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Wang H, Wan N, Miao R, He C, Chen Y, Liu Z, Zheng Y. Identification and Structure Analysis of an Unusual Halohydrin Dehalogenase for Highly Chemo‐, Regio‐ and Enantioselective Bio‐Nitration of Epoxides. Angew Chem Int Ed Engl 2022; 61:e202205790. [DOI: 10.1002/anie.202205790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Hui‐Hui Wang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province College of Biotechnology and Bioengineering Zhejiang University of Technology Hangzhou 310014 China
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province Generic Drug Research Center of Guizhou Province Green Pharmaceuticals Engineering Research Center of Guizhou Province School of Pharmacy Zunyi Medical University Zunyi China
| | - Nan‐Wei Wan
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province Generic Drug Research Center of Guizhou Province Green Pharmaceuticals Engineering Research Center of Guizhou Province School of Pharmacy Zunyi Medical University Zunyi China
| | - Run‐Ping Miao
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province Generic Drug Research Center of Guizhou Province Green Pharmaceuticals Engineering Research Center of Guizhou Province School of Pharmacy Zunyi Medical University Zunyi China
| | - Cheng‐Li He
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province Generic Drug Research Center of Guizhou Province Green Pharmaceuticals Engineering Research Center of Guizhou Province School of Pharmacy Zunyi Medical University Zunyi China
| | - Yong‐Zheng Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province Generic Drug Research Center of Guizhou Province Green Pharmaceuticals Engineering Research Center of Guizhou Province School of Pharmacy Zunyi Medical University Zunyi China
| | - Zhi‐Qiang Liu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province College of Biotechnology and Bioengineering Zhejiang University of Technology Hangzhou 310014 China
| | - Yu‐Guo Zheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province College of Biotechnology and Bioengineering Zhejiang University of Technology Hangzhou 310014 China
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2
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Wang HH, Wan NW, Miao RP, He CL, Chen YZ, Liu ZQ, Zheng YG. Identification and Structure Analysis of an Unusual Halohydrin Dehalogenase for Highly Chemo‐, Regio‐ and Enantioselective Bio‐Nitration of Epoxides. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hui-Hui Wang
- Zunyi Medical University School of Pharmacy CHINA
| | - Nan-Wei Wan
- Zunyi Medical University School of Pharmacy CHINA
| | | | - Cheng-Li He
- Zunyi Medical University School of Pharmacy CHINA
| | | | - Zhi-Qiang Liu
- Zhejiang University of Technology College of Biotechnology and Bioengineering Chaowang Rd. 18# 3100114 Hangzhou CHINA
| | - Yu-Guo Zheng
- Zhejiang University of Technology College of Biotechnology and Bioengineering CHINA
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3
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Nováková G, Drabina P, Brůčková L, Báčová J, Handl J, Svoboda J, Vrbický M, Roušar T, Sedlák M. Enantioselective Synthesis of Clavaminol A, Xestoaminol C and their Stereoisomers Exhibiting Cytotoxic Activity. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000353] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Gabriela Nováková
- Institute of Organic Chemistry and Technology Faculty of Chemical Technology University of Pardubice Studentská 573 532 10 Pardubice Czech Republic
| | - Pavel Drabina
- Institute of Organic Chemistry and Technology Faculty of Chemical Technology University of Pardubice Studentská 573 532 10 Pardubice Czech Republic
| | - Lenka Brůčková
- Department of Biological and Biochemical Sciences Faculty of Chemical Technology University of Pardubice Studentská 573 532 10 Pardubice Czech Republic
| | - Jana Báčová
- Department of Biological and Biochemical Sciences Faculty of Chemical Technology University of Pardubice Studentská 573 532 10 Pardubice Czech Republic
| | - Jiří Handl
- Department of Biological and Biochemical Sciences Faculty of Chemical Technology University of Pardubice Studentská 573 532 10 Pardubice Czech Republic
| | - Jan Svoboda
- Institute of Organic Chemistry and Technology Faculty of Chemical Technology University of Pardubice Studentská 573 532 10 Pardubice Czech Republic
| | - Martin Vrbický
- Institute of Organic Chemistry and Technology Faculty of Chemical Technology University of Pardubice Studentská 573 532 10 Pardubice Czech Republic
| | - Tomáš Roušar
