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Drop A, Wojtasek H, Frąckowiak-Wojtasek B. Synthesis of disparlure and monachalure enantiomers from 2,3-butanediacetals. Beilstein J Org Chem 2020; 16:616-620. [PMID: 32280390 PMCID: PMC7136567 DOI: 10.3762/bjoc.16.57] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 03/20/2020] [Indexed: 12/04/2022] Open
Abstract
2,3-Butanediacetal derivatives were used for the stereoselective synthesis of unsymmetrically substituted cis-epoxides. The procedure was applied for the preparation of both enantiomers of disparlure and monachalure, the components of the sex pheromones of the gypsy moth (Lymantria dispar) and the nun moth (Lymantria monacha) using methyl (2S,3R,5R,6R)-3-ethylsulfanylcarbonyl-5,6-dimethoxy-5,6-dimethyl-1,4-dioxane-2-carboxylate as the starting material.
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Affiliation(s)
- Adam Drop
- Institute of Chemistry, Opole University, ul. Oleska 48, 45-052 Opole, Poland.,ZWP EMITOR S.C., ul. Olimpijska 6, 45-681 Opole, Poland
| | - Hubert Wojtasek
- Institute of Chemistry, Opole University, ul. Oleska 48, 45-052 Opole, Poland
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2
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Zhang XL, Wu QP, Zhang QS. Efficient Three-Component Strecker Reaction of Acetals and Aromatic Amines Catalysed by Hafnium Tetrachloride at Room Temperature. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/174751913x13814077309487] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Xue-Lin Zhang
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Qin-Pei Wu
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Qing-Shan Zhang
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, P.R. China
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Zhang XL, Wu QP, Zhang QS. Indium-Catalysed Multicomponent Reaction of Acetals with Dibenzylamine and Alkynes. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/174751913x13816565482472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Xue-Lin Zhang
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Qin-Pei Wu
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Qing-Shan Zhang
- School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, P.R. China
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Drop A, Wojtasek H, Frąckowiak-Wojtasek B. Selective isomerization of a trans -butanediacetal derivative of tartaric acid with differentiating substituents at C-2 and C-3. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.02.072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Schneider U, Dao HT, Kobayashi S. Unusual Carbon−Carbon Bond Formations between Allylboronates and Acetals or Ketals Catalyzed by a Peculiar Indium(I) Lewis Acid. Org Lett 2010; 12:2488-91. [DOI: 10.1021/ol100450s] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Uwe Schneider
- Department of Chemistry, School of Science and Graduate School of Pharmaceutical Sciences, The University of Tokyo, The HFRE Division, ERATO, JST, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hai T. Dao
- Department of Chemistry, School of Science and Graduate School of Pharmaceutical Sciences, The University of Tokyo, The HFRE Division, ERATO, JST, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shu̅ Kobayashi
- Department of Chemistry, School of Science and Graduate School of Pharmaceutical Sciences, The University of Tokyo, The HFRE Division, ERATO, JST, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Carter CF, Baxendale IR, O'Brien M, Pavey JBJ, Ley SV. Synthesis of acetal protected building blocks using flow chemistry with flow I.R. analysis: preparation of butane-2,3-diacetal tartrates. Org Biomol Chem 2009; 7:4594-7. [DOI: 10.1039/b917289k] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Abstract
1,2-Diacetals are readily prepared, rigid structural motifs that provide a wide range of opportunities for applications in natural product assembly. These uses encompass selective 1,2-diol or alpha-hydroxy acid protection, enantiotopic recognition and desymmetrization methods, chiral memory applications, and reactivity control in oligosaccharide synthesis, as well as functioning as templating components, chiral auxiliaries, and building blocks. 1,2-Diacetals are often more stable and lead to products with enhanced crystallinity compared to their five-ring acetonide counterparts. Many 1,2-diacetals have favorable NMR parameters, which facilitate structural assignment, particularly during asymmetric reaction processes.
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Affiliation(s)
- Steven V Ley
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, U.K.
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Ley SV, Diez E, Dixon DJ, Guy RT, Michel P, Nattrass GL, Sheppard TD. Preparation of enantiopure butane-2,3-diacetals of glycolic acid and alkylation reactions leading to α-hydroxyacid and amide derivatives. Org Biomol Chem 2004; 2:3608-17. [PMID: 15592619 DOI: 10.1039/b412788a] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The preparation of butane-2,3-diacetal protected glycolic acid and related systems is described together with highly selective alkylation reactions of (R,R) and (S,S) butanediacetal protected glycolic acid. These compounds are readily deprotected to give enantiopure alpha-hydroxyacids, alpha-hydroxyesters or alpha-hydroxyamides by suitable choice of conditions.
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Affiliation(s)
- Steven V Ley
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK CB2 1EW.
