1
|
Cavalli ES, Mies T, Rzepa HS, White AJP, Parsons PJ, Barrett AG. Pyrimidine Nucleosides Syntheses by Late-Stage Base Heterocyclization Reactions. Org Lett 2022; 24:8931-8935. [DOI: 10.1021/acs.orglett.2c03152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Elfie S. Cavalli
- Department of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London, 82 Wood Lane, London W12 0BZ, England
| | - Thomas Mies
- Department of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London, 82 Wood Lane, London W12 0BZ, England
| | - Henry S. Rzepa
- Department of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London, 82 Wood Lane, London W12 0BZ, England
| | - Andrew J. P. White
- Department of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London, 82 Wood Lane, London W12 0BZ, England
| | - Philip J. Parsons
- Department of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London, 82 Wood Lane, London W12 0BZ, England
| | - Anthony G.M. Barrett
- Department of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London, 82 Wood Lane, London W12 0BZ, England
| |
Collapse
|
2
|
Affiliation(s)
- Xinming Zhang
- CNRS, BioCIS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Laurent Evanno
- CNRS, BioCIS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Erwan Poupon
- CNRS, BioCIS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| |
Collapse
|
3
|
Buyck T, Pasche D, Wang Q, Zhu J. Synthesis of Oxazolidin-2-ones by Oxidative Coupling of Isonitriles, Phenyl Vinyl Selenone, and Water. Chemistry 2016; 22:2278-81. [PMID: 26683868 DOI: 10.1002/chem.201505050] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Indexed: 12/17/2022]
Abstract
Reaction of alkyl isocyanides, phenyl vinyl selenone, and water in the presence of a catalytic amount of Cs2 CO3 afforded oxazolidin-2-ones in good yields. This unprecedented heteroannulation process created four chemical bonds in a single operation with the isocyano group acting formally as a polarized double bond and phenyl vinyl selenone as a latent 1,3-dipole. The phenylselenonyl group played a triple role as an electron-withdrawing group to activate the 1,4-addition, a leaving group, and a latent oxidant in this transformation.
Collapse
Affiliation(s)
- Thomas Buyck
- Laboratory of Synthesis and Natural Products, école Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Delphine Pasche
- Laboratory of Synthesis and Natural Products, école Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, école Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, école Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland.
| |
Collapse
|
4
|
Boyarskiy VP, Bokach NA, Luzyanin KV, Kukushkin VY. Metal-Mediated and Metal-Catalyzed Reactions of Isocyanides. Chem Rev 2015; 115:2698-779. [DOI: 10.1021/cr500380d] [Citation(s) in RCA: 388] [Impact Index Per Article: 43.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Vadim P. Boyarskiy
- Institute of Chemistry, Saint Petersburg State University, 198504 Stary Petergof, Russian Federation
| | - Nadezhda A. Bokach
- Institute of Chemistry, Saint Petersburg State University, 198504 Stary Petergof, Russian Federation
| | - Konstantin V. Luzyanin
- Institute of Chemistry, Saint Petersburg State University, 198504 Stary Petergof, Russian Federation
| | - Vadim Yu. Kukushkin
- Institute of Chemistry, Saint Petersburg State University, 198504 Stary Petergof, Russian Federation
| |
Collapse
|
5
|
Le HV, Ganem B. Trifluoroacetic anhydride-catalyzed oxidation of isonitriles by DMSO: a rapid, convenient synthesis of isocyanates. Org Lett 2011; 13:2584-5. [PMID: 21491899 DOI: 10.1021/ol200695y] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A smooth and efficient oxidation of isonitriles to isocyanates by sulfoxides is catalyzed by trifluoroacetic anhydride. With use of DMSO as the oxidant and 5 mol·% TFAA (dichloromethane, -60 to 0 °C), the process is complete in a few minutes, forming dimethyl sulfide as the only byproduct. The newly formed isocyanates may be used directly or isolated in high purity by solvent evaporation.
Collapse
Affiliation(s)
- Hoang V Le
- Department of Chemistry & Chemical Biology, Baker Laboratory, Cornell University , Ithaca, New York 14853-1301, United States
| | | |
Collapse
|
6
|
Burés J, Martín M, Urpí F, Vilarrasa J. Catalytic Staudinger—Vilarrasa Reaction for the Direct Ligation of Carboxylic Acids and Azides. J Org Chem 2009; 74:2203-6. [DOI: 10.1021/jo802825e] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jordi Burés
- Departament de Química Orgànica, Facultat de Química, Universitat de Barcelona, 08028 Barcelona, Catalonia, Spain
| | - Manuel Martín
- Departament de Química Orgànica, Facultat de Química, Universitat de Barcelona, 08028 Barcelona, Catalonia, Spain
| | - Fèlix Urpí
- Departament de Química Orgànica, Facultat de Química, Universitat de Barcelona, 08028 Barcelona, Catalonia, Spain
| | - Jaume Vilarrasa
- Departament de Química Orgànica, Facultat de Química, Universitat de Barcelona, 08028 Barcelona, Catalonia, Spain
| |
Collapse
|
7
|
|
8
|
Ichikawa Y, Nishiyama T, Isobe M. Stereospecific synthesis of the alpha- and beta-D-glucopyranosyl ureas. J Org Chem 2001; 66:4200-5. [PMID: 11397154 DOI: 10.1021/jo0100751] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new, one-pot, two-stage procedure for the preparation of the alpha- and beta-D-glucopyranosyl ureas has been developed. Oxidation of glucopyranosyl isocyanides provides glucopyranosyl isocyanates, which can be trapped in situ with amines to afford good yields of glucopyranosyl ureas. Application of this method establishes the successful synthesis of the hitherto unknown N,N'-di-alpha,alpha- and alpha,beta-D-glucopyranosyl ureas.
