1251
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Liu W, Bang J, Zhang Y, Ackermann L. Manganese(I)-Catalyzed C-H Aminocarbonylation of Heteroarenes. Angew Chem Int Ed Engl 2015; 54:14137-40. [DOI: 10.1002/anie.201507087] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Indexed: 01/12/2023]
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1252
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Sen M, Kalsi D, Sundararaju B. Cobalt(III)-Catalyzed Dehydrative [4+2] Annulation of Oxime with Alkyne by CH and NOH Activation. Chemistry 2015; 21:15529-33. [DOI: 10.1002/chem.201503643] [Citation(s) in RCA: 172] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 09/11/2015] [Indexed: 02/02/2023]
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1253
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Spangler JE, Kobayashi Y, Verma P, Wang DH, Yu JQ. α-Arylation of Saturated Azacycles and N-Methylamines via Palladium(II)-Catalyzed C(sp(3))-H Coupling. J Am Chem Soc 2015; 137:11876-9. [PMID: 26322957 PMCID: PMC4822695 DOI: 10.1021/jacs.5b06740] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Pd(II)-catalyzed α-C(sp(3))-H arylation of pyrrolidines, piperidines, azepanes, and N-methylamines with arylboronic acids has been developed for the first time. This transformation is applicable to wide arrays of pyrrolidines and boronic acids, including heteroaromatic boronic acids. A diastereoselective one-pot heterodiarylation of pyrrolidines has also been achieved.
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Affiliation(s)
- Jillian E. Spangler
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037
| | - Yoshihisa Kobayashi
- Medicinal Chemistry, Eisai Product Creation Systems, Eisai Co., Ltd, 5-1-3 Tokodai, Tsukuba-shi, Ibaraki 300-2635, Japan
| | - Pritha Verma
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037
| | - Dong-Hui Wang
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037
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1254
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Nakanowatari S, Ackermann L. Ruthenium(II)‐Catalyzed CH Functionalizations with Allenes: Versatile Allenylations and Allylations. Chemistry 2015; 21:16246-51. [DOI: 10.1002/chem.201502785] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Sachiyo Nakanowatari
- Institut für Organische und Biomolekulare Chemie, Georg‐August‐Universität Göttingen, Tammannstrasse 2, 37077 Göttingen (Germany)
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg‐August‐Universität Göttingen, Tammannstrasse 2, 37077 Göttingen (Germany)
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1255
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Cheng YF, Rong HJ, Yi CB, Yao JJ, Qu J. Redox-Triggered α-C–H Functionalization of Pyrrolidines: Synthesis of Unsymmetrically 2,5-Disubstituted Pyrrolidines. Org Lett 2015; 17:4758-61. [DOI: 10.1021/acs.orglett.5b02298] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yong-Feng Cheng
- State Key Laboratory
of Elemento-Organic
Chemistry, Collaborative Innovation Center of Chemical Science and
Engineering, Nankai University, Tianjin 300071, China
| | - Hao-Jie Rong
- State Key Laboratory
of Elemento-Organic
Chemistry, Collaborative Innovation Center of Chemical Science and
Engineering, Nankai University, Tianjin 300071, China
| | - Cheng-Bo Yi
- State Key Laboratory
of Elemento-Organic
Chemistry, Collaborative Innovation Center of Chemical Science and
Engineering, Nankai University, Tianjin 300071, China
| | - Jun-Jun Yao
- State Key Laboratory
of Elemento-Organic
Chemistry, Collaborative Innovation Center of Chemical Science and
Engineering, Nankai University, Tianjin 300071, China
| | - Jin Qu
- State Key Laboratory
of Elemento-Organic
Chemistry, Collaborative Innovation Center of Chemical Science and
Engineering, Nankai University, Tianjin 300071, China
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1256
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Wu HR, Huang HY, Ren CL, Liu L, Wang D, Li CJ. FeIII-Catalyzed Cross-Dehydrogenative Arylation (CDA) between Oxindoles and Arenes under an Air Atmosphere. Chemistry 2015; 21:16744-8. [DOI: 10.1002/chem.201502519] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Indexed: 12/24/2022]
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1257
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Jin LK, Wan L, Feng J, Cai C. Nickel-Catalyzed Regioselective Cross-Dehydrogenative Coupling of Inactive C(sp3)–H Bonds with Indole Derivatives. Org Lett 2015; 17:4726-9. [DOI: 10.1021/acs.orglett.5b02217] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Li-Kun Jin
- Chemical
Engineering College, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of China
| | - Li Wan
- Biotechnology
and Pharmaceutical Engineering College, Nanjing Tech University, Nanjing 211816, People’s Republic of China
| | - Jie Feng
- Chemical
Engineering College, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of China
| | - Chun Cai
- Chemical
Engineering College, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of China
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1258
