301
|
Lichtor PA, Miller SJ. One-bead-one-catalyst approach to aspartic acid-based oxidation catalyst discovery. ACS COMBINATORIAL SCIENCE 2011; 13:321-6. [PMID: 21417485 DOI: 10.1021/co200010v] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
We report an approach to the high-throughput screening of asymmetric oxidation catalysts. The strategy is based on application of the one-bead-one-compound library approach, wherein each of our catalyst candidates is based on a peptide scaffold. For this purpose, we rely on a recently developed catalytic cycle that employs an acid-peracid shuttle. To implement our approach, we developed a compatible linker and demonstrated that the library format is amenable to screening and sequencing of catalysts employing partial Edman degradation and MALDI mass spectrometry analysis. The system was applied to the discovery (and rediscovery) of catalysts for the enantioselective oxidation of a cyclohexene derivative. The system is now poised for application to unprecedented substrate classes for asymmetric oxidation reactions.
Collapse
Affiliation(s)
- Phillip A. Lichtor
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107, United States
| | - Scott J. Miller
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107, United States
| |
Collapse
|
302
|
Chen S, Liu Z, Shi E, Chen L, Wei W, Li H, Cheng Y, Wan X. Ruthenium-Catalyzed Oxidation of Alkenes at Room Temperature: A Practical and Concise Approach to α-Diketones. Org Lett 2011; 13:2274-7. [DOI: 10.1021/ol200716d] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shulin Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zhaojun Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Erbo Shi
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Long Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Wei Wei
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Hong Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yannan Cheng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| |
Collapse
|
303
|
Pyrazinium Salts as Efficient Organocatalysts of Mild Oxidations with Hydrogen Peroxide. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201000906] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
304
|
Canterbury DP, Micalizio GC. A convergent route to the CDEF-tetracycle of pectenotoxin-2. Org Lett 2011; 13:2384-7. [PMID: 21476517 DOI: 10.1021/ol200627d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A convergent synthesis of the CDEF-tetracyclic region of pectenotoxin-2 (PTX-2) is described. The synthetic pathway derives from a head-to-tail union of 2 equiv of linalool to establish a stereodefined DEF-tricyclic aldehyde. Subsequent coupling with a "northern" fragment enolate, followed by a tandem Sharpless epoxidation/cyclization, delivers the C10-C26 polycyclic region of the natural product.
Collapse
Affiliation(s)
- Daniel P Canterbury
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | | |
Collapse
|
305
|
Affiliation(s)
- Simona Bonollo
- Laboratory of Green Synthetic Organic Chemistry, Dipartimento di Chimica Università di Perugia, 8, Via Elce di Sotto, 06123 Perugia, Italy, Fax: +39‐075‐5855560
| | - Daniela Lanari
- Laboratory of Green Synthetic Organic Chemistry, Dipartimento di Chimica Università di Perugia, 8, Via Elce di Sotto, 06123 Perugia, Italy, Fax: +39‐075‐5855560
| | - Luigi Vaccaro
- Laboratory of Green Synthetic Organic Chemistry, Dipartimento di Chimica Università di Perugia, 8, Via Elce di Sotto, 06123 Perugia, Italy, Fax: +39‐075‐5855560
| |
Collapse
|
306
|
Huang K, Wang H, Stepanenko V, De Jesús M, Torruellas C, Correa W, Ortiz-Marciales M. Chiral epoxides via borane reduction of 2-haloketones catalyzed by spiroborate ester: application to the synthesis of optically pure 1,2-hydroxy ethers and 1,2-azido alcohols. J Org Chem 2011; 76:1883-6. [PMID: 21294519 PMCID: PMC3055923 DOI: 10.1021/jo102294j] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
An enantioselective borane-mediated reduction of a variety of 2-haloketones with 10% spiroaminoborate ester 1 as catalyst is described. By a simple basic workup of 2-halohydrins, optically active epoxides are obtained in high yield and with excellent enantiopurity (up to 99% ee). Ring-opening of oxiranes with phenoxides or sodium azide is investigated under different reaction conditions affording nonracemic 1,2-hydroxy ethers and 1,2-azido alcohols with excellent enantioselectivity (99% ee) and in good to high chemical yield.