Collapse
Affiliation(s)
- Y Ichikawa
- Laboratory of Organic Chemistry, School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan.
| | | | | |
Collapse
|
9
|
An easy access to anomeric glycosyl amides and imines(Schiff bases) via transformation of glycopyranosyl trimethylphosphinimides. Tetrahedron 2001. [DOI: 10.1016/s0040-4020(01)00380-5] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
10
|
Stimac A, Kobe J. Studies on the origin of stereoselectivity in the synthesis of 1,2-trans glycofuranosyl azides. Carbohydr Res 2000; 324:149-60. [PMID: 10724529 DOI: 10.1016/s0008-6215(99)00293-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The stereoselectivity of the 1,2-trans directed, Lewis acid-catalysed azidation of peracylated furanoses was found to depend on the reactivity of the azide donor (azide nucleophilicity) and the configuration at the anomeric centre relative to the neighbouring 2-O-acyl group. Reactions of 1,2-trans glycosyl esters with highly nucleophilic azide donors, generated from SnCl4 and Me3SiN3, were stereospecific. The results are interpreted in terms of the rapid reaction of the azide species with bicyclic 1,2-acyloxonium (1,2-O-alkyliumdiyl-D-glycofuranose) ions, which were the primarily formed reactive intermediates. When using 1,2-cis glycosyl esters as starting materials the selectivity was reduced (90-94% de); the same is true with 1,2-trans counterparts if less nucleophilic Me3SiN3 in combination with Me3SiOTf catalyst was used. This occurred due to the appearance of the more reactive but less selective oxocarbenium (glycofuranoxonium) ions either as primarily formed reactive intermediates in the former case or after equilibration with acyloxonium ions in the latter case. Protected 1,2-trans beta-D-glycofuranosyl azides with ribo, xylo and 3-deoxy-erythro-pento configurations were best prepared from the corresponding glycosyl esters using 0.05 equivalents of SnCl4, i.e., under anomerization-free conditions. Azidation of methyl glycofuranosides proceeds with inferior (80-90% de) and less predictable selectivity irrespective of the starting anomeric configuration.
Collapse
Affiliation(s)
- A Stimac
- National Institute of Chemistry, Ljubljana, Slovenia
| | | |
Collapse
|
11
|
Györgydeák Z, Szilágyi L, Dinya Z, Jekö J. Practical route to the anomeric methyl (5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-d-glycero-d-galacto-non-2-ulopyranosyl)onate azides. Carbohydr Res 1996. [DOI: 10.1016/s0008-6215(96)00136-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
12
|
|
13
|
|
14
|
|
15
|
Barluenga J, Palacios F. SYNTHESIS OF REACTIVITY OF λ5-PHOSPHAZENES. USES AS SYNTHETIC INTERMEDIATES. ORG PREP PROCED INT 1991. [DOI: 10.1080/00304949109458286] [Citation(s) in RCA: 79] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
16
|
Synthetic studies on (+)-hydantocidin (3): a new synthetic method for construction of the spiro-hydantoin ring at the anomeric position of D-ribofuranose. Tetrahedron 1991. [DOI: 10.1016/s0040-4020(01)96124-1] [Citation(s) in RCA: 105] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
17
|
Transformationen von ?-Glycofuranosylisocyaniden in Tetrahydrofuranderivate. MONATSHEFTE FUR CHEMIE 1990. [DOI: 10.1007/bf00809773] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
18
|
Improved synthesis of 6-deoxy-1,2-O-isopropylidene-?-L-talofuranose and 6-deoxy-1,2-O-isopropylidene-?-L-idofuranose. MONATSHEFTE FUR CHEMIE 1990. [DOI: 10.1007/bf00809774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
19
|
Zimmermann P, Greilich U, Schmidt RR. Total synthesis of a hexaosyl ceramide glycolipid acting as a receptor for macrophage migration inhibition-factor. Tetrahedron Lett 1990. [DOI: 10.1016/s0040-4039(00)98802-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|