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de Graaff C, Bensch L, van Lint MJ, Ruijter E, Orru RVA. IBX-mediated oxidation of unactivated cyclic amines: application in highly diastereoselective oxidative Ugi-type and aza-Friedel-Crafts reactions. Org Biomol Chem 2015; 13:10108-12. [PMID: 26368318 DOI: 10.1039/c5ob01519g] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first o-iodoxybenzoic acid (IBX) mediated oxidation of unactivated amines to imines is described. A range of meso-pyrrolidines were shown to be suitable substrates. The chemical space was further explored with one-pot oxidative Ugi-type and aza-Friedel-Crafts reactions, which proved to be highly diastereoselective.
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Affiliation(s)
- C de Graaff
- Department of Chemistry & Pharmaceutical Sciences and Amsterdam Institute for Molecules Medicines and Systems (AIMMS), VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands.
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1259
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Tjutrins J, Arndtsen BA. An Electrophilic Approach to the Palladium-Catalyzed Carbonylative C-H Functionalization of Heterocycles. J Am Chem Soc 2015; 137:12050-4. [PMID: 26322963 DOI: 10.1021/jacs.5b07098] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A palladium-catalyzed approach to intermolecular carbonylative C-H functionalization is described. This transformation is mediated by P(t)Bu3-coordinated palladium catalyst and allows the derivatization of a diverse range of heterocycles, including pyrroles, indoles, imidazoles, benzoxazoles, and furans. Preliminary studies suggest that this reaction may proceed via the catalytic formation of highly electrophilic intermediates. Overall, this provides with an atom-economical and general synthetic route to generate aryl-(hetero)aryl ketones using stable reagents (aryl iodides and CO) and without the typical need to exploit pre-metalated heterocycles in carbonylative coupling chemistry.
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Affiliation(s)
- Jevgenijs Tjutrins
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Bruce A Arndtsen
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
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1260
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Sun J, Wang Y, Pan Y. Metal-Free Catalytic Approach for Allylic C–H Amination Using N-Heterocycles via sp3 C–H Bond Activation. J Org Chem 2015; 80:8945-50. [DOI: 10.1021/acs.joc.5b01383] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jinwei Sun
- School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Yi Wang
- School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Yi Pan
- School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, China
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1261
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Aerobic Asymmetric Dehydrogenative Cross-Coupling between Two C sp 3H Groups Catalyzed by a Chiral-at-Metal Rhodium Complex. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201506273] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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1262
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Tan Y, Yuan W, Gong L, Meggers E. Aerobic Asymmetric Dehydrogenative Cross‐Coupling between Two CH Groups Catalyzed by a Chiral‐at‐Metal Rhodium Complex. Angew Chem Int Ed Engl 2015; 54:13045-8. [DOI: 10.1002/anie.201506273] [Citation(s) in RCA: 124] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Indexed: 01/07/2023]
Affiliation(s)
- Yuqi Tan
- Key Laboratory for Chemical Biology of Fujian Province and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (P.R. China)
| | - Wei Yuan
- Key Laboratory for Chemical Biology of Fujian Province and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (P.R. China)
| | - Lei Gong
- Key Laboratory for Chemical Biology of Fujian Province and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (P.R. China)
| | - Eric Meggers
- Key Laboratory for Chemical Biology of Fujian Province and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (P.R. China)
- Fachbereich Chemie, Philipps‐Universität Marburg, Hans‐Meerwein‐Straße 4, 35043 Marburg (Germany)
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1263
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Ma L, Seidel D. Intramolecular Redox-Mannich Reactions: Facile Access to the Tetrahydroprotoberberine Core. Chemistry 2015; 21:12908-13. [PMID: 26220197 PMCID: PMC4808586 DOI: 10.1002/chem.201501667] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Indexed: 01/31/2023]
Abstract
Cyclic amines such as pyrrolidine undergo redox-annulations with 2-formylaryl malonates. Concurrent oxidative amine α-CH bond functionalization and reductive N-alkylation render this transformation redox-neutral. This redox-Mannich process provides regioisomers of classic Reinhoudt reaction products as an entry to the tetrahydroprotoberberine core, enabling the synthesis of (±)-thalictricavine and its epimer. An unusually mild amine-promoted dealkoxycarbonylation was discovered in the course of these studies.
