151
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Miyazawa K, Koike T, Akita M. Regiospecific Intermolecular Aminohydroxylation of Olefins by Photoredox Catalysis. Chemistry 2015; 21:11677-80. [DOI: 10.1002/chem.201501590] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Indexed: 01/07/2023]
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152
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Méndez-Sánchez D, Ríos-Lombardía N, Gotor V, Gotor-Fernández V. Asymmetric synthesis of azolium-based 1,2,3,4-tetrahydronaphthalen-2-ols through lipase-catalyzed resolutions. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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153
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Sugimoto H, Mikami A, Kai K, Sajith PK, Shiota Y, Yoshizawa K, Asano K, Suzuki T, Itoh S. cis-1,2-Aminohydroxylation of Alkenes Involving a Catalytic Cycle of Osmium(III) and Osmium(V) Centers: OsV(O)(NHTs) Active Oxidant with a Macrocyclic Tetradentate Ligand. Inorg Chem 2015; 54:7073-82. [DOI: 10.1021/acs.inorgchem.5b01083] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hideki Sugimoto
- Department
of Material and Life Science, Division of Advanced Science and Biotechnology,
Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Akine Mikami
- Department
of Material and Life Science, Division of Advanced Science and Biotechnology,
Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kenichiro Kai
- Department
of Material and Life Science, Division of Advanced Science and Biotechnology,
Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - P. K. Sajith
- Institute for Materials Chemistry and Engineering and
International Research Center for Molecular System, Kyushu University, 744
Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering and
International Research Center for Molecular System, Kyushu University, 744
Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering and
International Research Center for Molecular System, Kyushu University, 744
Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Elements Strategy Initiative for Catalysts & Batteries, Kyoto University, Nishi-ku, Kyoto 615-8520, Japan
| | - Kaori Asano
- Comprehensive Analysis Center, The Institute of Scientific
and Industrial Research (ISIR), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0057, Japan
| | - Takeyuki Suzuki
- Comprehensive Analysis Center, The Institute of Scientific
and Industrial Research (ISIR), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0057, Japan
| | - Shinobu Itoh
- Department
of Material and Life Science, Division of Advanced Science and Biotechnology,
Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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154
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Hu XQ, Chen JR, Wei Q, Liu FL, Deng QH, Beauchemin AM, Xiao WJ. Photocatalytic generation of N-centered hydrazonyl radicals: a strategy for hydroamination of β,γ-unsaturated hydrazones. Angew Chem Int Ed Engl 2015; 53:12163-7. [PMID: 25513705 DOI: 10.1002/anie.201406491] [Citation(s) in RCA: 250] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A visible-light photocatalytic generation of N-centered hydrazonyl radicals has been accomplished for the first time. This approach allows efficient intramolecular addition of hydrazonyl radical to terminal alkenes, thus providing hydroamination and oxyamination products in good yields. Importantly, the protocol involves deprotonation of an N-H bond and photocatalytic oxidation to an N-centered radical, thus obviating the need to prepare photolabile amine precursors or the stoichiometric use of oxidizing reagents.
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155
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Sun X, Li X, Song S, Zhu Y, Liang YF, Jiao N. Mn-Catalyzed Highly Efficient Aerobic Oxidative Hydroxyazidation of Olefins: A Direct Approach to β-Azido Alcohols. J Am Chem Soc 2015; 137:6059-66. [DOI: 10.1021/jacs.5b02347] [Citation(s) in RCA: 237] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Xiang Sun
- State
Key Laboratory of Natural and Biomimetic Drugs, Peking University, Xue
Yuan Rd. 38, Beijing 100191, China
| | - Xinyao Li
- State
Key Laboratory of Natural and Biomimetic Drugs, Peking University, Xue
Yuan Rd. 38, Beijing 100191, China
| | - Song Song
- State
Key Laboratory of Natural and Biomimetic Drugs, Peking University, Xue
Yuan Rd. 38, Beijing 100191, China
| | - Yuchao Zhu
- State
Key Laboratory of Natural and Biomimetic Drugs, Peking University, Xue
Yuan Rd. 38, Beijing 100191, China
| | - Yu-Feng Liang
- State
Key Laboratory of Natural and Biomimetic Drugs, Peking University, Xue
Yuan Rd. 38, Beijing 100191, China
| | - Ning Jiao
- State
Key Laboratory of Natural and Biomimetic Drugs, Peking University, Xue
Yuan Rd. 38, Beijing 100191, China
- State
Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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156
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Sehl T, Maugeri Z, Rother D. Multi-step synthesis strategies towards 1,2-amino alcohols with special emphasis on phenylpropanolamines. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2014.12.005] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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157
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Meng J, Gao M, Lv H, Zhang X. Highly Enantioselective Hydrogenation of ο-Alkoxy Tetrasubstituted Enamides Catalyzed by a Rh/(R,S)-JosiPhos Catalyst. Org Lett 2015; 17:1842-5. [DOI: 10.1021/acs.orglett.5b00401] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Jingjing Meng
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Min Gao
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Hui Lv
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Xumu Zhang
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
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158
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Orcel U, Waser J. Palladium-catalyzed vicinal amino alcohols synthesis from allyl amines by in situ tether formation and carboetherification. Angew Chem Int Ed Engl 2015; 54:5250-4. [PMID: 25720966 DOI: 10.1002/anie.201500636] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Indexed: 11/06/2022]
Abstract
Vicinal amino alcohols are important structural motifs of bioactive compounds. Reported herein is an efficient method for their synthesis based on the palladium-catalyzed oxy-alkynylation, oxy-arylation, or oxy-vinylation of allylic amines. High regio- and stereoselectivity were ensured through the in situ formation of a hemiaminal tether using the cheap commercially available trifluoroacetaldehyde in its hemiacetal form. The obtained compounds are important building blocks, which can be orthogonally deprotected to give either free alcohols, amines, or terminal alkynes.