Collapse
Affiliation(s)
- Kun Huang
- Department of Chemistry, University of Puerto Rico-Humacao, CUH Station, Humacao, Puerto Rico 00791, USA
| | - Haiyang Wang
- Department of Chemistry, University of Puerto Rico-Humacao, CUH Station, Humacao, Puerto Rico 00791, USA
| | - Viatcheslav Stepanenko
- Department of Chemistry, University of Puerto Rico-Humacao, CUH Station, Humacao, Puerto Rico 00791, USA
| | - Melvin De Jesús
- Department of Chemistry, University of Puerto Rico-Humacao, CUH Station, Humacao, Puerto Rico 00791, USA
| | - Carilyn Torruellas
- Department of Chemistry, University of Puerto Rico-Humacao, CUH Station, Humacao, Puerto Rico 00791, USA
| | - Wildeliz Correa
- Department of Chemistry, University of Puerto Rico-Humacao, CUH Station, Humacao, Puerto Rico 00791, USA
| | - Margarita Ortiz-Marciales
- Department of Chemistry, University of Puerto Rico-Humacao, CUH Station, Humacao, Puerto Rico 00791, USA
| |
Collapse
|
307
|
Designing Molecular Catalysts with Enhanced Lewis Acidity. ADVANCES IN CATALYSIS 2011. [DOI: 10.1016/b978-0-12-387772-7.00001-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
|
308
|
Kimachi T, Torii E, Kobayashi Y, Doe M, Ju-ichi M. Synthesis of Biologically Active (-)-Dehydroiso-.BETA.-lapachone and the Determination of Its Absolute Configuration. Chem Pharm Bull (Tokyo) 2011; 59:753-6. [DOI: 10.1248/cpb.59.753] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Eri Torii
- School of Pharmaceutical Sciences, Mukogawa Women's University
| | | | - Misae Doe
- School of Pharmaceutical Sciences, Mukogawa Women's University
| | | |
Collapse
|
309
|
Reichard HA, Micalizio GC. Metallacycle-Mediated Cross-Coupling with Substituted and Electronically Unactivated Alkenes. Chem Sci 2011; 4:573-589. [PMID: 21436986 DOI: 10.1039/c0sc00394h] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This perspective surveys the history of- and recent advances in- metallacycle-mediated coupling chemistry of substituted alkenes. While the reaction of preformed metal-π complexes with ethylene was reported nearly 30 years ago, the generalization of this mode of bimolecular C-C bond formation to the regio- and stereoselective union of complex substrates has only recently begun to emerge. This perspective discusses early observations in this area, the challenges associated with controlling such processes, the evolution of a general strategy to overcome these challenges, and a summary of highly regio- and stereoselective convergent coupling reactions that are currently available by metallacycle-mediated cross-coupling with substituted alkenes.
Collapse
Affiliation(s)
- Holly A Reichard
- The Department of Chemistry, The Scripps Research Institute; Scripps-Florida, 130 Scripps Way #3A2, Jupiter, FL 33418, USA. ; Tel: 561 228 2463;
| | | |
Collapse
|
310
|
Synthesis of new carbohydrate-derived ketones as organocatalysts in the enantioselective epoxidation of arylalkenes. Part 2: Chiral ketones from sugars. Tetrahedron 2011. [DOI: 10.1016/j.tet.2010.11.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
311
|
Bisol TB, Bortoluzzi AJ, Sá MM. Nucleophilic ring-opening of epoxide and aziridine acetates for the stereodivergent synthesis of β-hydroxy and β-amino γ-lactams. J Org Chem 2010; 76:948-62. [PMID: 21194209 DOI: 10.1021/jo102267h] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly regio- and stereoselective synthesis of novel β,γ-disubstituted γ-lactams with either an anti or syn relative configuration was developed from readily available epoxide and aziridine acetates. The key steps include the regio- and diastereocontrolled nucleophilic ring-opening of these three-membered heterocycles followed by mild reductive cyclization of the γ-azido ester intermediate. The method was also extended to an asymmetric synthesis of (4R,5S)-4-hydroxy-5-phenylpyrrolidin-2-one from a chiral epoxide acetate. The main features of this versatile synthesis of functionalized γ-lactams include the involvement of inexpensive reagents and mild conditions together with high chemical efficiency.