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Affiliation(s)
- Longle Ma
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854 (USA) http://seidel-group.com
| | - Daniel Seidel
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854 (USA) http://seidel-group.com.
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1264
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Copper-catalyzed cross-dehydrogenative-coulping (CDC) of coumarins with cyclic ethers and cycloalkane. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.07.052] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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1265
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Ma J, Hu Z, Li M, Zhao W, Hu X, Mo W, Hu B, Sun N, Shen Z. DDQ/tert-Butyl nitrite-catalyzed aerobic oxidation of diarylmethane sp3 C–H bonds. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.07.042] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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1266
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Wang R, Bao W. Iron(III) acetylacetonate catalyzed tandem oxidative addition/cyclization of simple amides with alkenes: a convenient process to synthesize 3-amido oxindoles. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.07.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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1267
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Yu J, Wang Z, Zhang Y, Su W. Mechanically activated ring-opening reactions of N-acyl-1,2,3,4-tetrahydroisoquinolines derived from the synthesis of praziquantel intermediate. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.06.105] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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1268
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Libman A, Shalit H, Vainer Y, Narute S, Kozuch S, Pappo D. Synthetic and Predictive Approach to Unsymmetrical Biphenols by Iron-Catalyzed Chelated Radical–Anion Oxidative Coupling. J Am Chem Soc 2015; 137:11453-60. [DOI: 10.1021/jacs.5b06494] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Anna Libman
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Hadas Shalit
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Yulia Vainer
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Sachin Narute
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Sebastian Kozuch
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Doron Pappo
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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1269
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Zhao M, Zhang W, Shen Z. Cu-Catalyzed Cyanation of Indoles with Acetonitrile as a Cyano Source. J Org Chem 2015; 80:8868-73. [DOI: 10.1021/acs.joc.5b01419] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Mengdi Zhao
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Wei Zhang
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zengming Shen
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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1270
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Zhou T, Li L, Li B, Song H, Wang B. Ir(III)-Catalyzed Oxidative Coupling of NH Isoquinolones with Benzoquinone. Org Lett 2015; 17:4204-7. [DOI: 10.1021/acs.orglett.5b01974] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
| | | | | | | | - Baiquan Wang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People’s Republic of China
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1271
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Yang X, Liu Z, Sun C, Chen J, Yu Z. Palladium‐Catalyzed Oxidative Cross‐Coupling of α‐Cyanoketene Dithioacetals with Olefins. Chemistry 2015; 21:14085-94. [DOI: 10.1002/chem.201502280] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Indexed: 01/15/2023]
Affiliation(s)
- Xiaoge Yang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (P. R. China)
| | - Zhuqing Liu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (P. R. China)
| | - Chenglin Sun
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (P. R. China)
| | - Jiping Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (P. R. China)
| | - Zhengkun Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023 (P. R. China)
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032 (P. R. China)
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1272
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Huo C, Yuan Y, Chen F, Tang J, Wang Y. Copper-Catalyzed Aerobic Oxidative Dehydrogenative Formal [2 + 3] Cyclization of Glycine Esters with α-Angelicalactone: Approach To Construct Polysubstituted Pyrrolidones. Org Lett 2015; 17:4208-11. [DOI: 10.1021/acs.orglett.5b01985] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Congde Huo
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Yong Yuan
