1
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Mohiti M, Lu Y, He H, Ni SF, Somfai P. Regio- and Enantioselective Synthesis of 1,2-Diamines by Formal Hydroamination of Enamines: Scope, Mechanism, and Asymmetric Synthesis of Orthogonally Protected Bis-Piperazines as a Privileged Scaffold. Chemistry 2024; 30:e202303078. [PMID: 38205968 DOI: 10.1002/chem.202303078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 01/09/2024] [Accepted: 01/11/2024] [Indexed: 01/12/2024]
Abstract
We have previously reported the first formal hydroamination of enamines for the synthesis of chiral 1,2-diamines. Here, we describe: (i) the discovery, optimization, and substrate expansion of this reaction; (ii) a novel and straightforward protocol for the "click-type" synthesis of enamines in quantitative yield utilizing sodium sulfate in a dual role as an ancillary and dehydrating agent without the need for workup or purification; (iii) the application of this methodology to the first enantioselective synthesis of orthogonally protected 1,1'-(1-(4-fluorophenyl)ethane-1,2-diyl) piperazines, a scaffold for rapid lead optimization in drug discovery; (iv) a computational investigation into the mechanism and rationalization of the enantioselectivities of the reaction.
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Affiliation(s)
- Maziar Mohiti
- Center for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 22100, Lund, Sweden
| | - Yu Lu
- Center for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 22100, Lund, Sweden
| | - Hui He
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong, 515063, P.R. China
| | - Shao-Fei Ni
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong, 515063, P.R. China
| | - Peter Somfai
- Center for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 22100, Lund, Sweden
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2
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Zhang MZ, Wang P, Liu HY, Wang D, Deng Y, Bai YH, Luo F, Wu WY, Chen T. Metal-Catalyst-Free One-Pot Aqueous Synthesis of trans-1,2-Diols from Electron-Deficient α,β-Unsaturated Amides via Epoxidation Using Oxone as a Dual Role Reagent. CHEMSUSCHEM 2023; 16:e202300583. [PMID: 37311715 DOI: 10.1002/cssc.202300583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/05/2023] [Accepted: 06/13/2023] [Indexed: 06/15/2023]
Abstract
In organic synthesis, incorporating two functional groups into the carbon-carbon double bond of α,β-unsaturated amides is challenging due to the electron-deficient nature of the olefin moiety. Although a few examples of dihydroxylation of α,β-unsaturated amides have been demonstrated, producing cis-1,2-diols using either highly toxic OsO4 or other specialized metal reagents in organic solvents, they are limited to several specific amides. We describe herein a general and one-pot direct synthesis of trans-1,2-diols from electron-deficient α,β-unsaturated amides through dihydroxylation using oxone as a dual-role reagent in water. This reaction does not require any metal catalyst and produces non-hazardous and nontoxic K2 SO4 as the sole byproduct. Moreover, epoxidation products could also be selectively formed by adjusting the reaction conditions. By the strategy, the intermediates of Mcl-1 inhibitor and antiallergic bioactive molecule can be synthesized in one pot. The gram-scale synthesis of trans-1,2-diol which is isolated and purified by recrystallization further shows the potential applications of this new reaction in organic synthesis.