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Affiliation(s)
- Ugo Orcel
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne (Switzerland) http://lcso.epfl.ch/
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159
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Orcel U, Waser J. Palladium-Catalyzed Vicinal Amino Alcohols Synthesis from Allyl Amines by In Situ Tether Formation and Carboetherification. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500636] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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160
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Kuszpit MR, Giletto MB, Jones CL, Bethel TK, Tepe JJ. Hydroxyamination of olefins using Br-N-(CO2Me)2. J Org Chem 2015; 80:1440-5. [PMID: 25574949 DOI: 10.1021/jo502369d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The hydroxyamination reagent Br-N-(CO2Me)2 underwent Markovnikov addition to various olefins in the presence of catalytic BF3·OEt2 and provides efficient access to aminoalcohols. The reaction provided the trans-1-bromo, 2-N-bis-carbamate adduct stereoisomer in all cases. The resulting adduct underwent cyclization to give an oxazolidinone, which could be readily hydrolyzed to an oxazolidin-2-one or an amino alcohol.
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Affiliation(s)
- Michael R Kuszpit
- Department of Chemistry, Michigan State University , East Lansing, Michigan 48824, United States
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161
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Mirabella S, Cardona F, Goti A. Osmium-Catalyzed Tethered Aminohydroxylation of Glycals: A Stereodirected Access to 2- and 3-Aminosugars. Org Lett 2015; 17:728-31. [DOI: 10.1021/ol503754f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stefania Mirabella
- Dipartimento di Chimica “Ugo
Schiff”, Università di Firenze, Via della Lastruccia 3-13, I-50019 Sesto Fiorentino (FI), Italy, associated with ICCOM-CNR, Firenze,
Italy
| | - Francesca Cardona
- Dipartimento di Chimica “Ugo
Schiff”, Università di Firenze, Via della Lastruccia 3-13, I-50019 Sesto Fiorentino (FI), Italy, associated with ICCOM-CNR, Firenze,
Italy
| | - Andrea Goti
- Dipartimento di Chimica “Ugo
Schiff”, Università di Firenze, Via della Lastruccia 3-13, I-50019 Sesto Fiorentino (FI), Italy, associated with ICCOM-CNR, Firenze,
Italy
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162
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Abstract
Nature is full of dimeric alkaloids of various types from many plant families, some of them with interesting biological properties. However, dimeric Cinchona alkaloids were not isolated from any species but were products of designed partial chemical synthesis. Although the Cinchona bark is amongst the sources of oldest efficient medicines, the synthetic dimers found most use in the field of asymmetric synthesis. Prominent examples include the Sharpless dihydroxylation and aminohydroxylation ligands, and dimeric phase transfer catalysts. In this article the syntheses of Cinchona alkaloid dimers and oligomers are reviewed, and their structure and applications are outlined. Various synthetic routes exploit reactivity of the alkaloids at the central 9-hydroxyl group, quinuclidine, and quinoline rings, as well as 3-vinyl group. This availability of reactive sites, in combination with a plethora of linker molecules, contributes to the diversity of the products obtained.
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Affiliation(s)
- Przemysław J Boratyński
- Department of Organic Chemistry, Wrocław University of Technology, Wyspiańskiego 27, 50-370, Wrocław, Poland,
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163
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Liu GQ, Li L, Duan L, Li YM. mCPBA-mediated metal-free intramolecular aminohydroxylation and dioxygenation of unfunctionalized olefins. RSC Adv 2015. [DOI: 10.1039/c5ra09024e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
We report a mild and metal-free process to prepare a variety of 2-hydroxymethylpyrrolidine and oxolanimine compounds.