- Department of Biological and Biochemical Sciences Faculty of Chemical Technology University of Pardubice Studentská 573 532 10 Pardubice Czech Republic
| | - Miloš Sedlák
- Institute of Organic Chemistry and Technology Faculty of Chemical Technology University of Pardubice Studentská 573 532 10 Pardubice Czech Republic
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4
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Rao DHS, Padhi SK. Production of (S)-β-Nitro Alcohols by Enantioselective C-C Bond Cleavage with an R-Selective Hydroxynitrile Lyase. Chembiochem 2019; 20:371-378. [PMID: 30411458 DOI: 10.1002/cbic.201800416] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 11/08/2018] [Indexed: 11/07/2022]
Abstract
Hydroxynitrile lyase (HNL)-catalysed stereoselective synthesis of β-nitro alcohols from aldehydes and nitroalkanes is considered an efficient biocatalytic approach. However, only one S-selective HNL-Hevea brasiliensis (HbHNL)-exists that is appropriate for the synthesis of (S)-β-nitro alcohols from the corresponding aldehydes. Further, synthesis catalysed by HbHNL is limited by low specific activity and moderate yields. We have prepared a number of (S)-β-nitro alcohols, by kinetic resolution with the aid of an R-selective HNL from Arabidopsis thaliana (AtHNL). Optimization of the reaction conditions for AtHNL-catalysed stereoselective C-C bond cleavage of racemic 2-nitro-1-phenylethanol (NPE) produced (S)-NPE (together with benzaldehyde and nitromethane, largely from the R enantiomer) in up to 99 % ee and with 47 % conversion. This is the fastest HNL-catalysed route known so far for the synthesis of a series of (S)-β-nitro alcohols. This approach widens the application of AtHNL for the synthesis not only of (R)- but also of (S)-β-nitro alcohols from the appropriate substrates. Without the need for the discovery of a new enzyme, but rather by use of a retro-Henry approach, it was used to generate a number of (S)-β-nitro alcohols by taking advantage of the substrate selectivity of AtHNL.
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Affiliation(s)
- D H Sreenivasa Rao
- Biocatalysis and Enzyme Engineering Laboratory, Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500 046, India
| | - Santosh Kumar Padhi
- Biocatalysis and Enzyme Engineering Laboratory, Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500 046, India
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5
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Rossi S, Porta R, Brenna D, Puglisi A, Benaglia M. Stereoselective Catalytic Synthesis of Active Pharmaceutical Ingredients in Homemade 3D-Printed Mesoreactors. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612192] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Sergio Rossi
- Dipartimento di Chimica; Università degli Studi di Milano; Via C. Golgi, 19 20133 Milano Italy
| | - Riccardo Porta
- Dipartimento di Chimica; Università degli Studi di Milano; Via C. Golgi, 19 20133 Milano Italy
| | - Davide Brenna
- Dipartimento di Chimica; Università degli Studi di Milano; Via C. Golgi, 19 20133 Milano Italy
| | - Alessandra Puglisi
- Dipartimento di Chimica; Università degli Studi di Milano; Via C. Golgi, 19 20133 Milano Italy
| | - Maurizio Benaglia
- Dipartimento di Chimica; Università degli Studi di Milano; Via C. Golgi, 19 20133 Milano Italy
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Rossi S, Porta R, Brenna D, Puglisi A, Benaglia M. Stereoselective Catalytic Synthesis of Active Pharmaceutical Ingredients in Homemade 3D-Printed Mesoreactors. Angew Chem Int Ed Engl 2017; 56:4290-4294. [PMID: 28345159 DOI: 10.1002/anie.201612192] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 02/20/2017] [Indexed: 12/13/2022]
Abstract
3D-printed flow reactors were designed, fabricated from different materials (PLA, HIPS, nylon), and used for a catalytic stereoselective Henry reaction. The use of readily prepared and tunable 3D-printed reactors enabled the rapid screening of devices with different sizes, shapes, and channel dimensions, aimed at the identification of the best-performing reactor setup. The optimized process afforded the products in high yields, moderate diastereoselectivity, and up to 90 % ee. The method was applied to the continuous-flow synthesis of biologically active chiral 1,2-amino alcohols (norephedrine, metaraminol, and methoxamine) through a two-step sequence combining the nitroaldol reaction with a hydrogenation. To highlight potential industrial applications of this method, a multistep continuous synthesis of norephedrine has been realized. The product was isolated without any intermediate purifications or solvent switches.