Collapse
Affiliation(s)
- Tula B Bisol
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | | | | |
Collapse
|
312
|
Chow TWS, Wong ELM, Guo Z, Liu Y, Huang JS, Che CM. cis-Dihydroxylation of alkenes with oxone catalyzed by iron complexes of a macrocyclic tetraaza ligand and reaction mechanism by ESI-MS spectrometry and DFT calculations. J Am Chem Soc 2010; 132:13229-39. [PMID: 20812697 DOI: 10.1021/ja100967g] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[Fe(III)(L-N(4)Me(2))Cl(2)](+) (1, L-N(4)Me(2) = N,N'-dimethyl-2,11-diaza[3.3](2,6)pyridinophane) is an active catalyst for cis-dihydroxylation of various types of alkenes with oxone at room temperature using limiting amounts of alkene substrates. In the presence of 0.7 or 3.5 mol % of 1, reactions of electron-rich alkenes, including cyclooctene, styrenes, and linear alkenes, with oxone (2 equiv) for 5 min resulted in up to >99% substrate conversion and afforded cis-diol products in up to 67% yield, with cis-diol/epoxide molar ratio of up to 16.8:1. For electron-deficient alkenes including α,β-unsaturated esters and α,β-unsaturated ketones, their reactions with oxone (2 equiv) catalyzed by 1 (3.5 mol %) for 5 min afforded cis-diols in up to 99% yield with up to >99% substrate conversion. A large-scale cis-dihydroxylation of methyl cinnamate (9.7 g) with oxone (1 equiv) afforded the cis-diol product (8.4 g) in 84% yield with 85% substrate conversion. After catalysis, the L-N(4)Me(2) ligand released due to demetalation can be reused to react with newly added Fe(ClO(4))(2)·4H(2)O to generate an iron catalyst in situ, which could be used to restart the catalytic alkene cis-dihydroxylation. Mechanistic studies by ESI-MS, isotope labeling studies, and DFT calculations on the 1-catalyzed cis-dihydroxylation of dimethyl fumarate with oxone reveal possible involvement of cis-HO-Fe(V)═O and/or cis-O═Fe(V)═O species in the reaction; the cis-dihydroxylation reactions involving cis-HO-Fe(V)═O and cis-O═Fe(V)═O species both proceed by a concerted but highly asynchronous mechanism, with that involving cis-HO-Fe(V)═O being more favorable due to a smaller activation barrier.
Collapse
Affiliation(s)
- Toby Wai-Shan Chow
- Department of Chemistry and Open Laboratory of Chemical Biology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The University of Hong Kong, Pokfulam Road, Hong Kong
| | | | | | | | | | | |
Collapse
|
313
|
Tanaka H, Nishikawa H, Uchida T, Katsuki T. Photopromoted Ru-catalyzed asymmetric aerobic sulfide oxidation and epoxidation using water as a proton transfer mediator. J Am Chem Soc 2010; 132:12034-41. [PMID: 20701287 DOI: 10.1021/ja104184r] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ru(NO)-salen complexes were found to catalyze asymmetric aerobic oxygen atom transfer reactions such as sulfide oxidation and epoxidation in the presence of water under visible light irradiation at room temperature. Oxidation of sulfides including alkyl aryl sulfides and 2-substituted 1,3-dithianes using complex 2 as the catalyst proceeded with moderate to high enantioselectivity of up to 98% ee, and epoxidation of conjugated olefins using complex 3 as the catalyst proceeded with good to high enantioselectivity of 76-92% ee. Unlike biological oxygen atom transfer reactions that need a proton and electron transfer system, this aerobic oxygen atom transfer reaction requires neither such a system nor a sacrificial reductant. Although the mechanism of this oxidation has not been completely clarified, some experimental results support the notion that an aqua ligand coordinated with the ruthenium ion serves as a proton transfer agent for the oxygen activation process, and it is recycled and used as the proton transfer mediator during the process. Thus, we have achieved catalytic asymmetric oxygen atom transfer reaction using molecular oxygen that can be carried out under ambient conditions.
