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Ravindra S, Irfana Jesin CP, Shabashini A, Nandi GC. Recent Advances in the Preparations and Synthetic Applications of Oxaziridines and Diaziridines. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001372] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Sundaresan Ravindra
- Department of Chemistry National Institute of Technology Tiruchirappalli 620015, Tamilnadu India
| | - C. P. Irfana Jesin
- Department of Chemistry National Institute of Technology Tiruchirappalli 620015, Tamilnadu India
| | - Arivalagan Shabashini
- Department of Chemistry National Institute of Technology Tiruchirappalli 620015, Tamilnadu India
| | - Ganesh Chandra Nandi
- Department of Chemistry National Institute of Technology Tiruchirappalli 620015, Tamilnadu India
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2
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3
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Zhang LW, Wang L, Ji N, Dai SY, He W. Asymmetric epoxidation of α,β-unsaturated ketones via an amine-thiourea dual activation catalysis. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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4
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Llopis N, Gisbert P, Baeza A. Direct Synthesis of N,N-Disubstituted Formamides by Oxidation of Imines Using an HFIP/UHP System. J Org Chem 2020; 85:11072-11079. [PMID: 32786613 DOI: 10.1021/acs.joc.0c01579] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The straightforward synthesis of N,N-disubstituted formamides using a combination of 1,1,1,3,3,3-hexafluoroispropanol (HFIP) and H2O2 is described. The unique features of HFIP allowed the utilization of a green oxidant such as H2O2, and the products, arising from an oxidation-rearrangement sequence, were obtained in good to high yields under smooth reaction conditions.
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Affiliation(s)
- Natalia Llopis
- Departamento de Quı́mica Orgánica and Instituto de Sı́ntesis Orgánica (ISO), Facultad de Ciencias, Universidad de Alicante. Apdo. 99, E-03080 Alicante, Spain
| | - Patricia Gisbert
- Departamento de Quı́mica Orgánica and Instituto de Sı́ntesis Orgánica (ISO), Facultad de Ciencias, Universidad de Alicante. Apdo. 99, E-03080 Alicante, Spain
| | - Alejandro Baeza
- Departamento de Quı́mica Orgánica and Instituto de Sı́ntesis Orgánica (ISO), Facultad de Ciencias, Universidad de Alicante. Apdo. 99, E-03080 Alicante, Spain
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5
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Ma J, Kass SR. Electrostatically Enhanced Phosphoric Acids and Their Applications in Asymmetric Friedel-Crafts Alkylations. J Org Chem 2019; 84:11125-11134. [PMID: 31386810 DOI: 10.1021/acs.joc.9b01741] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A series of electrostatically enhanced phosphoric acid catalysts were synthesized and studied. These compounds possess two positively charged N-octylpyridinium or triarylphosphonium ion centers at the 3,3'-positions of the (R)-BINOL backbone to enhance reactivity and provide needed steric bulk for enantioselective transformations. Catalytic activities for Friedel-Crafts alkylations of indoles with trans-β-nitrostyrenes were studied. Both types of catalysts accelerate reaction conversions relative to noncharged analogues, and good enantioselectivities up to 90% ee are observed with the phosphonium-ion-tagged phosphoric acids. This transformation also can be scaled up to synthetically useful amounts, affording >250 mg of product without losing any reactivity or selectivity.
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Affiliation(s)
- Jie Ma
- Department of Chemistry , University of Minnesota , 207 Pleasant Street, SE , Minneapolis , Minnesota 55455 , United States
| | - Steven R Kass
- Department of Chemistry , University of Minnesota , 207 Pleasant Street, SE , Minneapolis , Minnesota 55455 , United States
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6
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Boratyński PJ, Zielińska-Błajet M, Skarżewski J. Cinchona Alkaloids-Derivatives and Applications. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2019; 82:29-145. [PMID: 30850032 DOI: 10.1016/bs.alkal.2018.11.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Major Cinchona alkaloids quinine, quinidine, cinchonine, and cinchonidine are available chiral natural compounds (chiral pool). Unlike many other natural products, these alkaloids are available in multiple diastereomeric forms which are separated on an industrial scale. The introduction discusses in short conformational equilibria, traditional separation scheme, biosynthesis, and de novo chemical syntheses. The second section concerns useful chemical applications of the alkaloids as chiral recognition agents and effective chiral catalysts. Besides the Sharpless ethers and quaternary ammonium salts (chiral PTC), the most successful bifunctional organocatalysts are based on 9-amino derivatives: thioureas and squaramides. The third section reports the main transformations of Cinchona alkaloids. This covers reactions of the 9-hydroxyl group with the retention or inversion of configuration. Specific Cinchona rearrangements enlarging [2.2.2]bicycle of quinuclidine to [3.2.2] products are connected to the 9-OH substitution. The syntheses of numerous esterification and etherification products are described, including many examples of bi-Cinchona alkaloid ethers. Further derivatives comprise 9-N-substituted compounds. The amino group is introduced via an azido function with the inversion of configuration at the stereogenic center C9. The 9-epi-amino-alkaloids provide imines, amides, imides, thioureas, and squaramides. The syntheses of 9-carbon-, 9-sulfur-, and 9-selenium-substituted derivatives are discussed. Oxidation of the hydroxyl group of any alkaloid gives ketones, which can be selectively reduced, reacted with Grignard reagents, or subjected to the Corey-Chaykovsky reaction. The alkaloids were also partially degraded by splitting C4'-C9 or N1-C8 bonds. In order to immobilize Cinchona alkaloids the transformations of the 3-vinyl group were often exploited. Finally, miscellaneous functionalizations of quinuclidine, quinoline, and examples of various metal complexes of the alkaloids are considered.