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Fengjuan Chen
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Jing Tang
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Yajun Wang
- Key Laboratory
of Eco-Environment-Related
Polymer Materials Ministry of Education, College of Chemistry and
Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
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1273
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Minami Y, Kodama T, Hiyama T. Dehydrogenative Carbon–Carbon Bond Formation Using Alkynyloxy Moieties as Hydrogen‐Accepting Directing Groups. Angew Chem Int Ed Engl 2015; 54:11813-6. [DOI: 10.1002/anie.201505789] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 07/18/2015] [Indexed: 12/23/2022]
Affiliation(s)
- Yasunori Minami
- Research and Development Initiative, Chuo University and JST, ACT‐C, Kasuga, Bunkyo‐ku, Tokyo 112‐8551 (Japan)
| | - Tatsuro Kodama
- Department of Applied Chemistry, Chuo University, Kasuga, Bunkyo‐ku, Tokyo 112‐8551 (Japan)
| | - Tamejiro Hiyama
- Research and Development Initiative, Chuo University and JST, ACT‐C, Kasuga, Bunkyo‐ku, Tokyo 112‐8551 (Japan)
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1274
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Minami Y, Kodama T, Hiyama T. Dehydrogenative Carbon-Carbon Bond Formation Using Alkynyloxy Moieties as Hydrogen-Accepting Directing Groups. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505789] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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1275
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Luo H, Pan L, Xu X, Liu Q. Friedel–Crafts Coupling of Electron-Deficient Benzoylacetones Tuned by Remote Electronic Effects. J Org Chem 2015; 80:8282-9. [DOI: 10.1021/acs.joc.5b01371] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hongmei Luo
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People’s Republic of China
| | - Ling Pan
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People’s Republic of China
| | - Xianxiu Xu
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People’s Republic of China
| | - Qun Liu
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People’s Republic of China
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1276
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Kaida H, Satoh T, Hirano K, Miura M. Synthesis of Thieno[3,2-b]benzofurans by Palladium-catalyzed Intramolecular C–H/C–H Coupling. CHEM LETT 2015. [DOI: 10.1246/cl.150408] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Hiroyuki Kaida
- Department of Applied Chemistry, Faculty of Engineering, Osaka University
| | - Tetsuya Satoh
- Department of Applied Chemistry, Faculty of Engineering, Osaka University
- Department of Chemistry, Graduate School of Science, Osaka City University
- JST, ACT-C
| | - Koji Hirano
- Department of Applied Chemistry, Faculty of Engineering, Osaka University
| | - Masahiro Miura
- Department of Applied Chemistry, Faculty of Engineering, Osaka University
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1277
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Narayan R, Matcha K, Antonchick AP. Metal-Free Oxidative C-C Bond Formation through C-H Bond Functionalization. Chemistry 2015; 21:14678-93. [PMID: 26239615 DOI: 10.1002/chem.201502005] [Citation(s) in RCA: 134] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The formation of C-C bonds embodies the core of organic chemistry because of its fundamental application in generation of molecular diversity and complexity. C-C bond-forming reactions are well-known challenges. To achieve this goal through direct functionalization of C-H bonds in both of the coupling partners represents the state-of-the-art in organic synthesis. Oxidative C-C bond formation obviates the need for prefunctionalization of both substrates. This Minireview is dedicated to the field of C-C bond-forming reactions through direct C-H bond functionalization under completely metal-free oxidative conditions. Selected important developments in this area have been summarized with representative examples and discussions on their reaction mechanisms.
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Affiliation(s)
- Rishikesh Narayan
- Abteilung Chemische Biologie, Max-Planck-Institut für Molekulare Physiologie, Otto-Hahn Strasse 11, 44227 Dortmund (Germany)
| | - Kiran Matcha
- Abteilung Chemische Biologie, Max-Planck-Institut für Molekulare Physiologie, Otto-Hahn Strasse 11, 44227 Dortmund (Germany).,Present Address: API Small Molecule Process Research and Development, Janssen Pharmaceutica NV, Turnhotsweg 30, 2340 Beerse (Belgium)
| | - Andrey P Antonchick
- Abteilung Chemische Biologie, Max-Planck-Institut für Molekulare Physiologie, Otto-Hahn Strasse 11, 44227 Dortmund (Germany). .,Fakultät Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn Strasse 6, 44221 Dortmund (Germany).