Collapse
Affiliation(s)
- Haruna Tanaka
- Department of Chemistry, Faculty of Science, Graduate School, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | | | | | | |
Collapse
|
314
|
Oikawa M, Hashimoto R, Sasaki M. Asymmetric Synthesis and in vivo Biological Inactivity of the Right-Hand Terpenoid Fragment of Terpendole E. European J Org Chem 2010. [DOI: 10.1002/ejoc.201001104] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
315
|
Weiß KM, Tsogoeva SB. Enantioselective epoxidation of electron-deficient olefins: an organocatalytic approach. CHEM REC 2010; 11:18-39. [DOI: 10.1002/tcr.201000006] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2010] [Indexed: 11/08/2022]
|
316
|
De Faveri G, Ilyashenko G, Watkinson M. Recent advances in catalytic asymmetric epoxidation using the environmentally benign oxidant hydrogen peroxide and its derivatives. Chem Soc Rev 2010; 40:1722-60. [PMID: 21079863 DOI: 10.1039/c0cs00077a] [Citation(s) in RCA: 270] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
There has been a recent drive to develop asymmetric catalytic methods to produce epoxides using environmentally benign oxidants, especially hydrogen peroxide. This critical review discusses the advances that have been made using both metal-based and organocatalytic homogeneous catalysts (142 references).
Collapse
Affiliation(s)
- Giorgio De Faveri
- The Joseph Priestly Building, School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, UK
| | | | | |
Collapse
|
317
|
|
318
|
Li J, Fu N, Zhang L, Zhou P, Luo S, Cheng JP. Chiral Primary Amine Catalyzed Asymmetric Epoxidation of α-Substituted Acroleins. European J Org Chem 2010. [DOI: 10.1002/ejoc.201001117] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
319
|
Zvagulis A, Bonollo S, Lanari D, Pizzo F, Vaccaro L. 2-tert-Butylimino-2-diethylamino-1,3-dimethylperhydro-1,3,2- diazaphosphorine Supported on Polystyrene (PS-BEMP) as an Efficient Recoverable and Reusable Catalyst for the Phenolysis of Epoxides under Solvent-Free Conditions. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000375] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
320
|
Ducháčková L, Kadlčíková A, Kotora M, Roithová J. Oxygen Superbases as Polar Binding Pockets in Nonpolar Solvents. J Am Chem Soc 2010; 132:12660-7. [DOI: 10.1021/ja103744f] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lucie Ducháčková
- Department of Organic Chemistry, Charles University in Prague, Hlavova 8, 12843 Prague 2, Czech Republic
| | - Aneta Kadlčíková
- Department of Organic Chemistry, Charles University in Prague, Hlavova 8, 12843 Prague 2, Czech Republic
| | - Martin Kotora
- Department of Organic Chemistry, Charles University in Prague, Hlavova 8, 12843 Prague 2, Czech Republic
| | - Jana Roithová
- Department of Organic Chemistry, Charles University in Prague, Hlavova 8, 12843 Prague 2, Czech Republic
| |
Collapse
|
321
|
Kavanagh S, Piccinini A, Connon S. Efficient Catalytic Corey–Chaykovsky Reactions Involving Ketone Substrates. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000255] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sarah A. Kavanagh
- Centre for Synthesis and Chemical Biology, School of Chemistry, University of Dublin, Trinity College, Dublin 2, Ireland, Fax: (+353)‐167‐12826; telephone: (+353)‐1‐60‐81306
| | - Alessandro Piccinini
- Centre for Synthesis and Chemical Biology, School of Chemistry, University of Dublin, Trinity College, Dublin 2, Ireland, Fax: (+353)‐167‐12826; telephone: (+353)‐1‐60‐81306
| | - Stephen J. Connon
- Centre for Synthesis and Chemical Biology, School of Chemistry, University of Dublin, Trinity College, Dublin 2, Ireland, Fax: (+353)‐167‐12826; telephone: (+353)‐1‐60‐81306
| |
Collapse
|
322
|
Armstrong A, Bettati M, White AJ. Catalytic enantioselective alkene epoxidation using novel spirocyclic N-carbethoxy-azabicyclo[3.2.1]octanones. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
323
|