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Affiliation(s)
- Gong-Qing Liu
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300071
- People’s Republic of China
| | - Lin Li
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300071
- People’s Republic of China
| | - Lili Duan
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300071
- People’s Republic of China
| | - Yue-Ming Li
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research
- Nankai University
- Tianjin 300071
- People’s Republic of China
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164
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Prasad PK, Reddi RN, Sudalai A. Oxidant controlled regio- and stereodivergent azidohydroxylation of alkenes via I2 catalysis. Chem Commun (Camb) 2015; 51:10276-9. [DOI: 10.1039/c5cc02374b] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A novel, I2 catalyzed regio- and stereodivergent vicinal azidohydroxylation of alkenes leading to 1,2-azidoalcohols in high yields (up to 92%) and excellent dr (up to 98%) has been developed.
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Affiliation(s)
- P. K. Prasad
- Chemical Engineering and Process Development Division
- CSIR-National Chemical Laboratory
- Pune
- India
| | - R. N. Reddi
- Chemical Engineering and Process Development Division
- CSIR-National Chemical Laboratory
- Pune
- India
| | - A. Sudalai
- Chemical Engineering and Process Development Division
- CSIR-National Chemical Laboratory
- Pune
- India
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165
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Hu XQ, Feng G, Chen JR, Yan DM, Zhao QQ, Wei Q, Xiao WJ. PhI(OAc)2-mediated functionalisation of unactivated alkenes for the synthesis of pyrazoline and isoxazoline derivatives. Org Biomol Chem 2015; 13:3457-61. [DOI: 10.1039/c5ob00029g] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A PhI(OAc)2-promoted radical cyclization of β,γ-unsaturated hydrazones and oximes has been developed for an efficient synthesis of pyrazolines and isoxazolines.
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Affiliation(s)
- Xiao-Qiang Hu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan
| | - Guoqiang Feng
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan
| | - Jia-Rong Chen
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan
| | - Dong-Mei Yan
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan
| | - Quan-Qing Zhao
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan
| | - Qiang Wei
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan
| | - Wen-Jing Xiao
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan
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166
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Foley DJ, Doveston RG, Churcher I, Nelson A, Marsden SP. A systematic approach to diverse, lead-like scaffolds from α,α-disubstituted amino acids. Chem Commun (Camb) 2015; 51:11174-7. [DOI: 10.1039/c5cc03002a] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A strategy for the efficient lead-oriented synthesis of novel molecular scaffolds is demonstrated. Twenty two scaffolds were prepared from four quaternary α-amino acid building blocks in only 49 synthetic operations, using six connective reactions. The ability of each scaffold to specifically target leadlike chemical space was demonstrated computationally.
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Affiliation(s)
| | | | - Ian Churcher
- GlaxoSmithKline Medicines Research Centre
- Stevenage
- UK
| | - Adam Nelson
- School of Chemistry
- University of Leeds
- Leeds
- UK
- Astbury Centre for Structural Molecular Biology
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167
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Kanizaj N, McLeod MD. Diastereoselective osmium-catalyzed vicinal oxyamination of acyclic allylic alcohol derivatives. Chirality 2014; 26:724-33. [PMID: 25513679 DOI: 10.1002/chir.22256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The osmium-catalyzed oxyamination of chiral acyclic allylic alcohol derivatives bearing mono- and 1,1-di-substituted double bonds with benzyl N-(4-tosyloxy)carbamate proceeds with high regioselectivity and moderate levels of diastereoselectivity favoring the anti product. The observed stereoselectivity shows a clear and systematic trend with anti:syn ratios increasing in line with the size of substituent at both the allylic stereocenter and double bond α-carbon. The stereoinduction is in accord with the sense of diastereoselectivity predicted by Kishi's empirical rule and a previously reported transition state model for the osmium-catalyzed dihydroxylation of allylic alcohol derivatives. In contrast, allylic alcohol derivatives bearing trisubstituted double bonds show low or no reactivity in the oxyamination reaction affording the syn product in low yield in the cases examined.
