251
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Zhu F, Wang ZX. Palladium-Catalyzed Coupling of Azoles or Thiazoles with Aryl Thioethers via C–H/C–S Activation. Org Lett 2015; 17:1601-4. [DOI: 10.1021/acs.orglett.5b00510] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Feng Zhu
- CAS
Key Laboratory of Soft Matter Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhong-Xia Wang
- CAS
Key Laboratory of Soft Matter Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China
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252
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Minami H, Saito T, Wang C, Uchiyama M. Organoaluminum-Mediated Direct Cross-Coupling Reactions. Angew Chem Int Ed Engl 2015; 54:4665-8. [DOI: 10.1002/anie.201412249] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Indexed: 11/08/2022]
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253
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Minami H, Saito T, Wang C, Uchiyama M. Organoaluminum-Mediated Direct Cross-Coupling Reactions. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201412249] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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254
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Cornella J, Jackson EP, Martin R. Nickel-Catalyzed Enantioselective CC Bond Formation through C sp 2O Cleavage in Aryl Esters. Angew Chem Int Ed Engl 2015; 54:4075-8. [DOI: 10.1002/anie.201412051] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Indexed: 11/11/2022]
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255
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Cornella J, Jackson EP, Martin R. Nickel-Catalyzed Enantioselective CC Bond Formation through C sp 2O Cleavage in Aryl Esters. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201412051] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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256
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Kinuta H, Tobisu M, Chatani N. Rhodium-Catalyzed Borylation of Aryl 2-Pyridyl Ethers through Cleavage of the Carbon–Oxygen Bond: Borylative Removal of the Directing Group. J Am Chem Soc 2015; 137:1593-600. [DOI: 10.1021/ja511622e] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hirotaka Kinuta
- Department
of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Mamoru Tobisu
- Center
for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department
of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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257
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Kotek V, Dvořáková H, Tobrman T. Modular and Highly Stereoselective Approach to All-Carbon Tetrasubstituted Alkenes. Org Lett 2015; 17:608-11. [DOI: 10.1021/ol503624v] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Vladislav Kotek
- Department of Organic Chemistry and ‡Laboratory of
NMR Spectroscopy, University of Chemistry and Technology, Prague, Technická
5, 166 28 Prague 6, Czech Republic
| | - Hana Dvořáková
- Department of Organic Chemistry and ‡Laboratory of
NMR Spectroscopy, University of Chemistry and Technology, Prague, Technická
5, 166 28 Prague 6, Czech Republic
| | - Tomáš Tobrman
- Department of Organic Chemistry and ‡Laboratory of
NMR Spectroscopy, University of Chemistry and Technology, Prague, Technická
5, 166 28 Prague 6, Czech Republic
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258
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Tobisu M, Takahira T, Ohtsuki A, Chatani N. Nickel-Catalyzed Alkynylation of Anisoles via C–O Bond Cleavage. Org Lett 2015; 17:680-3. [DOI: 10.1021/ol503707m] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Mamoru Tobisu
- Center
for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Tsuyoshi Takahira
- Department
of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Akimichi Ohtsuki
- Department
of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department
of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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259
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Cao ZC, Luo FX, Shi WJ, Shi ZJ. Direct borylation of benzyl alcohol and its analogues in the absence of bases. Org Chem Front 2015. [DOI: 10.1039/c5qo00243e] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Direct borylation of arylmethanols to synthesize important and useful benzylboronates was carried out through Pd(OAc)2-catalyzed sp3 C–O activation.
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Affiliation(s)
- Zhi-Chao Cao
- Beijing National Laboratory of Molecule Science (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry and Green Chemistry Center
- Peking University
- Beijing
- China
| | - Fei-Xian Luo
- Beijing National Laboratory of Molecule Science (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry and Green Chemistry Center
- Peking University
- Beijing
- China
| | - Wen-Juan Shi
- Beijing National Laboratory of Molecule Science (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry and Green Chemistry Center
- Peking University
- Beijing
- China
| | - Zhang-Jie Shi
- Beijing National Laboratory of Molecule Science (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry and Green Chemistry Center
- Peking University
- Beijing
- China
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260
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Xu H, Yu B, Zhang H, Zhao Y, Yang Z, Xu J, Han B, Liu Z. Reductive cleavage of inert aryl C–O bonds to produce arenes. Chem Commun (Camb) 2015; 51:12212-5. [DOI: 10.1039/c5cc03563e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reductive cleavage of aryl C–O bonds in phenols and aryl ethers was achieved using LiAlH4–KOtBu, producing arenes in high yields.