Bray CD, Minicone F. Stereocontrolled synthesis of quaternary cyclopropyl esters. Chem Commun (Camb) 2010; 46:5867-9. [PMID: 20628687 DOI: 10.1039/c0cc01333a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Treatment of a variety of enantiopure terminal epoxides with the anion of a range of 2-substituted triethylphosphonoacetates leads to an array of quaternary cyclopropyl esters with high yield and diastereocontrol.
Collapse
Affiliation(s)
- Christopher D Bray
- Queen Mary University of London, School of Biological and Chemical Sciences, Mile End Road, London, E1 4NS, UK.
| | | |
Collapse
|
324
|
Li Z, Yamamoto H. Zirconium(IV)- and hafnium(IV)-catalyzed highly enantioselective epoxidation of homoallylic and bishomoallylic alcohols. J Am Chem Soc 2010; 132:7878-80. [PMID: 20481541 PMCID: PMC2886809 DOI: 10.1021/ja100951u] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this report, zirconium(IV)- and hafnium(IV)-bishydroxamic acid complexes were utilized in the highly enantioselective epoxidation of homoallylic alcohols and bishomoallylic alcohols, which used to be quite difficult substrates for other types of asymmetric epoxidation reactions. The performance of the catalyst was improved by adding polar additive and molecular sieves. For homoallylic alcohols, the reaction could provide epoxy alcohols in up to 83% yield and up to 98% ee, while, for bishomoallylic alcohols, up to 79% yield and 99% ee of epoxy alcohols rather than cyclized tetrahydrofuran compounds could be obtained in most cases.
Collapse
Affiliation(s)
- Zhi Li
- Department of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637
| | - Hisashi Yamamoto
- Department of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637
| |
Collapse
|
325
|
Albrecht Ł, Jiang H, Dickmeiss G, Gschwend B, Hansen SG, Jørgensen KA. Asymmetric Formal trans-Dihydroxylation and trans-Aminohydroxylation of α,β-Unsaturated Aldehydes via an Organocatalytic Reaction Cascade. J Am Chem Soc 2010; 132:9188-96. [DOI: 10.1021/ja103538s] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Łukasz Albrecht
- Center for Catalysis, Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Hao Jiang
- Center for Catalysis, Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Gustav Dickmeiss
- Center for Catalysis, Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Björn Gschwend
- Center for Catalysis, Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Signe Grann Hansen
- Center for Catalysis, Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Karl Anker Jørgensen
- Center for Catalysis, Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
| |
Collapse
|
326
|
Bray CD, de Faveri G. Stereocontrolled Synthesis of trans-Cyclopropyl Sulfones from Terminal Epoxides. J Org Chem 2010; 75:4652-5. [DOI: 10.1021/jo100844g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Christopher D. Bray
- Queen Mary University of London, School of Biological and Chemical Sciences, Mile End Road, London E1 4NS, U.K
| | - Giorgio de Faveri
- Queen Mary University of London, School of Biological and Chemical Sciences, Mile End Road, London E1 4NS, U.K
| |
Collapse
|
327
|
Novikov R, Lacour J. Enantioselective iminium-catalyzed epoxidation of hindered trisubstituted allylic alcohols. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.06.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
328
|
Joyasawal S, Lotesta SD, Akhmedov NG, Williams LJ. Spirodiepoxide strategy to the C ring of pectenotoxin 4: synthesis of the C1-C19 sector. Org Lett 2010; 12:988-91. [PMID: 20121257 DOI: 10.1021/ol902984e] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis of a C1-C19 precursor to pectenotoxin 4 is presented. The strategy employed the functionalized allene shown. Key features include: olefin metathesis of two simple fragments to prepare the left portion of the allene-precursor, diastereoselective propargylation of an epoxy aldehyde to form the right portion, use of the DMDO-stable m-fluorobenzyl ether, and an allene spirodiepoxidation/C-ring formation cascade.