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168
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Chen H, Kaga A, Chiba S. Diastereoselective Aminooxygenation and Diamination of Alkenes with Amidines by Hypervalent Iodine(III) Reagents. Org Lett 2014; 16:6136-9. [DOI: 10.1021/ol503000c] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Hui Chen
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Atsushi Kaga
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Shunsuke Chiba
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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169
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Chumnanvej N, Samakkanad N, Pohmakotr M, Reutrakul V, Jaipetch T, Soorukram D, Kuhakarn C. Convenient synthesis of α-nitrooximes mediated by OXONE®. RSC Adv 2014. [DOI: 10.1039/c4ra11703d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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170
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Hu XQ, Chen JR, Wei Q, Liu FL, Deng QH, Beauchemin AM, Xiao WJ. Photocatalytic Generation of N-Centered Hydrazonyl Radicals: A Strategy for Hydroamination of β,γ-Unsaturated Hydrazones. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406491] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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171
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Xu F, Zhu L, Zhu S, Yan X, Xu HC. Electrochemical intramolecular aminooxygenation of unactivated alkenes. Chemistry 2014; 20:12740-4. [PMID: 25145684 DOI: 10.1002/chem.201404078] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Indexed: 12/18/2022]
Abstract
An electrochemical approach to the intramolecular aminooxygenation of unactivated alkenes has been developed. This process is based on the addition of nitrogen-centered radicals, generated through electrochemical oxidation, to alkenes followed by trapping of the cyclized radical intermediate with 2,2,6,6-tetramethylpiperidine-N-oxyl radical (TEMPO). Difunctionalization of a variety of alkenes with easily available carbamates/amides and TEMPO affords aminooxygenation products in high yields and with excellent trans selectivity for cyclic systems (d.r. up to>20:1). The approach provides a much-needed complementary route to existing cis-selective methods.
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Affiliation(s)
- Fan Xu
- The Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005 (China) http://chem.xmu.edu.cn/kydw_ktz/hcxu/index.html
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172
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Yin Y, Zhou H, Sun G, Liu X. m-CPBA-Mediated IntramolecularAminohydroxylation ofN-Sulfonyl Aminoalkenes to Synthesize β-Hydroxyl Cyclic Amines. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.2169] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yan Yin
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; 100 Hai Quan Rd. Shanghai 201418 People's Republic of China
- Key Laboratory of Synthetic Chemistry of Natural Substances; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; 345 Ling Ling Rd. Shanghai 200032 People's Republic of China
| | - Hong Zhou
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; 100 Hai Quan Rd. Shanghai 201418 People's Republic of China
| | - Guofeng Sun
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; 100 Hai Quan Rd. Shanghai 201418 People's Republic of China
| | - Xichen Liu
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; 100 Hai Quan Rd. Shanghai 201418 People's Republic of China
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173
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Dequirez G, Ciesielski J, Retailleau P, Dauban P. Catalytic Intermolecular Alkene Oxyamination with Nitrenes. Chemistry 2014; 20:8929-33. [PMID: 24939636 DOI: 10.1002/chem.201400301] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Indexed: 12/15/2022]
Affiliation(s)
- Geoffroy Dequirez
- Centre de Recherche de Gif-sur-Yvette, Institut de Chimie des Substances Naturelles, UPR 2301 CNRS, Avenue de la Terrasse, 91198 Gif-sur-Yvette (France)
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174
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Pan Z, Pound SM, Rondla NR, Douglas CJ. Intramolecular aminocyanation of alkenes by N-CN bond cleavage. Angew Chem Int Ed Engl 2014; 53:5170-4. [PMID: 24719371 PMCID: PMC4077192 DOI: 10.1002/anie.201310983] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 02/06/2014] [Indexed: 11/06/2022]
Abstract
A metal-free, Lewis acid promoted intramolecular aminocyanation of alkenes was developed. B(C6F5)3 activates N-sulfonyl cyanamides, thus leading to a formal cleavage of the N-CN bonds in conjunction with vicinal addition of sulfonamide and nitrile groups across an alkene. This method enables atom-economical access to indolines and tetrahydroquinolines in excellent yields, and provides a complementary strategy for regioselective alkene difunctionalizations with sulfonamide and nitrile groups. Labeling experiments with (13)C suggest a fully intramolecular cyclization pattern due to the lack of label scrambling in double crossover experiments. Catalysis with Lewis acid is realized and the reaction can be conducted under air.
