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Csatayová K, Davies SG, Figuccia AL, Fletcher AM, Ford JG, Lee JA, Roberts PM, Saward BG, Song H, Thomson JE. Asymmetric syntheses of polysubstituted homoprolines and homoprolinols. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.10.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Cinar ME, Schmittel M. One-Pot Domino Aldol Reaction of Indium Enolates Affording 6-Deoxy-α-D,L-altropyranose Derivatives: Synthesis, Mechanism, and Computational Results. J Org Chem 2015; 80:8175-82. [PMID: 26258596 DOI: 10.1021/acs.joc.5b01256] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The domino-aldol-aldol-hemiacetal-reaction cascade of indium and other group 13 metal enolates furnished 6-deoxy-α-D,L-altropyranose derivatives in up to 99% yield under thermodynamic control. At lower temperature and thus under kinetic control, the reaction proceeded in a much less diastereoselective manner. The changeover from kinetic to thermodynamic control operating in this multistep domino-aldol-aldol-hemiacetal protocol was used for probing the efficiency of DFT computations. Calculations at the B3LYP/6-31G(d)/LANL2DZ level provided a mechanistic picture in full agreement with the experimental outcome.
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Affiliation(s)
- M Emin Cinar
- Department Chemie-Biologie, Universität Siegen, Adolf-Reichwein-Strasse 2, D-57068 Siegen, Germany
| | - Michael Schmittel
- Department Chemie-Biologie, Universität Siegen, Adolf-Reichwein-Strasse 2, D-57068 Siegen, Germany
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Soler A, Garrabou X, Hernández K, Gutiérrez ML, Busto E, Bujons J, Parella T, Joglar J, Clapés P. Sequential Biocatalytic Aldol Reactions in Multistep Asymmetric Synthesis: Pipecolic Acid, Piperidine and Pyrrolidine (Homo)Iminocyclitol Derivatives from Achiral Building Blocks. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400453] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Davies SG, Figuccia AL, Fletcher AM, Roberts PM, Thomson JE. Asymmetric syntheses of 2,5-dideoxy-2,5-imino-d-glucitol [(+)-DGDP] and 1,2,5-trideoxy-1-amino-2,5-imino-d-glucitol [(+)-ADGDP]. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.03.100] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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A compendium of cyclic sugar amino acids and their carbocyclic and heterocyclic nitrogen analogues. Amino Acids 2013; 45:613-89. [DOI: 10.1007/s00726-013-1521-1] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 05/21/2013] [Indexed: 12/19/2022]
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Ayers BJ, Ngo N, Jenkinson SF, Martínez RF, Shimada Y, Adachi I, Weymouth-Wilson AC, Kato A, Fleet GWJ. Glycosidase Inhibition by All 10 Stereoisomeric 2,5-Dideoxy-2,5-iminohexitols Prepared from the Enantiomers of Glucuronolactone. J Org Chem 2012; 77:7777-92. [DOI: 10.1021/jo301243s] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Benjamin J. Ayers
- Chemistry
Research Laboratory,
Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Nigel Ngo
- Chemistry
Research Laboratory,
Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Sarah F. Jenkinson
- Chemistry
Research Laboratory,
Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
- Oxford Glycobiology Institute, University of Oxford, South Parks Road, Oxford OX1
3QU, U.K
| | - R. Fernando Martínez
- Chemistry
Research Laboratory,
Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Yousuke Shimada
- Department of Hospital
Pharmacy, University of Toyama, 2630 Sugitani,
Toyama 930-0194,
Japan
| | - Isao Adachi
- Department of Hospital
Pharmacy, University of Toyama, 2630 Sugitani,
Toyama 930-0194,
Japan
| | | | - Atsushi Kato
- Department of Hospital
Pharmacy, University of Toyama, 2630 Sugitani,
Toyama 930-0194,
Japan
| | - George W. J. Fleet
- Chemistry
Research Laboratory,
Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
- Oxford Glycobiology Institute, University of Oxford, South Parks Road, Oxford OX1
3QU, U.K
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