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Affiliation(s)
- Sergio Rossi
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, 20133, Milano, Italy
| | - Riccardo Porta
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, 20133, Milano, Italy
| | - Davide Brenna
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, 20133, Milano, Italy
| | - Alessandra Puglisi
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, 20133, Milano, Italy
| | - Maurizio Benaglia
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, 20133, Milano, Italy
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Kaldun J, Prause F, Scharnagel D, Freitag F, Breuning M. Evaluation of 5-cis-Substituted Prolinamines as Ligands in Enantioselective, Copper-Catalyzed Henry Reactions. ChemCatChem 2016. [DOI: 10.1002/cctc.201600240] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Johannes Kaldun
- Organic Chemistry Laboratory; University of Bayreuth; Universitätsstraße 30 95447 Bayreuth Germany
| | - Felix Prause
- Organic Chemistry Laboratory; University of Bayreuth; Universitätsstraße 30 95447 Bayreuth Germany
| | - Dagmar Scharnagel
- Organic Chemistry Laboratory; University of Bayreuth; Universitätsstraße 30 95447 Bayreuth Germany
| | - Frederik Freitag
- Organic Chemistry Laboratory; University of Bayreuth; Universitätsstraße 30 95447 Bayreuth Germany
| | - Matthias Breuning
- Organic Chemistry Laboratory; University of Bayreuth; Universitätsstraße 30 95447 Bayreuth Germany
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8
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Uraguchi D, Yamada K, Ooi T. HighlyE-Selective and Enantioselective Michael Addition to Electron-Deficient Internal Alkynes Under Chiral Iminophosphorane Catalysis. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503928] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Uraguchi D, Yamada K, Ooi T. Highly
E
‐Selective and Enantioselective Michael Addition to Electron‐Deficient Internal Alkynes Under Chiral Iminophosphorane Catalysis. Angew Chem Int Ed Engl 2015; 54:9954-7. [DOI: 10.1002/anie.201503928] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Indexed: 11/12/2022]
Affiliation(s)
- Daisuke Uraguchi
- Institute of Transformative Bio‐Molecules (WPI‐ITbM) and Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464‐8603 (Japan)
| | - Kohei Yamada
- Institute of Transformative Bio‐Molecules (WPI‐ITbM) and Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464‐8603 (Japan)
| | - Takashi Ooi
- Institute of Transformative Bio‐Molecules (WPI‐ITbM) and Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464‐8603 (Japan)
- CREST, Japan Science and Technology Agency (JST), Nagoya University, Nagoya 464‐8603 (Japan)
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10
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Qin D, Yu W, Zhou J, Zhang Y, Ruan Y, Zhou Z, Chen H. syn
‐ and Enantioselective Henry Reactions of Aliphatic Aldehydes and Application to the Synthesis of Safingol. Chemistry 2013; 19:16541-4. [DOI: 10.1002/chem.201303650] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Dan‐Dan Qin
- Department of Chemistry and State Key Laboratory of Physical Chemistry for Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005 (P. R. China), Fax: (+86) 592‐2185192
| | - Wen Yu
- Department of Chemistry and State Key Laboratory of Physical Chemistry for Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005 (P. R. China), Fax: (+86) 592‐2185192
| | - Jie‐Dan Zhou
- Department of Chemistry and State Key Laboratory of Physical Chemistry for Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005 (P. R. China), Fax: (+86) 592‐2185192
| | - Yan‐Cheng Zhang
- Nantong Huafeng Chemical Co. Ltd., Nantong, Jiangsu, 226531 (P. R. China)
| | - Yuan‐Ping Ruan
- Department of Chemistry and State Key Laboratory of Physical Chemistry for Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005 (P. R. China), Fax: (+86) 592‐2185192
| | - Zhao‐Hui Zhou