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Affiliation(s)
- Zhongda Pan
- Department of Chemistry, University of Minnesota – Twin Cities, 207 Pleasant St. SE, Minneapolis, MN 55455 (USA)
| | - Sarah M. Pound
- Department of Chemistry, University of Minnesota – Twin Cities, 207 Pleasant St. SE, Minneapolis, MN 55455 (USA)
| | - Naveen R. Rondla
- Department of Chemistry, University of Minnesota – Twin Cities, 207 Pleasant St. SE, Minneapolis, MN 55455 (USA)
| | - Christopher J. Douglas
- Department of Chemistry, University of Minnesota – Twin Cities, 207 Pleasant St. SE, Minneapolis, MN 55455 (USA)
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175
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Pan Z, Pound SM, Rondla NR, Douglas CJ. Intramolecular Aminocyanation of Alkenes by NCN Bond Cleavage. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310983] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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176
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Romero RM, Wöste TH, Muñiz K. Vicinal difunctionalization of alkenes with iodine(III) reagents and catalysts. Chem Asian J 2014; 9:972-83. [PMID: 24591421 DOI: 10.1002/asia.201301637] [Citation(s) in RCA: 243] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Indexed: 12/15/2022]
Abstract
Hypervalent iodine(III) reagents have been known for over a century, and their reaction profile is still actively investigated. Recent years have seen impressive improvements in the area of alkene difunctionalization reactions, where new methodologies have become available. Especially chiral non-racemic hypervalent iodine(III) reagents and catalysts have emerged as versatile tools for the realization of important enantioselective transformations.
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Affiliation(s)
- R Martín Romero
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, E-43007 Tarragona (Spain), Fax: (+34) 977-920-224
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177
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Adams CS, Grigg RD, Schomaker JM. Complete stereodivergence in the synthesis of 2-amino-1,3-diols from allenes. Chem Sci 2014. [DOI: 10.1039/c4sc01214c] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Herein, we describe studies to understand how both reagent and substrate control can be effectively employed in the stereodivergent oxidative amination of allenes, with transfer of the axial chirality of an enantioenriched precursor to point chirality in each possible diastereomeric 2-amino-1,3-diol product.
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Affiliation(s)
| | - R. David Grigg
- Department of Chemistry
- University of Wisconsin
- Madison, USA
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178
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Balaji PV, Chandrasekaran S. Stereoselective geminal difunctionalization of vinyl arenes mediated by the bromonium ion. Chem Commun (Camb) 2014; 50:70-2. [DOI: 10.1039/c3cc46003g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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179
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Unsworth WP, Clark N, Ronson TO, Stevens K, Thompson AL, Lamont SG, Robertson J. Rhodium(ii)-catalysed tandem aziridination and ring-opening: stereoselective synthesis of functionalised tetrahydrofurans. Chem Commun (Camb) 2014; 50:11393-6. [DOI: 10.1039/c4cc05159a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Rh(ii) mediated tandem aziridination and cycloetherification achieves a direct, stereoselective synthesis of the 2-(1-amino-2-hydroxyethyl)tetrahydrofuran motif.
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Affiliation(s)
- William P. Unsworth
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford, UK
| | - Nicola Clark
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford, UK
| | - Thomas O. Ronson
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford, UK
| | - Kiri Stevens
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford, UK
| | - Amber L. Thompson
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford, UK
| | | | - Jeremy Robertson
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford, UK
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180
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Manick AD, Duret G, Tran DN, Berhal F, Prestat G. Synthesis of 1,4-benzodiazepinones and 1,4-benzoxazepinones via palladium-catalyzed amino and oxyacetoxylation. Org Chem Front 2014. [DOI: 10.1039/c4qo00179f] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Palladium-catalyzed amino and oxyacetoxylation have been developed to furnish 1,4-benzodiazepinones and 1,4-benzoxazepinones through the diheterofunctionalization of alkenes.
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Affiliation(s)
- A. D. Manick
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques
- UMR CNRS 8601
- Université Paris Descartes
- 75006 Paris, France
| | - G. Duret
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques
- UMR CNRS 8601
- Université Paris Descartes
- 75006 Paris, France
| | - D. N. Tran
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques
- UMR CNRS 8601
- Université Paris Descartes
- 75006 Paris, France
| | - F. Berhal
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques
- UMR CNRS 8601
- Université Paris Descartes
- 75006 Paris, France
| | - G. Prestat
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques
- UMR CNRS 8601
- Université Paris Descartes
- 75006 Paris, France
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181
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Liang X, Li N, Chen X, Su W. Asymmetric α-oxyamination of aldehydes by synergistic catalysis of imidazolethiones and metal salts. RSC Adv 2014. [DOI: 10.1039/c4ra08556f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The novel and efficient imidazolethione catalysts combined with metal salts were successfully introduced to the asymmetric α-oxyamination of aldehydes.
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Affiliation(s)
- Xianrui Liang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014, China
| | - Na Li
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014, China
| | - Xinlei Chen
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014, China
| | - Weike Su
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014, China
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182
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Bromamine-T as an efficient amine source for Sharpless asymmetric aminohydroxylation of olefins. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2013.12.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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183
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Buesking AW, Ellman JA. Convergent, asymmetric synthesis of vicinal amino alcohols via Rh-catalyzed addition of α-amido trifluoroborates to carbonyls. Chem Sci 2014. [DOI: 10.1039/c4sc00084f] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The convergent, asymmetric synthesis of vicinal amino alcohols is achieved by the Rh-catalyzed addition of α-amido trifluoroborates to carbonyl compounds.