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Li W, Waldkirch JP, Zhang X. Chiral C(2)-symmetric ligands with 1,4-dioxane backbone derived from tartrates: syntheses and applications in asymmetric hydrogenation. J Org Chem 2002; 67:7618-23. [PMID: 12398481 DOI: 10.1021/jo020250t] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Chiral 1,4-diphenylphosphines 5-7 as well as thioether 8 were synthesized from tartrates employing Ley's "BDA" and "Dispoke" methodologies as the key step. Rhodium(I) complexes with 5-7 are efficient catalysts for the asymmetric hydrogenation of beta-substituted enamides and MOM-protected beta-hydroxyl enamides, which furnished chiral amines or beta-amino alcohols with 94-->99% ee. These results indicated that the 1,4-dioxane backbone in the ligands having the general structure 2 played an important role in stabilizing metal-ligand chelate conformation. Higher enantioselectivities with ligand 2 were achieved compared with the analogous ligands having the general structure 1.
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Affiliation(s)
- Wenge Li
- Department of Chemistry, The Pennsylvania State University, University Park 16802, USA
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Kiyota H, Dixon DJ, Luscombe CK, Hettstedt S, Ley SV. Synthesis, structure revision, and absolute configuration of (+)-didemniserinolipid B, a serinol marine natural product from a tunicate Didemnum sp. Org Lett 2002; 4:3223-6. [PMID: 12227754 DOI: 10.1021/ol026421y] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[structure: see text] En route to proving the absolute and relative stereochemistry, through synthesis, of (+)-didemniserinolipid B (1), the first natural serinolipid isolated from a tunicate Didemnum sp., it was discovered that the isolated natural product was in fact the 31-sulfate configured 8R,9R,10R,13S,30S. This structural reassignment was only possible after the development of a microwave-assisted method for the sulfation of unreactive hydroxyl groups.
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Abstract
The total synthesis of the potential antitumour agent muricatetrocin C has provided an ideal stage for the exploitation and development of new chemistry. A convergent synthetic strategy has been realised incorporating three distinct pieces of methodology, these include a highly diastereoselective hetero-Diels-Alder reaction to construct the butenolide terminus, an oxygen to carbon rearrangement to install the trans-2,5-disubstituted tetrahydrofuran ring and a spatial desymmetrisation process to afford the anti-diol unit.
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Affiliation(s)
- Darren J Dixon
- Department of Chemistry, University of Cambridge Lensfield Road, Cambridge, CB2 1EW, UK
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Dixon DJ, Foster AC, Ley SV. The total synthesis of (+)-aspicilin using 2,3-butane diacetal protected butane tetrols via a chiral memory protocol. CAN J CHEM 2001. [DOI: 10.1139/v01-144] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The total syntheses of the polyhydroxylated macrolactone (+)-aspicilin and a diastereoisomer have been achieved via a concise route, starting from the spatially desymmetrized (R',R',R,S)-2,3-butanediacetal-protected butane tetrol 13. The key steps include a regioselective silyl protection of 13 and a stereoselective Lewis acid mediated addition of allyltributylstannane to the equatorially disposed aldehyde of 4. Macrocyclization is achieved using ring closing metathesis, after which selective hydrogenation and protecting group removal yields the natural product.Key words: aspicilin, butanediacetal, desymmetrization, macrolactone, metathesis.
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Díez E, Dixon DJ, Ley SV. Butane-2,3-Diacetal-Desymmetrized Glycolic Acid—A New Building Block for the Stereoselective Synthesis of Enantiopureα-Hydroxy Acids. Angew Chem Int Ed Engl 2001. [DOI: 10.1002/1521-3757(20010803)113:15<2990::aid-ange2990>3.0.co;2-r] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Díez E, Dixon DJ, Ley SV. Butane-2,3-Diacetal-Desymmetrized Glycolic Acid—A New Building Block for the Stereoselective Synthesis of Enantiopureα-Hydroxy Acids. Angew Chem Int Ed Engl 2001; 40:2906-2909. [DOI: 10.1002/1521-3773(20010803)40:15<2906::aid-anie2906>3.0.co;2-5] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2001] [Indexed: 11/10/2022]
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Ley SV, Baeschlin DK, Dixon DJ, Foster AC, Ince SJ, Priepke HW, Reynolds DJ. 1,2-diacetals: a new opportunity for organic synthesis. Chem Rev 2001; 101:53-80. [PMID: 11712194 DOI: 10.1021/cr990101j] [Citation(s) in RCA: 118] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S V Ley
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
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Dixon DJ, Ley SV, Reynolds DJ. The Total Synthesis of the Annonaceous Acetogenin, Muricatetrocin C We thank the EPSRC (D.J.D. and D.J.R.), the Novartis Research Fellowship (S.V.L.), and the BP Research Endowment (S.V.L.) for generous financial support for this work. Angew Chem Int Ed Engl 2000; 39:3622-3626. [PMID: 11091418 DOI: 10.1002/1521-3773(20001016)39:20<3622::aid-anie3622>3.0.co;2-h] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- DJ Dixon
- Department of Chemistry University of Cambridge Lensfield Road Cambridge, CB2 1EW (UK)
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