- Department of Chemistry and State Key Laboratory of Physical Chemistry for Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005 (P. R. China), Fax: (+86) 592‐2185192
| | - Hong‐Bin Chen
- Department of Chemistry and State Key Laboratory of Physical Chemistry for Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005 (P. R. China), Fax: (+86) 592‐2185192
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11
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Scheffler U, Mahrwald R. Recent Advances in Organocatalytic Methods for Asymmetric CC Bond Formation. Chemistry 2013; 19:14346-96. [DOI: 10.1002/chem.201301996] [Citation(s) in RCA: 178] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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12
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Zhou Y, Zhu Y, Yan S, Gong Y. Copper-Catalyzed Enantioselective Henry Reaction of Enals and Subsequent Iodocyclization: Stereoselective Construction of Chiral Azatricyclic Frameworks. Angew Chem Int Ed Engl 2013; 52:10265-9. [DOI: 10.1002/anie.201305148] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Indexed: 11/08/2022]
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13
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Zhou Y, Zhu Y, Yan S, Gong Y. Copper-Catalyzed Enantioselective Henry Reaction of Enals and Subsequent Iodocyclization: Stereoselective Construction of Chiral Azatricyclic Frameworks. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201305148] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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14
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Synthesis of C 1-symmetric primary-secondary diamines and their application in the enantioselective Henry reaction. Front Chem Sci Eng 2013. [DOI: 10.1007/s11705-013-1343-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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15
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Ogawa T, Kumagai N, Shibasaki M. Self-Assembling Neodymium/Sodium Heterobimetallic Asymmetric Catalyst Confined in a Carbon Nanotube Network. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302236] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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16
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Ogawa T, Kumagai N, Shibasaki M. Self-assembling neodymium/sodium heterobimetallic asymmetric catalyst confined in a carbon nanotube network. Angew Chem Int Ed Engl 2013; 52:6196-201. [PMID: 23640848 DOI: 10.1002/anie.201302236] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2013] [Indexed: 12/12/2022]
Affiliation(s)
- Takanori Ogawa
- Institute of Microbial Chemistry (BIKAKEN), Tokyo, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
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Trost BM, Bartlett MJ, Weiss AH, von Wangelin AJ, Chan VS. Development of Zn-ProPhenol-catalyzed asymmetric alkyne addition: synthesis of chiral propargylic alcohols. Chemistry 2012; 18:16498-509. [PMID: 23097281 PMCID: PMC3864595 DOI: 10.1002/chem.201202085] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Revised: 08/29/2012] [Indexed: 11/07/2022]
Abstract
The development of a general and practical zinc-catalyzed enantioselective alkyne addition methodology is reported. The commercially available ProPhenol ligand (1) has facilitated the addition of a wide range of zinc alkynylides to aryl, aliphatic, and α,β-unsaturated aldehydes in high yield and enantioselectivity. New insights into the mechanism of this reaction have resulted in a significant reduction in reagent stoichiometry, enabling the use of precious alkynes and avoiding the use of excess dimethylzinc. The enantioenriched propargylic alcohols from this reaction serve as versatile synthetic intermediates and have enabled efficient syntheses of several complex natural products.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, Stanford, CA 94305-5080, USA.