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Affiliation(s)
- Ming-Zhong Zhang
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Ping Wang
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Hai-Yan Liu
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Dailian Wang
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan, 756000, China
| | - Ya Deng
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Yu-Heng Bai
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Fei Luo
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Wen-Yu Wu
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Tieqiao Chen
- College of Chemical Engineering and Technology, Hainan University, Haikou, 410082, China
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3
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Sahoo J, Panda J, Giri S, Sahoo G. Concept-Driven Chemoselective O/N-Derivatization of Prolinol: A Bee-Line Approach to Access Organocatalysts. J Org Chem 2023. [PMID: 37402179 DOI: 10.1021/acs.joc.3c00992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2023]
Abstract
An investigation into the sensitivity of reaction conditions to a highly utilized protocol has been reported, wherein the mono-Boc functionalization of prolinol could be controlled for the exclusive synthesis of either N-Boc, O-Boc, or oxazolidinone derivatives. Mechanistic investigation revealed that the elementary steps could possibly be controlled by (a) a requisite base to recognize the differently acidic sites (NH and OH) for the formation of the conjugate base, which reacts with the electrophile, and (b) the difference in nucleophilicity of the conjugate basic sites. Herein, a successful chemoselective functionalization of the nucleophilic sites of prolinol by employing a suitable base is reported. This has been achieved by exploiting the relative acidity difference of NH and OH along with the reversed nucleophilicity of the corresponding conjugate bases N- and O-. This protocol has also been used for the synthesis of several O-functionalized prolinol derived organocatalysts, few of which have been newly reported.
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Affiliation(s)
- Jigyansa Sahoo
- Organocatalysis and Synthesis Laboratory, Department of Chemistry, National Institute of Technology Rourkela, Rourkela 769008, Odisha, India
| | - Jeetendra Panda
- Organocatalysis and Synthesis Laboratory, Department of Chemistry, National Institute of Technology Rourkela, Rourkela 769008, Odisha, India
| | - Santanab Giri
- School of Applied Science and Humanities, Haldia Institute of Technology, Haldia 721657, West Bengal, India
| | - Gokarneswar Sahoo
- Organocatalysis and Synthesis Laboratory, Department of Chemistry, National Institute of Technology Rourkela, Rourkela 769008, Odisha, India
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4
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Lei M, Chen X, Wang Y, Zhang L, Zhu H, Wang Z. Homogeneous and Heterogeneous Pd-Catalyzed Selective C-P Activation and Transfer Hydrogenation for "Group-Substitution" Synthesis of Trivalent Phosphines. Org Lett 2022; 24:2868-2872. [PMID: 35416672 DOI: 10.1021/acs.orglett.2c00844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A "group-substitution" synthesis of trivalent phosphines via a C-P activation of phosphonium salts is reported. The alkyl groups were introduced by alkylation of phosphines to form phosphonium salts. The "de-arylation" of phosphonium salts was achieved by C-P activation and transfer hydrogenation with homogeneous or heterogeneous Pd (0) catalysts. With this method, a series of trivalent phosphines were prepared from commercially available triarylphosphines. A chiral monophosphine ligand could be prepared from BINAP in a "de-phosphination" process.
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Affiliation(s)
- Ming Lei
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xingyu Chen
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yingjie Wang
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Liran Zhang
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China.,Xi'an Tieyi Binhe School, Xi'an 710038, China
| | - Hong Zhu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhiqian Wang
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
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5
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Leonidis G, Dalezis P, Trafalis D, Beis D, Giardoglou P, Koukiali A, Sigala I, Nikolakaki E, Sarli V. Synthesis and Biological Evaluation of a c(RGDyK) Peptide Conjugate of SRPIN803. ACS OMEGA 2021; 6:28379-28393. [PMID: 34723035 PMCID: PMC8552469 DOI: 10.1021/acsomega.1c04576] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 10/04/2021] [Indexed: 06/13/2023]
Abstract
In the present study, SRPIN803 and c(RGDyK)-SRPIN803 hybrid compounds were efficiently synthesized and evaluated for their stability in human plasma and buffers of pH 7.4 and 5.2. The hybrids were mainly cytostatic against a panel of tested cancer cells, whereas one c(RGDyK)-SRPIN803 hybrid, geo35, was the most active compound in this screen and was cytotoxic against cell lines MCF7 and MRC5 with IC50 values of 61 and 63 μM, respectively. SRPIN803 and geo35 exhibited antiangiogenic activity in zebrafish embryos, and this effect was dose-dependent. Although c(RGDyK)-SRPIN803 hybrid compounds were found less potent compared to SRPIN803, they have shown activities interesting enough to illustrate the potential of this approach for the development of a new class of antiangiogenic compounds.