Collapse
Affiliation(s)
- Sipak Joyasawal
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
| | | | | | | |
Collapse
|
329
|
He L, Liu WJ, Ren L, Lei T, Gong LZ. Storable and Air-Stable Zirconium Complex-Catalyzed Highly Enantioselective Darzens Reaction of Diazoacetamide with Aldehydes. Adv Synth Catal 2010. [DOI: 10.1002/adsc.200900845] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
330
|
Boone MA, Tong R, McDonald FE, Lense S, Cao R, Hardcastle KI. Biomimetic Syntheses from Squalene-Like Precursors: Synthesis of ent-Abudinol B and Reassessment of the Structure of Muzitone. J Am Chem Soc 2010; 132:5300-8. [DOI: 10.1021/ja1006806] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthew A. Boone
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
| | - Rongbiao Tong
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
| | | | - Sheri Lense
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
| | - Rui Cao
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
| | | |
Collapse
|
331
|
Vilotijevic I, Jamison TF. Synthesis of marine polycyclic polyethers via endo-selective epoxide-opening cascades. Mar Drugs 2010; 8:763-809. [PMID: 20411125 PMCID: PMC2857356 DOI: 10.3390/md8030763] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2010] [Revised: 03/11/2010] [Accepted: 03/18/2010] [Indexed: 11/17/2022] Open
Abstract
The proposed biosynthetic pathways to ladder polyethers of polyketide origin and oxasqualenoids of terpenoid origin share a dramatic epoxide-opening cascade as a key step. Polycyclic structures generated in these biosynthetic pathways display biological effects ranging from potentially therapeutic properties to extreme lethality. Much of the structural complexity of ladder polyether and oxasqualenoid natural products can be traced to these hypothesized cascades. In this review we summarize how such epoxide-opening cascade reactions have been used in the synthesis of ladder polyethers and oxasqualenoid natural products.
Collapse
Affiliation(s)
- Ivan Vilotijevic
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; E-Mail:
(I.V.)
| | - Timothy F. Jamison
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; E-Mail:
(I.V.)
| |
Collapse
|
332
|
Whitehead DC, Yousefi R, Jaganathan A, Borhan B. An organocatalytic asymmetric chlorolactonization. J Am Chem Soc 2010; 132:3298-300. [PMID: 20170118 PMCID: PMC2883568 DOI: 10.1021/ja100502f] [Citation(s) in RCA: 264] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A reagent controlled organocatalytic enantioselective chlorolactonization reaction has been developed. Several 4-aryl pentenoic acids were cyclized in the presence of 0.1 equiv of (DHQD)(2)PHAL, employing various N-chlorinated hydantoins as the terminal chlorenium source. Ten examples are presented with selectivities ranging from 43 to 90% ee. This work represents the first example of an enantioselective reagent-controlled chlorolactonization that approaches synthetically useful enantioselectivities.