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18
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Kumagai N, Shibasaki M. Asymmetrische Katalyse mit Bis(hydroxyphenyl)diamid/Seltenerdmetall-Komplexen. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206582] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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19
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Asymmetric Catalysis with Bis(hydroxyphenyl)diamides/Rare-Earth Metal Complexes. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/anie.201206582] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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20
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Xu K, Lai G, Zha Z, Pan S, Chen H, Wang Z. A Highlyanti-Selective Asymmetric Henry Reaction Catalyzed by a Chiral Copper Complex: Applications to the Syntheses of (+)-Spisulosine and a Pyrroloisoquinoline Derivative. Chemistry 2012; 18:12357-62. [DOI: 10.1002/chem.201201775] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Indexed: 12/13/2022]
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21
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Qin DD, Lai WH, Hu D, Chen Z, Wu AA, Ruan YP, Zhou ZH, Chen HB. Highly Enantioselective Henry Reactions of Aromatic Aldehydes Catalyzed by an Amino Alcohol-Copper(II) Complex. Chemistry 2012; 18:10515-8. [DOI: 10.1002/chem.201201565] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Indexed: 11/06/2022]
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22
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Corbett MT, Uraguchi D, Ooi T, Johnson JS. Base-catalyzed direct aldolization of α-alkyl-α-hydroxy trialkyl phosphonoacetates. Angew Chem Int Ed Engl 2012; 51:4685-9. [PMID: 22474004 DOI: 10.1002/anie.201200559] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Indexed: 11/12/2022]
Affiliation(s)
- Michael T Corbett
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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Corbett MT, Uraguchi D, Ooi T, Johnson JS. Base-Catalyzed Direct Aldolization of α-Alkyl-α-Hydroxy Trialkyl Phosphonoacetates. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201200559] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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24
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Nitabaru T, Kumagai N, Shibasaki M. Catalytic Asymmetric anti-Selective Nitroaldol Reaction En Route to Zanamivir. Angew Chem Int Ed Engl 2012; 51:1644-7. [DOI: 10.1002/anie.201108153] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Indexed: 11/07/2022]
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25
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Nitabaru T, Kumagai N, Shibasaki M. Catalytic Asymmetric anti-Selective Nitroaldol Reaction En Route to Zanamivir. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201108153] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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26
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Lang K, Park J, Hong S. Urea/Transition-Metal Cooperative Catalyst for anti-Selective Asymmetric Nitroaldol Reactions. Angew Chem Int Ed Engl 2012; 51:1620-4. [DOI: 10.1002/anie.201107785] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Indexed: 11/11/2022]
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27
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Lang K, Park J, Hong S. Urea/Transition-Metal Cooperative Catalyst for anti-Selective Asymmetric Nitroaldol Reactions. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201107785] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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28
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Enders D, Nguyen TV. Chiral quaternary phosphonium salts: a new class of organocatalysts. Org Biomol Chem 2012; 10:5327-31. [DOI: 10.1039/c2ob25823d] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Xu H, Wolf C. Asymmetric synthesis of chiral 1,3-diaminopropanols: bisoxazolidine-catalyzed C-C bond formation with α-keto amides. Angew Chem Int Ed Engl 2011; 50:12249-52. [PMID: 22038682 DOI: 10.1002/anie.201105778] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2011] [Revised: 10/17/2011] [Indexed: 11/08/2022]
Affiliation(s)
- Hanhui Xu
- Department of Chemistry, Georgetown University, 37th and O Streets, Washington, DC 20057, USA
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30
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Xu H, Wolf C. Asymmetric Synthesis of Chiral 1,3-Diaminopropanols: Bisoxazolidine-Catalyzed CC Bond Formation with α-Keto Amides. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201105778] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Alemán J, Parra A, Jiang H, Jørgensen KA. Squaramides: Bridging from Molecular Recognition to Bifunctional Organocatalysis. Chemistry 2011; 17:6890-9. [DOI: 10.1002/chem.201003694] [Citation(s) in RCA: 590] [Impact Index Per Article: 45.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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32
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Kumagai N, Shibasaki M. Direkte katalytische asymmetrische Reaktionen unter Protonentransferkatalyse. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100918] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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33
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Kumagai N, Shibasaki M. Recent Advances in Direct Catalytic Asymmetric Transformations under Proton-Transfer Conditions. Angew Chem Int Ed Engl 2011; 50:4760-72. [DOI: 10.1002/anie.201100918] [Citation(s) in RCA: 156] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2011] [Indexed: 11/11/2022]
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