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Affiliation(s)
| | | | - Jacek Skarżewski
- Department of Organic Chemistry, Wrocław University of Technology, Wrocław, Poland.
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7
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Davis FA. Recent applications of N-sulfonyloxaziridines (Davis oxaziridines) in organic synthesis. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.02.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Liu M, Ji N, Wang L, Liu P, He W. d-Mannitol-derived novel chiral thioureas: Synthesis and application in asymmetric Henry reactions. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.01.082] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Liu Y, Wang J, Wei Z, Cao J, Liang D, Lin Y, Duan H. Diastereo- and enantioselective nitro-Mannich reaction of isatin-derived N-Boc ketimines catalyzed by chiral phase-transfer catalysts. NEW J CHEM 2018. [DOI: 10.1039/c7nj04527a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A series of 3-substituted 3-amino-oxindoles were constructed in excellent yields (96–99%) with high enantioselectivities (up to 95% ee) and diastereoselectivities (up to 95 : 5 dr) catalyzed by Cinchona alkaloid-derived phase-transfer catalysts.
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Affiliation(s)
- Yuxin Liu
- Department of Organic Chemistry, College of Chemistry, Jilin University
- Changchun 130012
- China
| | - Jingdong Wang
- Department of Organic Chemistry, College of Chemistry, Jilin University
- Changchun 130012
- China
| | - Zhonglin Wei
- Department of Organic Chemistry, College of Chemistry, Jilin University
- Changchun 130012
- China
| | - Jungang Cao
- Department of Organic Chemistry, College of Chemistry, Jilin University
- Changchun 130012
- China
| | - Dapeng Liang
- Department of Organic Chemistry, College of Chemistry, Jilin University
- Changchun 130012
- China
| | - Yingjie Lin
- Department of Organic Chemistry, College of Chemistry, Jilin University
- Changchun 130012
- China
| | - Haifeng Duan
- Department of Organic Chemistry, College of Chemistry, Jilin University
- Changchun 130012
- China
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10
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Kirihara M, Okada T, Sugiyama Y, Akiyoshi M, Matsunaga T, Kimura Y. Sodium Hypochlorite Pentahydrate Crystals (NaOCl·5H2O): A Convenient and Environmentally Benign Oxidant for Organic Synthesis. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.7b00288] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Masayuki Kirihara
- Department
of Materials and Life Science, Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka 437-8555, Japan
| | - Tomohide Okada
- R&D Department of Chemicals, Nippon Light Metal Company, Ltd., 480 Kambara, Shimizu-ku, Shizuoka 421-3203, Japan
| | - Yukihiro Sugiyama
- R&D Department of Chemicals, Nippon Light Metal Company, Ltd., 480 Kambara, Shimizu-ku, Shizuoka 421-3203, Japan
| | - Miyako Akiyoshi
- Research
Center for Explosion Safety, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba-shi, Ibaraki 305-8565, Japan
| | - Takehiro Matsunaga
- Research
Center for Explosion Safety, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba-shi, Ibaraki 305-8565, Japan
| | - Yoshikazu Kimura
- Research
and Development Department, Iharanikkei Chemical Industry Co. Ltd., 5700-1 Kambara, Shimizu-ku, Shizuoka 421-3203, Japan
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11
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Singjunla Y, Pigeaux M, Laporte R, Baudoux J, Rouden J. Thioamide-Substituted Cinchona Alkaloids as Efficient Organocatalysts for Asymmetric Decarboxylative Reactions of MAHOs. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700870] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yuttapong Singjunla
- LCMT, ENSICAEN, UNICAEN, CNRS; Normandie Univ.; 6 Boulevard du Maréchal Juin 14000 Caen France
| | - Morgane Pigeaux
- LCMT, ENSICAEN, UNICAEN, CNRS; Normandie Univ.; 6 Boulevard du Maréchal Juin 14000 Caen France
| | - Romain Laporte
- LCMT, ENSICAEN, UNICAEN, CNRS; Normandie Univ.; 6 Boulevard du Maréchal Juin 14000 Caen France
| | - Jérôme Baudoux
- LCMT, ENSICAEN, UNICAEN, CNRS; Normandie Univ.; 6 Boulevard du Maréchal Juin 14000 Caen France
| | - Jacques Rouden
- LCMT, ENSICAEN, UNICAEN, CNRS; Normandie Univ.; 6 Boulevard du Maréchal Juin 14000 Caen France
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12
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Liu Y, Liu Y, Wang J, Wei Z, Cao J, Liang D, Lin Y, Duan H. Asymmetric phase-transfer catalysts bearing multiple hydrogen-bonding donors: Synthesis and application in nitro-Mannich reaction of isatin-derived N-Boc ketimines. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.05.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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13
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Liu Y, Wei Z, Liu Y, Cao J, Liang D, Lin Y, Duan H. Novel α-amino acid-derived phase-transfer catalyst application to a highly enantio- and diastereoselective nitro-Mannich reaction. Org Biomol Chem 2017; 15:9234-9242. [DOI: 10.1039/c7ob02501g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Very broad substrate generality was observed, and the products were achieved in high enantio-/diastereoselectivities (90–>99.9% ee, 9 : 1 to 11 : 1 dr).