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Affiliation(s)
- Huanjun Xu
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Colloid
- Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Bo Yu
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Colloid
- Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Hongye Zhang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Colloid
- Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Yanfei Zhao
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Colloid
- Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Zhenzhen Yang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Colloid
- Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Jilei Xu
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Colloid
- Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Colloid
- Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Zhimin Liu
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Colloid
- Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
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261
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Ding L, Zheng W, Wang Y. Theoretical study on homolytic C(sp2)–O cleavage in ethers and phenols. NEW J CHEM 2015. [DOI: 10.1039/c5nj01354b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The C(sp2)–O BDEs and the substituent effect of ethers/phenols were investigated in detail by the wB97 method.
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Affiliation(s)
- Lanlan Ding
- College of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- China
| | - Wenrui Zheng
- College of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- China
| | - Yingxing Wang
- College of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- China
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262
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Kampmann SS, Man NYT, McKinley AJ, Koutsantonis GA, Stewart SG. Exploring the Catalytic Reactivity of Nickel Phosphine–Phosphite Complexes. Aust J Chem 2015. [DOI: 10.1071/ch15459] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this study, we present an investigation into various nickel phosphite and phosphite–phosphine complexes for use in the Mizoroki–Heck and Suzuki–Miyaura cross-coupling reactions and the ammonia arylation reaction. In these coupling reactions, it was discovered that the Ni[P(OEt)3]4, (dppf)Ni[P(OPh)3]2, and (binap)Ni[P(OPh)3]2 catalysts were the most effective. In addition, an optimisation process for these catalytic systems as well as functional group compatibility are discussed.
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263
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Wu GJ, Han FS, Zhao YL. Palladacycles derived from arylphosphinamides for mild Suzuki–Miyaura cross-couplings. RSC Adv 2015. [DOI: 10.1039/c5ra12742d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We present the arylphosphinamide-derived palladacyclic complexes (see Scheme) which could be used as efficient and versatile precatalysts for mild Suzuki–Miyaura cross-coupling.
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Affiliation(s)
- Guo-Jie Wu
- Key Lab of Synthetic Rubber
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Fu-She Han
- Key Lab of Synthetic Rubber
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Yu-Long Zhao
- Department of Chemistry
- Northeast Normal University
- Changchun
- China
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264
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Chen XC, Nishinaga S, Okuda Y, Zhao JJ, Xu J, Mori H, Nishihara Y. A divergent synthesis of 3,10-dialkylpicenes. Org Chem Front 2015. [DOI: 10.1039/c5qo00039d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A series of 3,10-dialkylated picenes has been synthesized through sequential Ni-catalyzed alkynylation of a C–O bond, alkylation, and hydrogenation.
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Affiliation(s)
- Xi-Chao Chen
- Division of Earth
- Life
- and Molecular Sciences
- Graduate School of Natural Science and Technology
- Okayama University
| | - Shuhei Nishinaga
- Division of Earth
- Life
- and Molecular Sciences
- Graduate School of Natural Science and Technology
- Okayama University
| | - Yasuhiro Okuda
- Division of Earth
- Life
- and Molecular Sciences
- Graduate School of Natural Science and Technology
- Okayama University
| | - Jia-Ji Zhao
- Division of Earth
- Life
- and Molecular Sciences
- Graduate School of Natural Science and Technology
- Okayama University
| | - Jie Xu
- Division of Earth
- Life
- and Molecular Sciences
- Graduate School of Natural Science and Technology
- Okayama University
| | - Hiroki Mori
- Division of Earth
- Life
- and Molecular Sciences
- Graduate School of Natural Science and Technology
- Okayama University
| | - Yasushi Nishihara
- Division of Earth
- Life
- and Molecular Sciences
- Graduate School of Natural Science and Technology
- Okayama University
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265
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Goetz AE, Shah TK, Garg NK. Pyridynes and indolynes as building blocks for functionalized heterocycles and natural products. Chem Commun (Camb) 2015; 51:34-45. [DOI: 10.1039/c4cc06445c] [Citation(s) in RCA: 202] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This feature article showcases the use of pyridynes and indolynes to construct functionalized heterocycles and complex natural products.
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Affiliation(s)
- Adam E. Goetz
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
| | - Tejas K. Shah
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
| | - Neil K. Garg
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
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266
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Kerr WJ, Lindsay DM, Patel VK, Rajamanickam M. Efficient methods for enol phosphate synthesis using carbon-centred magnesium bases. Org Biomol Chem 2015; 13:10131-5. [DOI: 10.1039/c5ob01849h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Efficient conversion of ketones into enol phosphates under mild and accessible conditions has been realised using the developed methods with di-tert-butylmagnesium and bismesitylmagnesium. Optimisation of the quench protocol resulted in high yields of enol phosphates from a range of cyclohexanones and aryl methyl ketones.