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1278
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1279
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Gupta PK, Yadav N, Jaiswal S, Asad M, Kant R, Hajela K. Palladium-Catalyzed Synthesis of Phenanthridine/Benzoxazine-Fused Quinazolinones by Intramolecular CH Bond Activation. Chemistry 2015; 21:13210-5. [DOI: 10.1002/chem.201501591] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Indexed: 11/11/2022]
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1280
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Huang HY, Wu HR, Wei F, Wang D, Liu L. Iodine-Catalyzed Direct Olefination of 2-Oxindoles and Alkenes via Cross-Dehydrogenative Coupling (CDC) in Air. Org Lett 2015. [DOI: 10.1021/acs.orglett.5b01662] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hong-Yan Huang
- Beijing
National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory
of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hong-Ru Wu
- Beijing
National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory
of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Feng Wei
- Beijing
National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory
of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dong Wang
- Beijing
National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory
of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Li Liu
- Beijing
National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory
of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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1281
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Iminoiodane- and Brønsted base-mediated cross dehydrogenative coupling of cyclic ethers with 1,3-dicarbonyl compounds. Molecules 2015. [PMID: 26205058 PMCID: PMC6332110 DOI: 10.3390/molecules200713336] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A one-pot, two-step approach to prepare 2-tetrahydrofuran and -pyran substituted 1,3-dicarbonyl compounds by PhI=NTs-mediated amination/Brønsted base-catalyzed cross dehydrogenative coupling (CDC) reaction of the cyclic ether and 1,3-dicarbonyl derivative under mild conditions is reported. The reaction is compatible with a variety of cyclic ethers and 1,3-dicarbonyl compounds, affording the corresponding coupled products in moderate to good yields of up to 80% over two steps.
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1282
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Zhang G, Liu C, Yi H, Meng Q, Bian C, Chen H, Jian JX, Wu LZ, Lei A. External Oxidant-Free Oxidative Cross-Coupling: A Photoredox Cobalt-Catalyzed Aromatic C-H Thiolation for Constructing C-S Bonds. J Am Chem Soc 2015; 137:9273-80. [PMID: 26158688 DOI: 10.1021/jacs.5b05665] [Citation(s) in RCA: 270] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An external oxidant-free oxidative coupling for aromatic C-H thiolation by visible-light photoredox cobalt-catalysis has been developed. Various substrates could afford benzothiazoles in good to excellent yields, and only H2 is generated as a side product. When catalytic TBAOH was used as the base, not only 2-aryl but also 2-alkylbenzothiazoles could be obtained through this novel dehydrogenative coupling reaction. This method could be scaled up and applied to the synthesis of biologically active molecules bearing benzothiazole structural scaffolds (potent antitumor agents). Furthermore, the unexpected oxidation byproduct amides, which are often generated in oxidative cyclization of thiobenzanilides, can be completely avoided. Mechanistic studies showed that the H2 originates from the substrates. The kinetic studies indicate that the interaction between the cobalt catalyst and proton might be involved in the rate-limiting process.