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Affiliation(s)
- George Leonidis
- Department
of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - Panagiotis Dalezis
- Laboratory
of Pharmacology, Medical School National
and Kapodistrian University of Athens, 75 Mikras Asias Street, Athens 11527, Greece
| | - Dimitrios Trafalis
- Laboratory
of Pharmacology, Medical School National
and Kapodistrian University of Athens, 75 Mikras Asias Street, Athens 11527, Greece
| | - Dimitris Beis
- Zebrafish
Disease Model Lab, Biomedical Research Foundation
Academy of Athens, Athens 115 27, Greece
| | - Panagiota Giardoglou
- Zebrafish
Disease Model Lab, Biomedical Research Foundation
Academy of Athens, Athens 115 27, Greece
| | - Anastasia Koukiali
- Department
of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - Ioanna Sigala
- Department
of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - Eleni Nikolakaki
- Department
of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - Vasiliki Sarli
- Department
of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
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6
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Bhattacharya A, Shukla PM, Maji B. Highly Selective and Catalytic C-N Bond Cleavage of Tertiary Sulfonamides: Scope and Mechanistic Insight. ACS OMEGA 2021; 6:18988-19005. [PMID: 34337238 PMCID: PMC8320137 DOI: 10.1021/acsomega.1c02276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 07/06/2021] [Indexed: 06/13/2023]
Abstract
A highly chemoselective C-N bond cleavage reaction of p-methoxybenzyl- (PMB), 3,4-dimethoxybenzyl- (DMB), or cinnamyl-substituted tertiary sulfonamides in the presence of catalytic Bi(OTf)3 is presented. A wide range of sulfonamide substrates smoothly furnished the corresponding C-N bond cleavage products in good to excellent yields. Great efforts have been made to obtain insights into the reaction mechanism based on a series of control experiments and mass spectroscopy.
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7
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Tanaka N, Usuki T. Can Heteroarenes/Arenes Be Hydrogenated Over Catalytic Pd/C Under Ambient Conditions? European J Org Chem 2020. [DOI: 10.1002/ejoc.202000695] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Nao Tanaka
- Department of Materials and Life Sciences, Faculty of Science and Technology Sophia University 7‐1 Kioicho, Chiyoda‐ku 102‐8554 Tokyo Japan
| | - Toyonobu Usuki
- Department of Materials and Life Sciences, Faculty of Science and Technology Sophia University 7‐1 Kioicho, Chiyoda‐ku 102‐8554 Tokyo Japan
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8
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Yamamoto Y, Shimizu E, Ban K, Wada Y, Mizusaki T, Yoshimura M, Takagi Y, Sawama Y, Sajiki H. Facile Hydrogenative Deprotection of N-Benzyl Groups Using a Mixed Catalyst of Palladium and Niobic Acid-on-Carbon. ACS OMEGA 2020; 5:2699-2709. [PMID: 32095693 PMCID: PMC7033673 DOI: 10.1021/acsomega.9b03226] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 01/21/2020] [Indexed: 05/12/2023]
Abstract
The palladium-on-carbon (Pd/C)-catalyzed hydrogenative deprotection of the N-benzyl-protecting group was effectively facilitated by the combined use of niobic acid-on-carbon (Nb2O5/C). Nb2O5/C is an acidic heterogeneous catalyst prepared from NbCl5 and activated carbon. The catalysts were easily removed from the reaction mixture and reusable. Deprotected amines were obtained in excellent yields without an additional neutralization process. The facilitating effect of Nb2O5/C was also observed during the Pd/C-catalyzed hydrogenative deprotection of the N-benzyloxycarbonyl (Cbz) and O-benzyl groups.