Collapse
Affiliation(s)
- Daniel C Whitehead
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | | | | | | |
Collapse
|
333
|
Zhao B, Du H, Cui S, Shi Y. Synthetic and mechanistic studies on Pd(0)-catalyzed diamination of conjugated dienes. J Am Chem Soc 2010; 132:3523-32. [PMID: 20166669 PMCID: PMC2846102 DOI: 10.1021/ja909459h] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Various dienes and a triene can be regioselectively diaminated at the internal double bond with good yields and high diastereoselectivity using di-tert-butyldiaziridinone (5) as the nitrogen source and Pd(PPh(3))(4) (1-10 mol %) as the catalyst. Kinetic studies with (1)H NMR spectroscopy show that the diamination is first-order in total Pd catalyst and inverse first-order in PPh(3). For reactive dienes, such as 1-methoxybutadiene (6g) and alkyl 1,3-butadienes (6a, 6j), the diamination is first-order in di-tert-butyldiaziridinone (5) and zero-order in the olefin. For olefins with relatively low reactivity, such as (E)-1-phenylbutadiene (6b) and (3E,5E)-1,3,5-decatriene (6i), similar diamination rates were observed when 3.5 equiv of olefins were used. Pd(PPh(3))(2) is likely to be the active species for the insertion of Pd(0) into the N-N bond of di-tert-butyldiaziridinone (5) to form a four-membered Pd(II) complex (A), which can be detected by NMR spectroscopy. The olefin complex (B), formed from intermediate A via ligand exchange between the olefin substrate and the PPh(3), undergoes migratory insertion and reductive elimination to give the diamination product and regenerate the Pd(0) catalyst.
Collapse
Affiliation(s)
- Baoguo Zhao
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523
| | - Haifeng Du
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523
| | - Sunliang Cui
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523
| | - Yian Shi
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523
| |
Collapse
|
334
|
Xiong D, Wu M, Wang S, Li F, Xia C, Sun W. Synthesis of salan (salalen) ligands derived from binaphthol for titanium-catalyzed asymmetric epoxidation of olefins with aqueous H2O2. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.01.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
335
|
Guaragna A, D’Alonzo D, Paolella C, Napolitano C, Palumbo G. Highly Stereoselective de Novo Synthesis of l-Hexoses. J Org Chem 2010; 75:3558-68. [DOI: 10.1021/jo100077k] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Annalisa Guaragna
- Dipartimento di Chimica Organica e Biochimica, Università di Napoli Federico II-Complesso Universitario Monte Sant'Angelo, via Cinthia, 4 I-80126 Napoli, Italy
| | - Daniele D’Alonzo
- Dipartimento di Chimica Organica e Biochimica, Università di Napoli Federico II-Complesso Universitario Monte Sant'Angelo, via Cinthia, 4 I-80126 Napoli, Italy
| | - Concetta Paolella
- Dipartimento di Chimica Organica e Biochimica, Università di Napoli Federico II-Complesso Universitario Monte Sant'Angelo, via Cinthia, 4 I-80126 Napoli, Italy
| | - Carmela Napolitano
- School of Chemistry, National University of Ireland, University Road, Galway, Ireland
| | - Giovanni Palumbo
- Dipartimento di Chimica Organica e Biochimica, Università di Napoli Federico II-Complesso Universitario Monte Sant'Angelo, via Cinthia, 4 I-80126 Napoli, Italy
| |
Collapse
|
336
|
Burke CP, Shi Y. Enantioselective epoxidation of nonconjugated cis-olefins by chiral dioxirane. Org Lett 2010; 11:5150-3. [PMID: 19824657 DOI: 10.1021/ol901724v] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A variety of nonconjugated cis-olefins has been enantioselectively epoxidized with chiral ketones 2, and up to 92% ee has been obtained. The two prochiral faces of an olefin are likely stereodifferentiated by the relative hydrophobicity of the olefin substituents and/or allylic oxygen functionality.