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Affiliation(s)
- William J. Kerr
- Department of Pure and Applied Chemistry
- WestCHEM
- University of Strathclyde
- Glasgow
- UK
| | - David M. Lindsay
- Department of Pure and Applied Chemistry
- WestCHEM
- University of Strathclyde
- Glasgow
- UK
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267
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Wu D, Tao JL, Wang ZX. Highly efficient pincer nickel catalyzed cross-coupling of aryltrimethylammonium triflates with arylzinc reagents. Org Chem Front 2015. [DOI: 10.1039/c4qo00321g] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N,N,P-Pincer nickel complexes [Ni(Cl){N(2-R2PC6H4)(2′-Me2NC6H4)}] highly effectively catalyze the cross-coupling of aryltrimethylammonium triflates with arylzinc reagents.
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Affiliation(s)
- Dan Wu
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- China
| | - Jian-Long Tao
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- China
| | - Zhong-Xia Wang
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
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268
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Verma A, Patel S, Meenakshi M, Kumar A, Yadav A, Kumar S, Jana S, Sharma S, Prasad CD, Kumar S. Transition metal free intramolecular selective oxidative C(sp3)–N coupling: synthesis of N-aryl-isoindolinones from 2-alkylbenzamides. Chem Commun (Camb) 2015; 51:1371-4. [DOI: 10.1039/c4cc08717h] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A transition metal-free intramolecular selective oxidative coupling reaction of C(sp3)–H and N–H bonds has been presented utilizing iodine, potassium carbonate and di-tert-butyl peroxide in acetonitrile at 110–140 °C.
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Affiliation(s)
- Ajay Verma
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India-462 066
| | - Saket Patel
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India-462 066
| | - Meenakshi Meenakshi
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India-462 066
| | - Amit Kumar
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India-462 066
| | - Abhimanyu Yadav
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India-462 066
| | - Shailesh Kumar
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India-462 066
| | - Sadhan Jana
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India-462 066
| | - Shubham Sharma
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India-462 066
| | - Ch. Durga Prasad
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India-462 066
| | - Sangit Kumar
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Bhopal
- Bhopal
- India-462 066
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269
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Ikawa T. [Efficient synthesis of multisubstituted aromatic compounds from phenol derivatives]. YAKUGAKU ZASSHI 2014; 134:1309-17. [PMID: 25452240 DOI: 10.1248/yakushi.14-00192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Phenols are abundant in nature and diverse phenols are readily available commercially at low cost. Thus, phenols can be used as the raw materials for the synthesis of valuable multisubstituted aromatic compounds by the direct activation of phenolic hydroxyl groups (C-O bond activation), followed by substitutions with other substituents. Although the derivatization of phenolic hydroxyl groups to sulfonates, such as triflates, nonaflates, tosylates and mesylates, followed by the transition-metal-catalyzed coupling reactions has been extensively investigated for this purpose, the direct C-O bond activation of phenols for subsequent functional group transformation has been a long-standing challenge in modern organic synthesis. In this review, I have summarized my recent studies on the formal direct C-O bond activation of phenols using nonafluorobutanesulfonyl fluoride (NfF) for the synthesis of multisubstituted aromatics. I have focused on the dual use of NfF, a less expensive commercially available reagent, including the tentative formation of highly reactive nonaflates from phenols and the use of the liberated fluoride ion as a nucleophile to promote the reactions of nonaflates. The following four topics are discussed: 1) palladium-catalyzed coupling reactions of phenols, 2) novel preparation of benzynes from 2-silylphenols, 3) synthesis of fluorinated aromatic compounds via the formation of benzynes, and 4) Hiyama coupling of (tert-butyldimethylsilyl)arenes activated by internal phenolic hydroxyl groups.