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Affiliation(s)
- Yuta Yamamoto
- Laboratory
of Organic Chemistry, Gifu Pharmaceutical
University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Eisho Shimizu
- Laboratory
of Organic Chemistry, Gifu Pharmaceutical
University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Kazuho Ban
- Laboratory
of Organic Chemistry, Gifu Pharmaceutical
University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Yoshiyuki Wada
- Catalysts
Development Center, N. E. Chemcat Corporation, 25-3 Koshindaira, Bando, Ibaraki 306-0608, Japan
| | - Tomoteru Mizusaki
- Catalysts
Development Center, N. E. Chemcat Corporation, 25-3 Koshindaira, Bando, Ibaraki 306-0608, Japan
| | - Masatoshi Yoshimura
- Catalysts
Development Center, N. E. Chemcat Corporation, 678 Ipponmatsu, Numazu, Shizuoka 410-0314, Japan
| | - Yukio Takagi
- Catalysts
Development Center, N. E. Chemcat Corporation, 678 Ipponmatsu, Numazu, Shizuoka 410-0314, Japan
| | - Yoshinari Sawama
- Laboratory
of Organic Chemistry, Gifu Pharmaceutical
University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
- E-mail: (Y.S.)
| | - Hironao Sajiki
- Laboratory
of Organic Chemistry, Gifu Pharmaceutical
University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
- E-mail: . Phone/Fax: (+81)-58-230-8109 (H.S.)
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9
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Liu S, Ji F, Li X, Pan X, Chen S, Wang X, Zhang Y, Men Y. Stick-like mesoporous titania loaded Pd as highly active and cost effective catalysts for hydrodebenzylation of hexabenzylhexaazaisowurtzitane (HBIW). MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.110556] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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10
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Markus J, Ferko B, Berkeš D, Moncol J, Lawson AM, Othman M, Daïch A. Indolylglycines Backbones in the Synthesis of Enantiopure 3,3-Spiroindolenines, Indolyl Tetracyclic Hemiaminals, and 3-Indolyl-maleimides Frameworks. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jozef Markus
- Department of Organic Chemistry; Slovak University of Technology, Radlinského 9; 81237 Bratislava Slovakia
| | - Branislav Ferko
- Department of Organic Chemistry; Slovak University of Technology, Radlinského 9; 81237 Bratislava Slovakia
| | - Dušan Berkeš
- Department of Organic Chemistry; Slovak University of Technology, Radlinského 9; 81237 Bratislava Slovakia
| | - Ján Moncol
- Department of Inorganic Chemistry; Slovak University of Technology; 81237 Bratislava Slovakia
| | - Ata Martin Lawson
- UNILEHAVRE, FR 3038 CNRS, URCOM, 76600 Le Havre, France. EA 3221, INC3M CNRS-FR 3038, UFR ST, BP: 1123, 25 rue Philipe Lebon; Normandie Univ.; 76063 Le Havre Cedex France
| | - Mohamed Othman
- UNILEHAVRE, FR 3038 CNRS, URCOM, 76600 Le Havre, France. EA 3221, INC3M CNRS-FR 3038, UFR ST, BP: 1123, 25 rue Philipe Lebon; Normandie Univ.; 76063 Le Havre Cedex France
| | - Adam Daïch
- UNILEHAVRE, FR 3038 CNRS, URCOM, 76600 Le Havre, France. EA 3221, INC3M CNRS-FR 3038, UFR ST, BP: 1123, 25 rue Philipe Lebon; Normandie Univ.; 76063 Le Havre Cedex France
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11
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Wang W, Huang H. Palladium-catalyzed formal insertion of carbenoids into N,O-aminals: direct access to α-alkoxy-β-amino acid esters. Chem Commun (Camb) 2019; 55:3947-3950. [DOI: 10.1039/c9cc01374a] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new and efficient reaction has been developed to synthesize α-alkoxy-β-amino acid esters via palladium-catalyzed formal insertion of carbenoids into N,O-aminals.