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Affiliation(s)
- Guoting Zhang
- †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Chao Liu
- †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Hong Yi
- †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | | | - Changliang Bian
- †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Hong Chen
- †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | | | | | - Aiwen Lei
- †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China.,§Institute for Advanced Studies (IAS) of Wuhan University, Wuhan, Hubei 430071, P. R. China
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1283
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Huang JG, Guo Y, Li YD, Liu HW, Liao DH, Ji YF. Undecorated Cu(OAc)2-Catalyzed C(sp3)-C(sp3) Bond Formation throughpara-Hydroxy Group Triggered Remote Benzylic C(sp3)-H Bond Functionalization. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500706] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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1284
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Batchu H, Bhattacharyya S, Kant R, Batra S. Palladium-Catalyzed Chelation-Assisted Regioselective Oxidative Dehydrogenative Homocoupling/Ortho-Hydroxylation in N-Phenylpyrazoles. J Org Chem 2015; 80:7360-74. [DOI: 10.1021/acs.joc.5b00733] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | | | | | - Sanjay Batra
- Academy of Scientific and Innovative Research, New Delhi, 110025, India
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1285
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Gensch T, Vásquez-Céspedes S, Yu DG, Glorius F. Cobalt(III)-Catalyzed Directed C–H Allylation. Org Lett 2015; 17:3714-7. [DOI: 10.1021/acs.orglett.5b01701] [Citation(s) in RCA: 166] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tobias Gensch
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Suhelen Vásquez-Céspedes
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Da-Gang Yu
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
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1286
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Saidulu G, Kumar RA, Reddy KR. Iron-catalyzed C–N bond formation via oxidative Csp3–H bond functionalization adjacent to nitrogen in amides and anilines: Synthesis of N-alkyl and N-benzyl azoles. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.05.048] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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1287
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Tirler C, Ackermann L. Ruthenium(II)-catalyzed cross-dehydrogenative C–H alkenylations by triazole assistance. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.02.033] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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1288
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1289
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Zheng Y, Song WB, Xuan LJ. Copper-catalyzed oxidative esterification of ortho-formyl phenols without affecting labile formyl group. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.06.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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1290
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Shelar DP, Li TT, Chen Y, Fu WF. Platinum(II) Schiff Base Complexes as Photocatalysts for Visible-Light-Induced Cross-Dehydrogenative Coupling Reactions. Chempluschem 2015; 80:1541-1546. [DOI: 10.1002/cplu.201500157] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2015] [Revised: 06/03/2015] [Indexed: 12/24/2022]
Affiliation(s)
- Deepak Prakash Shelar
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Ting-Ting Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Yong Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Wen-Fu Fu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
- College of Chemistry and Chemical Engineering; Yunnan Normal University; Kunming 650092 P. R. China
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1291
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Shigenobu M, Takenaka K, Sasai H. Palladium-Catalyzed Direct CH Arylation of Isoxazoles at the 5-Position. Angew Chem Int Ed Engl 2015; 54:9572-6. [DOI: 10.1002/anie.201504552] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Indexed: 01/09/2023]
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1292
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Shigenobu M, Takenaka K, Sasai H. Palladium-Catalyzed Direct CH Arylation of Isoxazoles at the 5-Position. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504552] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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1293
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Franz JF, Kraus WB, Zeitler K. No photocatalyst required--versatile, visible light mediated transformations with polyhalomethanes. Chem Commun (Camb) 2015; 51:8280-3. [PMID: 25877133 DOI: 10.1039/c4cc10270c] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A visible light mediated, but photocatalyst-free method for the oxidative α-CH functionalization of tertiary amines with a broad scope of carbon- and heteroatom nucleophiles using polyhalomethanes has been developed. In addition, the pivotal visible light triggered activation of polyhalomethanes offers mild conditions for efficient Kharasch-type additions onto non-activated olefins. Preliminary mechanistic studies are reported.
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Affiliation(s)
- Johannes F Franz
- Institut für Organische Chemie, Universität Leipzig, D-04103 Leipzig, Germany.
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1294
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Hu M, Fan JH, Liu Y, Ouyang XH, Song RJ, Li JH. Metal-Free Radical [2+2+1] Carbocyclization of Benzene-Linked 1,n-Enynes: Dual C(sp3)H Functionalization Adjacent to a Heteroatom. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504603] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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1295
