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Tavares NCT, Cacho VRG, Costa DCS, Nunes SCC, Pais AACC, Murtinho D, Silva Serra ME. Deciphering the mechanism behind efficient enantioselective ethylation with thiazolidine‐based amino alcohols. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Dora C. S. Costa
- CQC and Department of Chemistry University of Coimbra Coimbra Portugal
| | | | | | - Dina Murtinho
- CQC and Department of Chemistry University of Coimbra Coimbra Portugal
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Tavares NC, Neves CT, Milne BF, Murtinho D, Pais AA, Serra MES. Chiral thiazolidines in the enantioselective ethylation of aldehydes: An experimental and computational study. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.09.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Zhou X, Wang P, Zhang L, Chen P, Ma M, Song N, Ren S, Li M. Transition-Metal-Free Synthesis of C-Glycosylated Phenanthridines via K 2S 2O 8-Mediated Oxidative Radical Decarboxylation of Uronic Acids. J Org Chem 2018; 83:588-603. [PMID: 29261315 DOI: 10.1021/acs.joc.7b02346] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We have developed an efficient protocol for the synthesis of C-glycosylated phenanthridines. Tetrafuranos-4-yl and pentapyranos-5-yl radicals, generated from K2S2O8-mediated oxidative decarboxylation of furan- and pyranuronic acids, undergo attack to 2-isocyanodiphenyls and ensuing homolytic aromatic substitution to provide diverse C-glycosylated phenanthridines in satisfactory yields without resort to transition metals. This reaction tolerates various functional groups, and enables ready synthesis of complex oligosaccharide-based phenanthridines. The C-glycosylated phenanthridine derived from β-cyclodextrin has been prepared, which might be potential in medicinal and biological chemistry due to its flexible conformation.
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Affiliation(s)
- Xin Zhou
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, People's Republic of China
| | - Peng Wang
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, People's Republic of China
| | - Li Zhang
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, People's Republic of China
| | - Pengwei Chen
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, People's Republic of China
| | - Mingxu Ma
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, People's Republic of China
| | - Ni Song
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, People's Republic of China
| | - Sumei Ren
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, People's Republic of China
| | - Ming Li
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, People's Republic of China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology , Qingdao 266237, People's Republic of China
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Chiral 2-(2-hydroxyaryl)alcohols (HAROLs) with a 1,4-diol scaffold as a new family of ligands and organocatalysts. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.11.054] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Rocheleau S, Pottel J, Huskić I, Moitessier N. Highly Regioselective Monoacylation of Unprotected Glucopyranoside Using Transient Directing-Protecting Groups. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601457] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Sylvain Rocheleau
- Department of Chemistry; McGill University; 801, Sherbrooke St·W. H3A 0B8 Montreal Canada
| | - Joshua Pottel
- Department of Chemistry; McGill University; 801, Sherbrooke St·W. H3A 0B8 Montreal Canada
| | - Igor Huskić
- Department of Chemistry; McGill University; 801, Sherbrooke St·W. H3A 0B8 Montreal Canada
| | - Nicolas Moitessier
- Department of Chemistry; McGill University; 801, Sherbrooke St·W. H3A 0B8 Montreal Canada
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Łopatkiewicz G, Mlynarski J. Synthesis of l-Pyranosides by Hydroboration of Hex-5-enopyranosides Revisited. J Org Chem 2016; 81:7545-56. [PMID: 27504790 DOI: 10.1021/acs.joc.6b01243] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Extensive study of the diastereoselective synthesis of l-pyranosides utilizing hydroboration of substituted exo-glucals (5-enopyranosides) obtained from d-sugars is presented. On the basis of this study we present the empirical rules describing the reaction stereoselectivity and the correlation between the yield of the l-ido product and the size of protecting groups used. Application of these guidelines revealed that the hydroboration of methyl 2,3-O-methyl-6-deoxy-α-d-xylo-hex-5-enopyranoside resulted in exclusive formation of l-ido product with high yield. This method can be successfully applied to the synthesis of l-iduronic acid being an essential component of anticoagulant drugs with diastereoselectivity superior to previously published protocols.
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Affiliation(s)
| | - Jacek Mlynarski
- Faculty of Chemistry, Jagiellonian University , Ingardena 3, 30-060 Krakow, Poland
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Escorihuela J, Burguete MI, Ujaque G, Lledós A, Luis SV. Mechanistic implications of the enantioselective addition of alkylzinc reagents to aldehydes catalyzed by nickel complexes with α-amino amide ligands. Org Biomol Chem 2016; 14:11125-11136. [DOI: 10.1039/c6ob01878e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The enantioselective alkylation of aldehydes catalysed by nickel(ii)-complexes derived from α-amino amides was studied by means of density functional theory (DFT) and ONIOM (B3LYP:UFF) calculations.
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Affiliation(s)
- Jorge Escorihuela
- Departamento de Química Inorgánica y Orgánica
- Universitat Jaume I
- 12071 Castellón de la Plana
- Spain
| | - M. Isabel Burguete
- Departamento de Química Inorgánica y Orgánica
- Universitat Jaume I
- 12071 Castellón de la Plana
- Spain
| | - Gregori Ujaque
- Unitat de Química Física
- Departament de Química
- Edifici Cn. Universitat Autònoma de Barcelona
- Barcelona
- Spain
| | - Agustí Lledós
- Unitat de Química Física
- Departament de Química
- Edifici Cn. Universitat Autònoma de Barcelona
- Barcelona
- Spain
| | - Santiago V. Luis
- Departamento de Química Inorgánica y Orgánica
- Universitat Jaume I
- 12071 Castellón de la Plana
- Spain
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Gök Y, Gök HZ. Synthesis, characterization and spectral properties of novel zinc phthalocyanines derived from C2 symmetric diol. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.03.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Gök Y, Kekeç L. Enantioselective addition of diethylzinc to aromatic aldehydes catalyzed by C2-symmetric chiral diols. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.058] [Citation(s) in RCA: 14] [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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Rachwalski M. Limonene oxide derived aziridinyl alcohols as highly efficient catalysts for asymmetric additions of organozinc species to aldehydes. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2013.11.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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