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Affiliation(s)
- Wenhui Wang
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310024
- China
| | - Hanmin Huang
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310024
- China
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry
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12
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Chen C, Zuo H, Chan KS. Catalytic hydrodebromination of aryl bromides by cobalt tetra-butyl porphyrin complexes with EtOH. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.12.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Sampaio-Dias IE, Silva-Reis SC, Pinto da Silva L, García-Mera X, Maestro MA, Rodríguez-Borges JE. Mechanistic insights for the transprotection of tertiary amines with Boc2O via charged carbamates: access to both enantiomers of 2-azanorbornane-3-exo-carboxylic acids. Org Chem Front 2019. [DOI: 10.1039/c9qo00957d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Development of a synthetic methodology for the selective transprotection in hindered tertiary amines using Boc2O under N–C hydrogenolysis catalyzed by Pd/C: access to both enantiomers of 2-azanorbornane-3-exo-carboxylates.
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Affiliation(s)
- Ivo E. Sampaio-Dias
- LAQV/REQUIMTE
- Department of Chemistry and Biochemistry
- Faculty of Sciences
- University of Porto
- 4169-007 Porto
| | - Sara C. Silva-Reis
- LAQV/REQUIMTE
- Department of Chemistry and Biochemistry
- Faculty of Sciences
- University of Porto
- 4169-007 Porto
| | - Luís Pinto da Silva
- Chemistry Research Unit (CIQUP)
- Department of Chemistry and Biochemistry
- Faculty of Sciences of University of Porto
- 4169-007 Porto
- Portugal
| | - Xerardo García-Mera
- Department of Organic Chemistry
- Faculty of Pharmacy
- University of Santiago de Compostela
- Santiago de Compostela
- Spain
| | - Miguel A. Maestro
- Department of Chemistry-CICA
- Faculty of Sciences
- University of Coruña
- A Coruña
- Spain
| | - José E. Rodríguez-Borges
- LAQV/REQUIMTE
- Department of Chemistry and Biochemistry
- Faculty of Sciences
- University of Porto
- 4169-007 Porto
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14
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Albano G, Evangelisti C, Aronica LA. Hydrogenolysis of Benzyl Protected Phenols and Aniline Promoted by Supported Palladium Nanoparticles. ChemistrySelect 2017. [DOI: 10.1002/slct.201601736] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gianluigi Albano
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa; Via Giuseppe Moruzzi 13 56124 Pisa Italy
| | - Claudio Evangelisti
- Consiglio Nazionale delle Ricerche; Istituto di Scienze e Tecnologie Molecolari (CNR-ISTM); Via Gaudenzio Fantoli 16/15 20138 Milano Italy
| | - Laura Antonella Aronica
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa; Via Giuseppe Moruzzi 13 56124 Pisa Italy
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15
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Luo B, Gao JM, Lautens M. Palladium-Catalyzed Norbornene-Mediated Tandem Amination/Cyanation Reaction: A Method for the Synthesis of ortho-Aminated Benzonitriles. Org Lett 2016; 18:4166-9. [DOI: 10.1021/acs.orglett.6b02249] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Bo Luo
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Mark Lautens
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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16
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Singh G, Sharma S, Gupta V, Raj T, Singh P, Ishar MPS. Formation and reductive ring opening reactions of indolyl-isoxazolidines: access to novel natural product analogs and precursors. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.12.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Qin G, Li L, Li J, Huang H. Palladium-Catalyzed Formal Insertion of Carbenoids into Aminals via C–N Bond Activation. J Am Chem Soc 2015; 137:12490-3. [DOI: 10.1021/jacs.5b08476] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guiping Qin
- State Key Laboratory for
Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical
Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Lixin Li
- State Key Laboratory for
Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical
Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Jiawen Li
- State Key Laboratory for
Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical
Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Hanmin Huang
- State Key Laboratory for
Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical
Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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18
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Dong Z, Wang J, Dong G. Simple Amine-Directed Meta-Selective C–H Arylation via Pd/Norbornene Catalysis. J Am Chem Soc 2015; 137:5887-90. [DOI: 10.1021/jacs.5b02809] [Citation(s) in RCA: 333] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Zhe Dong
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Jianchun Wang
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Guangbin Dong
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
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19
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Egan JA, Filer CN. Tritiation and characterization of several suicide substrate enzyme inactivators. Appl Radiat Isot 2014; 94:302-305. [PMID: 25305521 DOI: 10.1016/j.apradiso.2014.08.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Accepted: 08/21/2014] [Indexed: 10/24/2022]
Abstract
Methods are presented to tritiate the enzyme inhibitors pargyline and caracemide.