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Hu M, Fan JH, Liu Y, Ouyang XH, Song RJ, Li JH. Metal-Free Radical [2+2+1] Carbocyclization of Benzene-Linked 1,n-Enynes: Dual C(sp3)H Functionalization Adjacent to a Heteroatom. Angew Chem Int Ed Engl 2015; 54:9577-80. [DOI: 10.1002/anie.201504603] [Citation(s) in RCA: 148] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Indexed: 01/18/2023]
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1296
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Kong S, Zhang L, Dai X, Tao L, Xie C, Shi L, Wang M. DDQ-mediated Direct C(sp3)H Cyanation of Benzyl Ethers and 1,3-Diarylpropenes under Solvent- and Metal-free Conditions. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500096] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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1297
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Jin L, Feng J, Lu G, Cai C. Di-tert-butyl Peroxide (DTBP)-Mediated Oxidative Cross- Coupling of Isochroman and Indole Derivatives. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500048] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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1298
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He Y, Mao J, Rong G, Yan H, Zhang G. Iron-Catalyzed Esterification of Benzyl CH Bonds to Form α-Keto Benzyl Esters. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500252] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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1299
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McCann SD, Stahl SS. Copper-Catalyzed Aerobic Oxidations of Organic Molecules: Pathways for Two-Electron Oxidation with a Four-Electron Oxidant and a One-Electron Redox-Active Catalyst. Acc Chem Res 2015; 48:1756-66. [PMID: 26020118 DOI: 10.1021/acs.accounts.5b00060] [Citation(s) in RCA: 356] [Impact Index Per Article: 39.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Selective oxidation reactions have extraordinary value in organic chemistry, ranging from the conversion of petrochemical feedstocks into industrial chemicals and polymer precursors to the introduction of heteroatom functional groups into pharmaceutical and agrochemical intermediates. Molecular oxygen (O2) would be the ideal oxidant for these transformations. Whereas many commodity-scale oxidations of simple hydrocarbon feedstocks employ O2 as an oxidant, methods for selective oxidation of more complex molecules bearing diverse functional groups are often incompatible with existing aerobic oxidation methods. The latter limitation provides the basis for our interest in the development of new catalytic transformations and the elucidation of mechanistic principles that underlie selective aerobic oxidation reactions. One challenge inherent in such methods is the incommensurate redox stoichiometry associated with the use of O2, a four-electron oxidant, in reactions that achieve two-electron oxidation of organic molecules. This issue is further complicated by the use of first-row transition-metal catalysts, which tend to undergo facile one-electron redox steps. In recent years, we have been investigating Cu-catalyzed aerobic oxidation reactions wherein the complexities just noted are clearly evident. This Account surveys our work in this area, which has emphasized three general classes of reactions: (1) single-electron-transfer reactions for oxidative functionalization of electron-rich substrates, such as arenes and heterocycles; (2) oxidative carbon-heteroatom bond-forming reactions, including C-H oxidations, that proceed via organocopper(III) intermediates; and (3) methods for aerobic oxidation of alcohols and amines that use Cu(II) in combination with an organic redox-active cocatalyst to dehydrogenate the carbon-heteroatom bond. These reaction classes demonstrate three different pathways to achieve two-electron oxidation of organic molecules via the cooperative involvement of two one-electron oxidants, either two Cu(II) species or Cu(II) and a nitroxyl cocatalyst. They show the ability of Cu to participate in traditional organometallic steps commonly associated with precious-metal catalysts, such as C-H activation and reductive elimination, but also demonstrate the accessibility of reaction steps not typically associated with precious-metal catalysts, such as single-electron transfer. Many of the Cu-catalyzed reactions offer advantages over analogous two-electron oxidation reactions mediated by palladium or other noble metals. For example, carbon-heteroatom oxidative coupling reactions in the first two reaction classes noted above are capable of using O2 as the terminal oxidant, while analogous reactions with Pd commonly require less desirable oxidants, such as hypervalent iodine or electrophilic halogen sources. In addition, the alcohol and amine oxidations in the third reaction class are significantly more efficient and show much broader scope and functional group tolerance than related Pd-catalyzed reactions. The mechanistic basis for these differences are described herein.
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Affiliation(s)
- Scott D. McCann
- Department
of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Shannon S. Stahl
- Department
of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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1300
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Li YJ, Li X, Zhang SX, Zhao YL, Liu Q. Copper(II)-catalyzed oxidative [3+2] cycloaddition reactions of secondary amines with α-diazo compounds: a facile and efficient synthesis of 1,2,3-triazoles. Chem Commun (Camb) 2015; 51:11564-7. [PMID: 26076660 DOI: 10.1039/c5cc02092a] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel copper-catalyzed [3+2] cycloaddition reaction of secondary amines with α-diazo compounds has been developed via a cross-dehydrogenative coupling process. The reaction involves a sequential aerobic oxidation/[3+2] cycloaddition/oxidative aromatization procedure and provides an efficient method for the construction of 1,2,3-triazoles in a single step in an atom-economic manner from readily available starting materials under very mild conditions.
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Affiliation(s)
- Yi-Jin Li
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China.
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