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184
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Kim JA, Seo YJ, Kang S, Han J, Lee HK. Stereoselective synthesis of 4-substituted-cyclic sulfamidate-5-carboxylates by asymmetric transfer hydrogenation accompanied by dynamic kinetic resolution and applications to concise stereoselective syntheses of (−)-epi-cytoxazone and the taxotere side-chain. Chem Commun (Camb) 2014; 50:13706-9. [DOI: 10.1039/c4cc06395c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DKR driven, asymmetric transfer hydrogenations of cyclic sulfamidate imine-5-carboxylates were developed.
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Affiliation(s)
- Jin-ah Kim
- Korea Chemical Bank
- Korea Research Institute of Chemical Technology
- Daejeon 305-600, Korea
| | - Yeon Ji Seo
- Korea Chemical Bank
- Korea Research Institute of Chemical Technology
- Daejeon 305-600, Korea
- Department of Medicinal and Pharmaceutical Chemistry
- University of Science and Technology
| | - Soyeong Kang
- Korea Chemical Bank
- Korea Research Institute of Chemical Technology
- Daejeon 305-600, Korea
- Department of Medicinal and Pharmaceutical Chemistry
- University of Science and Technology
| | - Juae Han
- Korea Chemical Bank
- Korea Research Institute of Chemical Technology
- Daejeon 305-600, Korea
- Department of Medicinal and Pharmaceutical Chemistry
- University of Science and Technology
| | - Hyeon-Kyu Lee
- Korea Chemical Bank
- Korea Research Institute of Chemical Technology
- Daejeon 305-600, Korea
- Department of Medicinal and Pharmaceutical Chemistry
- University of Science and Technology
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185
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Weinstein AB, Schuman DP, Tan ZX, Stahl SS. Synthesis of vicinal aminoalcohols by stereoselective aza-Wacker cyclizations: access to (-)-acosamine by redox relay. Angew Chem Int Ed Engl 2013; 52:11867-70. [PMID: 24105928 PMCID: PMC3943752 DOI: 10.1002/anie.201305926] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Indexed: 11/11/2022]
Abstract
Diastereoselective aza-Wacker cyclization of O-allyl hemiaminals under aerobic conditions enables efficient access to 1,2-aminoalcohol derivatives from allylic alcohols. The scope of this method is presented and its utility is highlighted in a streamlined synthesis of the biologically important aminosugar (–)-acosamine.
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Affiliation(s)
- Adam B. Weinstein
- Department of Chemistry University of Wisconsin-Madison 1101 University Avenue, Madison, WI 53706 (USA)
| | - David P. Schuman
- Department of Chemistry University of Wisconsin-Madison 1101 University Avenue, Madison, WI 53706 (USA)
| | - Zhi Xu Tan
- Department of Chemistry University of Wisconsin-Madison 1101 University Avenue, Madison, WI 53706 (USA)
| | - Shannon S. Stahl
- Department of Chemistry University of Wisconsin-Madison 1101 University Avenue, Madison, WI 53706 (USA)
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186
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Pullin RDC, Rathi AH, Melikhova EY, Winter C, Thompson AL, Donohoe TJ. Tethered aminohydroxylation: synthesis of the β-amino acid of microsclerodermins A and B. Org Lett 2013; 15:5492-5. [PMID: 24131375 PMCID: PMC4005371 DOI: 10.1021/ol402638n] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The utility of the tethered aminohydroxylation (TA) has been demonstrated by synthesis of the complex β-amino acid residue of microsclerodermins A and B. The TA provided a regio- and stereoselective functionalization of a complex homoallylic alcohol. The route includes late-stage introduction of the aliphatic side chain via a cuprate addition and cross metathesis, a tactic designed to render the synthesis applicable to other microsclerodermins.