Collapse
Affiliation(s)
- Christopher P Burke
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA
| | | |
Collapse
|
337
|
Wong OA, Shi Y. Asymmetric epoxidation of fluoroolefins by chiral dioxirane. Fluorine effect on enantioselectivity. J Org Chem 2010; 74:8377-80. [PMID: 19795858 DOI: 10.1021/jo901553t] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The asymmetric epoxidation of various fluoroolefins has been studied using chiral ketone catalyst, and up to 93% ee was achieved with fructose-derived ketone 1.
Collapse
Affiliation(s)
- O Andrea Wong
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA
| | | |
Collapse
|
338
|
Yasuda M, Tsuruwa K, Azuma T, Babu SA, Baba A. Stereoselective synthesis of vicinal diols by the stannous chloride-mediated reaction of unprotected hydroxyallylic stannane with carbonyl compounds. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.09.063] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
339
|
Zhang M, Hu Y, Zhang S. Multi-product classes obtained from allylation of alpha-halo ketones with allylzinc bromide. Chemistry 2009; 15:10732-5. [PMID: 19746476 DOI: 10.1002/chem.200901487] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Min Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou, 215123, PR China
| | | | | |
Collapse
|
340
|
Tong R, Boone MA, McDonald FE. Stereo- and Regioselective Synthesis of Squalene Tetraepoxide. J Org Chem 2009; 74:8407-9. [DOI: 10.1021/jo901920d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rongbiao Tong
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
| | - Matthew A. Boone
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
| | | |
Collapse
|
341
|
|
342
|
Yoshimura F, Matsui A, Hirai A, Tanino K, Miyashita M. Stereoselective SN2′ alkylation reaction sequence of the γ,δ-epoxy α,β-unsaturated ester system via γ,δ-chlorohydrin intermediates by the use of a R3Al–CuCN reagent. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.06.106] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
343
|
Liu WJ, Lv BD, Gong LZ. An Asymmetric Catalytic Darzens Reaction between Diazoacetamides and Aldehydes Generatescis-Glycidic Amides with High Enantiomeric Purity. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200903061] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
344
|
Liu WJ, Lv BD, Gong LZ. An Asymmetric Catalytic Darzens Reaction between Diazoacetamides and Aldehydes Generatescis-Glycidic Amides with High Enantiomeric Purity. Angew Chem Int Ed Engl 2009; 48:6503-6. [DOI: 10.1002/anie.200903061] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
345
|
Johnston EV, Karlsson EA, Tran LH, Åkermark B, Bäckvall JE. Efficient Synthesis of Hybrid (Hydroquinone-Schiff base)cobalt Oxidation Catalysts. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900312] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
346
|
Litvinas ND, Brodsky BH, Du Bois J. C-H hydroxylation using a heterocyclic catalyst and aqueous H2O2. Angew Chem Int Ed Engl 2009; 48:4513-6. [PMID: 19449353 DOI: 10.1002/anie.200901353] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Substituted benzoxathiazines function as catalysts for the selective hydroxylation of tertiary C-H bonds. Mechanistic studies have revealed an unanticipated disparity between oxaziridine reactivity and catalyst performance and have given way to a new catalyst and an aqueous H(2)O(2) reaction protocol that greatly facilitate such transformations (see scheme).
Collapse
Affiliation(s)
- Nichole D Litvinas
- Department of Chemistry, Stanford University, Stanford, CA 94305-5080, USA
| | | | | |
Collapse
|
347
|
Matsumoto K, Kubo T, Katsuki T. Highly Enantioselective Epoxidation ofcis-Alkenylsilanes. Chemistry 2009; 15:6573-5. [DOI: 10.1002/chem.200901048] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
348
|
Kimachi T, Torii E, Ishimoto R, Sakue A, Ju-ichi M. Asymmetric total synthesis of rhinacanthin A. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.06.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
349
|
|
350
|
Vilotijevic I, Jamison T. Epoxidöffnungskaskaden zur Synthese polycyclischer Polyether-Naturstoffe. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200900600] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|