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Affiliation(s)
- Yuxin Liu
- Department of Chemistry
- Jilin University
- Changchun
- China
| | - Zhonglin Wei
- Department of Chemistry
- Jilin University
- Changchun
- China
| | - Yu Liu
- Department of Chemistry
- Jilin University
- Changchun
- China
| | - Jungang Cao
- Department of Chemistry
- Jilin University
- Changchun
- China
| | - Dapeng Liang
- Department of Chemistry
- Jilin University
- Changchun
- China
| | - Yingjie Lin
- Department of Chemistry
- Jilin University
- Changchun
- China
| | - Haifeng Duan
- Department of Chemistry
- Jilin University
- Changchun
- China
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14
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Tanaka N, Tsutsumi R, Uraguchi D, Ooi T. N-Sulfonyl α-imino ester-derived chiral oxaziridines: catalytic asymmetric synthesis and application as a modular chiral organic oxidant. Chem Commun (Camb) 2017; 53:6999-7002. [DOI: 10.1039/c7cc02502e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel class of chiral N-sulfonyl oxaziridines is catalytically prepared and introduced for use as highly reactive and enantiospecific oxidants.
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Affiliation(s)
- Naoya Tanaka
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry
- Graduate School of Engineering
- Nagoya University
- Chikusa
- Japan
| | - Ryosuke Tsutsumi
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry
- Graduate School of Engineering
- Nagoya University
- Chikusa
- Japan
| | - Daisuke Uraguchi
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry
- Graduate School of Engineering
- Nagoya University
- Chikusa
- Japan
| | - Takashi Ooi
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Molecular and Macromolecular Chemistry
- Graduate School of Engineering
- Nagoya University
- Chikusa
- Japan
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15
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Lin X, Ruan S, Yao Q, Yin C, Lin L, Feng X, Liu X. Kinetic Resolution of Oxaziridines via Chiral Bifunctional Guanidine-Catalyzed Enantioselective α-Hydroxylation of β-Keto Esters. Org Lett 2016; 18:3602-5. [DOI: 10.1021/acs.orglett.6b01614] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaobin Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Sai Ruan
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Qian Yao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Chengkai Yin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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16
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Ji N, Yuan J, Liu M, Lan T, He W. Novel chiral Schiff base/Ti(iv) catalysts for the catalytic asymmetric epoxidation of N-alkenyl sulfonamides. Chem Commun (Camb) 2016; 52:7731-4. [DOI: 10.1039/c6cc02852g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel highly enantioselective Schiff base/Ti(iv) catalyst for the catalytic asymmetric epoxidation of a series of N-alkenyl sulfonamides under mild conditions was described.
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Affiliation(s)
- Nan Ji
- Department of Chemistry
- School of Pharmacy
- Fourth Military Medical University
- Xi'an 710032
- P. R. China
| | - Jiani Yuan
- Department of Chemistry
- School of Pharmacy
- Fourth Military Medical University
- Xi'an 710032
- P. R. China
| | - Miaoxi Liu
- Department of Chemistry
- School of Pharmacy
- Fourth Military Medical University
- Xi'an 710032
- P. R. China
| | - Ting Lan
- Department of Chemistry
- School of Pharmacy
- Fourth Military Medical University
- Xi'an 710032
- P. R. China
| | - Wei He
- Department of Chemistry
- School of Pharmacy
- Fourth Military Medical University
- Xi'an 710032
- P. R. China
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