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Affiliation(s)
- Robert D C Pullin
- Department of Chemistry, University of Oxford , Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, U.K
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187
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188
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Weinstein AB, Schuman DP, Tan ZX, Stahl SS. Synthesis of Vicinal Aminoalcohols by Stereoselective Aza-Wacker Cyclizations: Access to (−)-Acosamine by Redox Relay. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201305926] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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189
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Zhang YQ, Yuan YA, Liu GS, Xu H. Iron(II)-Catalyzed Asymmetric Intramolecular Aminohydroxylation of Indoles. Org Lett 2013; 15:3910-3. [DOI: 10.1021/ol401666e] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Yong-Qiang Zhang
- Department of Chemistry, Georgia State University, 100 Piedmont Avenue SE, Atlanta, Georgia 30303, United States
| | - Yong-An Yuan
- Department of Chemistry, Georgia State University, 100 Piedmont Avenue SE, Atlanta, Georgia 30303, United States
| | - Guan-Sai Liu
- Department of Chemistry, Georgia State University, 100 Piedmont Avenue SE, Atlanta, Georgia 30303, United States
| | - Hao Xu
- Department of Chemistry, Georgia State University, 100 Piedmont Avenue SE, Atlanta, Georgia 30303, United States
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190
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Pellarin KR, Puddephatt RJ. Oxidation of a Dimethylplatinum(II) Complex with Oxaziridines: A Hemiaminal Intermediate but No Oxo Complex. Organometallics 2013. [DOI: 10.1021/om400079b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Kyle R. Pellarin
- Department of Chemistry, University of Western Ontario, London, Canada N6A 5B7
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191
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Murakami T. Synthesis of all four stereoisomers of 5-formyl-4-hydroxymethyl-1,3-oxazolidin-2-ones from d-glucosamine. Carbohydr Res 2013; 375:47-54. [DOI: 10.1016/j.carres.2013.04.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Revised: 04/16/2013] [Accepted: 04/17/2013] [Indexed: 12/01/2022]
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192
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Weatherly CD, Guzei IA, Schomaker JM. Stereocontrolled Synthesis of 1,3-Diamino-2-ols by Aminohydroxylation of Bicyclic Methylene-Aziridines. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300416] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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193
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Liu GS, Zhang YQ, Yuan YA, Xu H. Iron(II)-Catalyzed Intramolecular Aminohydroxylation of Olefins with Functionalized Hydroxylamines. J Am Chem Soc 2013; 135:3343-6. [DOI: 10.1021/ja311923z] [Citation(s) in RCA: 130] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Guan-Sai Liu
- Department
of Chemistry, Georgia State University, 100 Piedmont Avenue SE, Atlanta, Georgia
30303, United States
| | - Yong-Qiang Zhang
- Department
of Chemistry, Georgia State University, 100 Piedmont Avenue SE, Atlanta, Georgia
30303, United States
| | - Yong-An Yuan
- Department
of Chemistry, Georgia State University, 100 Piedmont Avenue SE, Atlanta, Georgia
30303, United States
| | - Hao Xu
- Department
of Chemistry, Georgia State University, 100 Piedmont Avenue SE, Atlanta, Georgia
30303, United States
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194
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Bredihhina J, Villo P, Andersons K, Toom L, Vares L. Hydrolytic and Aminolytic Kinetic Resolution of Terminal Bis-Epoxides. J Org Chem 2013; 78:2379-85. [DOI: 10.1021/jo3024335] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jevgenia Bredihhina
- Institute of Technology, University of Tartu, Nooruse 1, 50411,
Tartu, Estonia
| | - Piret Villo
- Institute of Technology, University of Tartu, Nooruse 1, 50411,
Tartu, Estonia
| | - Ka̅rlis Andersons
- Institute of Technology, University of Tartu, Nooruse 1, 50411,
Tartu, Estonia
| | - Lauri Toom
- Institute of Technology, University of Tartu, Nooruse 1, 50411,
Tartu, Estonia
| | - Lauri Vares
- Institute of Technology, University of Tartu, Nooruse 1, 50411,
Tartu, Estonia
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195
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Paderes MC, Keister JB, Chemler SR. Mechanistic analysis and optimization of the copper-catalyzed enantioselective intramolecular alkene aminooxygenation. J Org Chem 2013; 78:506-15. [PMID: 23244027 PMCID: PMC3697020 DOI: 10.1021/jo3023632] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The catalytic asymmetric aminooxygenation of alkenes provides an efficient and straightforward approach to prepare chiral vicinal amino alcohols. We have reported a copper(II)-catalyzed enantioselective intramolecular alkene aminooxygenation, using (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO) as the oxygen source, which results in the synthesis of chiral indolines and pyrrolidines. Herein we disclose that kinetics studies indicate the reaction is first order both in substrate and the [Cu(R,R)-Ph-bis(oxazoline)]OTf(2) catalyst and zero order in TEMPO. Furthermore, kinetic isotope effect studies support that the cis-aminocupration step, the addition of N-Cu across the alkene, is the rate-limiting step. Subsequent formation of a carbon radical intermediate and direct carbon radical trapping with TEMPO is the indicated mechanism for the C-O bond formation as suggested by a deuterium labeling experiment. A ligand screen revealed that C(4)-phenyl substitution on the bis(oxazoline) is optimal for high asymmetric induction. The size of the substrate's N-sulfonyl group also influences the enantioselectivity of the reaction. The preparative-scale catalytic aminooxygenation reaction (gram scale) was demonstrated, and an unexpected dependence on reaction temperature was uncovered on the larger scale reaction.