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Affiliation(s)
- Judith A Egan
- PerkinElmer Life Sciences & Technology, Inc., 940 Winter Street, Waltham, MA 02451, United States
| | - Crist N Filer
- PerkinElmer Life Sciences & Technology, Inc., 940 Winter Street, Waltham, MA 02451, United States.
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20
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Cheng C, Wang B, Liu N, Chen W, Wang X, Hu Y. Controlling chemoselective transformations of 4-acylpyridines via a Pd–C catalytic hydrodechlorination–hydrogenation. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.12.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Dong Z, Dong G. Ortho vs Ipso: Site-Selective Pd and Norbornene-Catalyzed Arene C–H Amination Using Aryl Halides. J Am Chem Soc 2013; 135:18350-3. [DOI: 10.1021/ja410823e] [Citation(s) in RCA: 248] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Zhe Dong
- Department
of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Guangbin Dong
- Department
of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
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Xie Y, Sun M, Zhou H, Cao Q, Gao K, Niu C, Yang H. Enantiospecific Total Synthesis of (+)-Tanikolide via a Key [2,3]-Meisenheimer Rearrangement with an Allylic Amine N-Oxide-Directed Epoxidation and a One-Pot Trichloroisocyanuric Acid N-Debenzylation and N-Chlorination. J Org Chem 2013; 78:10251-63. [DOI: 10.1021/jo4016437] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yangla Xie
- School of Pharmaceutical
Science, Zhengzhou University, Zhengzhou 450001, China
| | - Moran Sun
- School of Pharmaceutical
Science, Zhengzhou University, Zhengzhou 450001, China
| | - Hang Zhou
- School of Pharmaceutical
Science, Zhengzhou University, Zhengzhou 450001, China
| | - Qiwei Cao
- School of Pharmaceutical
Science, Zhengzhou University, Zhengzhou 450001, China
| | - Kaige Gao
- School of Pharmaceutical
Science, Zhengzhou University, Zhengzhou 450001, China
| | - Changling Niu
- School of Pharmaceutical
Science, Zhengzhou University, Zhengzhou 450001, China
| | - Hua Yang
- School of Pharmaceutical
Science, Zhengzhou University, Zhengzhou 450001, China
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Dighe SU, Hutait S, Batra S. Copper-catalyzed multicomponent coupling/cycloisomerization reaction between substituted 1-formyl-9H-β-carbolines, secondary amines, and substituted alkynes for the synthesis of substituted 3-aminoindolizino[8,7-b]indoles. ACS COMBINATORIAL SCIENCE 2012; 14:665-72. [PMID: 23135420 DOI: 10.1021/co300123y] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A copper-catalyzed efficient one step three component strategy for preparing a library of aminoindolizino[8,7-b]indoles from N-substituted 1-formyl-9H-β-carbolines, secondary amines, and substituted alkynes with high atom economy has been developed.
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Affiliation(s)
- Shashi U. Dighe
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, P.O. Box 173,
Lucknow 226 001, UP, India
| | - Samiran Hutait
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, P.O. Box 173,
Lucknow 226 001, UP, India
| | - Sanjay Batra
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, P.O. Box 173,
Lucknow 226 001, UP, India
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Chiral amines in the diastereoselective Mannich-related multicomponent synthesis of diarylmethylamines, 1,2-diarylethylamines, and β-arylethylamines. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.10.058] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Choi JK, Jeon BS, Cho JH, Kim BM. Use of an Ionic Liquid as a Co-solvent for Recyclable Pd/C-mediated N-Debenzylation. B KOREAN CHEM SOC 2010. [DOI: 10.5012/bkcs.2010.31.03.735] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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26
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