of HSA was altered in the presence of Dhc and DhcA. Furthermore, the atomic force microscopy and transmission electron microscopy showed that the dimensions like height and molecular size of the HSA-Dhc and HSA-DhcA complex were larger compared to HSA alone. Detailed analysis through molecular dynamics simulations also supported greater stability of HSA-Dhc and HSA-DhcA complexes, and root-mean-square-fluctuation interpreted the binding site of Dhc as domain IB and domain IIA for DhcA. This information is valuable for further development of steroid derivative with improved pharmacological significance as novel anti-cancer drugs.
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Affiliation(s)
- Monika Kallubai
- a Department of Plant Sciences, School of Life Sciences , University of Hyderabad , Hyderabad 500046 , India
| | - Srinivasa P Reddy
- b Catalysis Laboratory, School of Chemistry , University of Hyderabad , Hyderabad 500046 , India
| | - Shreya Dubey
- a Department of Plant Sciences, School of Life Sciences , University of Hyderabad , Hyderabad 500046 , India
| | - Dhevalapally B Ramachary
- b Catalysis Laboratory, School of Chemistry , University of Hyderabad , Hyderabad 500046 , India
| | - Rajagopal Subramanyam
- a Department of Plant Sciences, School of Life Sciences , University of Hyderabad , Hyderabad 500046 , India
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10
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Nerusu A, Reddy PS, Ramachary DB, Subramanyam R. Unraveling the Stability of Plasma Proteins upon Interaction of Synthesized Androstenedione and Its Derivatives-A Biophysical and Computational Approach. ACS OMEGA 2017; 2:6514-6524. [PMID: 30023521 PMCID: PMC6045264 DOI: 10.1021/acsomega.7b00577] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 09/20/2017] [Indexed: 06/08/2023]
Abstract
4-Androstene-3-17-dione (4A), also known as androstenedione, is the key intermediate of steroid metabolism. 5β-Androstane-3-17-dione (5A) and (+)-6-methyl-5β-androstane-3-17-dione (6M) are the steroid derivatives of androstenedione. The interactions of androstenedione and its derivatives with plasma proteins are important in understanding the distribution and bioavailability of these molecules. In our present study, we have studied the binding affinity of androstenedione and its derivatives with plasma proteins such as human serum albumin (HSA) and α1-acid glycoprotein (AGP). Our results showed that the 4A, 5A, and 6M steroid molecules can form stable complexes with HSA and AGP. The affinity of the studied steroid molecules with HSA is high compared to that with AGP, and the binding constants obtained for 4A, 5A, and 6M with HSA are 5.3 ± 2 × 104, 5.3 ± 1 × 104, and 9.5 ± 0.2 × 104 M-1, respectively. Further, binding sites of these steroid molecules in HSA are identified using molecular displacement and docking studies: it is found that 4A and 5A bind to domain III while 6M binds to domain II of HSA. Furthermore, the circular dichroism data revealed that there is a partial unfolding of the protein while interacting with androstenedione and its derivatives. Also, molecular dynamics simulations were carried out for HSA-androstenedione and its derivative complexes to understand their stability; hence, these results yielded that HSA-androstenedione and its derivative complexes were stabilized after 15 ns and maintained their stable structures.
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Affiliation(s)
- Aparna Nerusu
- Department
of Plant Science, School of Life Sciences,
University of Hyderabad, Gachibowli, Hyderabad, Telangana 500046, India
| | - P. Srinivasa Reddy
- Catalysis
Laboratory, School of Chemistry, University
of Hyderabad, Gachibowli, Hyderabad, Telangana 500046, India
| | - Dhevalapally B. Ramachary
- Catalysis
Laboratory, School of Chemistry, University
of Hyderabad, Gachibowli, Hyderabad, Telangana 500046, India
| | - Rajagopal Subramanyam
- Department
of Plant Science, School of Life Sciences,
University of Hyderabad, Gachibowli, Hyderabad, Telangana 500046, India
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11
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Faísca Phillips AM, Pombeiro AJL. Recent advances in organocatalytic enantioselective transfer hydrogenation. Org Biomol Chem 2017; 15:2307-2340. [DOI: 10.1039/c7ob00113d] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Robust, environmentally friendly reductants enable highly enantioselective reactions in the presence of chiral catalysts.
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Affiliation(s)
- Ana Maria Faísca Phillips
- Centro de Química Estrutural
- Complexo I
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural
- Complexo I
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
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12
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13
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Affiliation(s)
- Dong Wang
- ISM, Université de Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Didier Astruc
- ISM, Université de Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
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14
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Zheng Y, Mao J, Chen J, Rong G, Liu D, Yan H, Chi Y, Xu X. Unexpected CN bond formation via NaI-catalyzed oxidative de-tetra-hydrogenative cross-couplings between N,N-dimethyl aniline and sulfamides. RSC Adv 2015. [DOI: 10.1039/c5ra06773a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
A direct de-tetra-hydrogenative cross-coupling reaction between Csp3–H bonds and sulfamide under transition-metal-free conditions is reported to give the corresponding amidines.
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Affiliation(s)
- Yang Zheng
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Jincheng Mao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Jie Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Guangwei Rong
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Defu Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Hong Yan
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Yongjian Chi
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Xinfang Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
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15
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Michelet B, Bour C, Gandon V. Gallium-assisted transfer hydrogenation of alkenes. Chemistry 2014; 20:14488-92. [PMID: 25213294 DOI: 10.1002/chem.201404139] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Indexed: 11/08/2022]
Abstract
We report a rare case of alkene transfer hydrogenation using a main-group compound instead of a transition-metal complex as catalyst. We disclosed that 1,4-cyclohexadiene can be used as H2 surrogate towards olefin reduction in the presence of [IPrGaCl2 ][SbF6 ]. Hydrogenative cyclizations have also been carried out because this cationic gallium complex is also a potent hydroarylation catalyst.
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Affiliation(s)
- Bastien Michelet
- Université Paris-Sud, ICMMO (UMR CNRS 8182), LabEx CHARMAAAT, 91405 Orsay cedex (France), Fax: (+ 33)169154747, Homepage: www.polycata.u-psud.fr
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