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Affiliation(s)
| | | | - Sherry R. Chemler
- University at Buffalo, The State University of New York, Buffalo, New York 14260, USA
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196
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Amore A, Wals K, Koekoek E, Hoppes R, Toebes M, Schumacher TNM, Rodenko B, Ovaa H. Development of a hypersensitive periodate-cleavable amino acid that is methionine- and disulfide-compatible and its application in MHC exchange reagents for T cell characterisation. Chembiochem 2013; 14:123-31. [PMID: 23280887 PMCID: PMC3561698 DOI: 10.1002/cbic.201200540] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Indexed: 12/02/2022]
Abstract
Incorporation of cleavable linkers into peptides and proteins is of particular value in the study of biological processes. Here we describe the synthesis of a cleavable linker that is hypersensitive to oxidative cleavage as the result of the periodate reactivity of a vicinal amino alcohol moiety. Two strategies directed towards the synthesis of a building block suitable for solid-phase peptide synthesis were developed: a chemoenzymatic route, involving L-threonine aldolase, and an enantioselective chemical route; these led to α,γ-diamino-β-hydroxybutanoic acids in diastereoisomerically mixed and enantiopure forms, respectively. Incorporation of the 1,2-amino alcohol linker into the backbone of a peptide generated a conditional peptide that was rapidly cleaved at very low concentrations of sodium periodate. This cleavable peptide ligand was applied in the generation of MHC exchange reagents for the detection of antigen-specific T cells in peripheral blood cells. The extremely low concentration of periodate required to trigger MHC peptide exchange allowed the co-oxidation of methionine and disulfide residues to be avoided. Conditional MHC reagents hypersensitive to periodate can now be applied without limitations when UV irradiation is undesired or less practical.
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Affiliation(s)
- Alessia Amore
- Division of Cell Biology, The Netherlands Cancer InstitutePlesmanlaan 121, 1066 CX Amsterdam (the Netherlands) E-mail:
| | - Kim Wals
- Division of Cell Biology, The Netherlands Cancer InstitutePlesmanlaan 121, 1066 CX Amsterdam (the Netherlands) E-mail:
| | - Evelyn Koekoek
- Division of Cell Biology, The Netherlands Cancer InstitutePlesmanlaan 121, 1066 CX Amsterdam (the Netherlands) E-mail:
| | - Rieuwert Hoppes
- Division of Cell Biology, The Netherlands Cancer InstitutePlesmanlaan 121, 1066 CX Amsterdam (the Netherlands) E-mail:
| | - Mireille Toebes
- Division of Immunology, The Netherlands Cancer InstitutePlesmanlaan 121, 1066 CX Amsterdam (the Netherlands)
| | - Ton N M Schumacher
- Division of Immunology, The Netherlands Cancer InstitutePlesmanlaan 121, 1066 CX Amsterdam (the Netherlands)
| | - Boris Rodenko
- Division of Cell Biology, The Netherlands Cancer InstitutePlesmanlaan 121, 1066 CX Amsterdam (the Netherlands) E-mail:
| | - Huib Ovaa
- Division of Cell Biology, The Netherlands Cancer InstitutePlesmanlaan 121, 1066 CX Amsterdam (the Netherlands) E-mail:
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197
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Synthesis of Saturated Heterocycles via Metal-Catalyzed Alkene Diamination, Aminoalkoxylation, or Dialkoxylation Reactions. TOPICS IN HETEROCYCLIC CHEMISTRY 2013. [DOI: 10.1007/7081_2013_104] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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198
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Quinn RK, Schmidt VA, Alexanian EJ. Radical carbooxygenations of alkenes using hydroxamic acids. Chem Sci 2013. [DOI: 10.1039/c3sc51466h] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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199
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Moriyama K, Izumisawa Y, Togo H. Brønsted Acid-assisted Intramolecular Aminohydroxylation of N-Alkenylsulfonamides under Heavy Metal-free Conditions. J Org Chem 2012; 77:9846-51. [DOI: 10.1021/jo301523a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Katsuhiko Moriyama
- Department
of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522,
Japan
| | - Yuta Izumisawa
- Department
of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522,
Japan
| | - Hideo Togo
- Department
of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522,
Japan
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200
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Sanjaya S, Chiba S. Copper-Catalyzed Aminooxygenation of N-Allylamidines with PhI(OAc)2. Org Lett 2012; 14:5342-5. [DOI: 10.1021/ol302525m] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Stephen Sanjaya
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Shunsuke Chiba
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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