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Affiliation(s)
- Takashi Ikawa
- Graduate School of Pharmaceutical Sciences, Osaka University
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270
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Zhong Y, Gong X, Zhu X, Ni Z, Wang H, Fu J, Han W. In situ generated nickel nanoparticle-catalyzed carbonylative Suzuki reactions of aryl iodides with arylboronic acids at ambient CO pressure in poly(ethylene glycol). RSC Adv 2014. [DOI: 10.1039/c4ra10739j] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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271
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Medina JM, Mackey JL, Garg NK, Houk KN. The role of aryne distortions, steric effects, and charges in regioselectivities of aryne reactions. J Am Chem Soc 2014; 136:15798-805. [PMID: 25303232 PMCID: PMC4221504 DOI: 10.1021/ja5099935] [Citation(s) in RCA: 236] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Indexed: 12/16/2022]
Abstract
The distortion/interaction model has been used to explain and predict reactivity in a variety of reactions where more common explanations, such as steric and electronic factors, do not suffice. This model has also provided new fundamental insight into regioselectivity trends in reactions of unsymmetrical arynes, which in turn has fueled advances in aryne methodology and natural product synthesis. This article describes a systematic experimental and computational study of one particularly important class of arynes, 3-halobenzynes. 3-Halobenzynes are useful synthetic building blocks whose regioselectivities have been explained by several different models over the past few decades. Our efforts show that aryne distortion, rather than steric factors or charge distribution, are responsible for the regioselectivities observed in 3-haloaryne trapping experiments. We also demonstrate the synthetic utility of 3-halobenzynes for the efficient synthesis of functionalized heterocycles, using a tandem aryne-trapping/cross-coupling sequence involving 3-chlorobenzyne.
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Affiliation(s)
| | | | - Neil K. Garg
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - K. N. Houk
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
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272
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Chiranjeevi B, Vinayak B, Parsharamulu T, PhaniBabu VS, Jagadeesh B, Sridhar B, Chandrasekharam M. Iron(III)-Catalyzed C-H Functionalization:ortho-Benzoyloxylation ofN,N-Dialkylanilines and Its Application to 1,4-Benzoxazepines. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402751] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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273
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Tobisu M, Yasutome A, Kinuta H, Nakamura K, Chatani N. 1,3-Dicyclohexylimidazol-2-ylidene as a superior ligand for the nickel-catalyzed cross-couplings of aryl and benzyl methyl ethers with organoboron reagents. Org Lett 2014; 16:5572-5. [PMID: 25325885 DOI: 10.1021/ol502583h] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A new catalytic system has been developed involving the use of Ni(cod)2 in conjunction with 1,3-dicyclohexylimidazol-2-ylidene for the cross-coupling of aryl and benzyl methyl ethers with organoboron reagents. This method not only allows for the use of readily available methyl ethers as halide surrogates but also provides a functional group tolerant method for the late-stage derivatization of complex molecules.
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Affiliation(s)
- Mamoru Tobisu
- Department of Applied Chemistry, Faculty of Engineering, Osaka University , Suita, Osaka 565-0871, Japan
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274
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Yang X, Wang ZX. Mono- and Dinuclear Pincer Nickel Catalyzed Activation and Transformation of C–Cl, C–N, and C–O Bonds. Organometallics 2014. [DOI: 10.1021/om500452c] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Xia Yang
- CAS Key
Laboratory of Soft
Matter Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
| | - Zhong-Xia Wang
- CAS Key
Laboratory of Soft
Matter Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
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275
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Yin J, Bai Y, Mao M, Zhu G. Silver-catalyzed regio- and stereoselective addition of carboxylic acids to ynol ethers. J Org Chem 2014; 79:9179-85. [PMID: 25188878 DOI: 10.1021/jo501615a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A silver-catalyzed trans addition of carboxylic acids to ynol ethers is described. The reaction has a broad scope with respect to carboxylic acids and ynol ethers, delivering (Z)-α-alkoxy enol esters in good yields with excellent regio- and stereoselectivity. Meaningfully, the Ni-catalyzed selective coupling of alkenyl C-OPiv bonds of (Z)-α-alkoxy enol esters with boronic acids enables a convenient route to the access of (E)-enol ethers. As such, the two-step procedure, consisted of a hydrocarboxylation and a subsequent Suzuki-Miyaura coupling, offers a formal trans hydroarylation of ynol ethers, thus providing a good complementary method to our previous report.
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Affiliation(s)
- Jing Yin
- Department of Chemistry, Zhejiang Normal University , 688 Yingbin Road, Jinhua 321004, China
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276
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Iranpoor N, Panahi F. Direct Nickel-Catalyzed Amination of PhenolsviaCO Bond Activation using 2,4,6-Trichloro-1,3,5-triazine (TCT) as Reagent. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400460] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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277
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Fine Nathel NF, Kim J, Hie L, Jiang X, Garg NK. Nickel-Catalyzed Amination of Aryl Chlorides and Sulfamates in 2-Methyl-THF. ACS Catal 2014; 4:3289-3293. [PMID: 25243095 PMCID: PMC4165539 DOI: 10.1021/cs501045v] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 08/19/2014] [Indexed: 01/18/2023]
Abstract
The nickel-catalyzed amination of aryl O-sulfamates and chlorides using the green solvent 2-methyl-THF is reported. This methodology employs the commercially available and air-stable precatalyst NiCl2(DME), is broad in scope, and provides access to aryl amines in synthetically useful yields. The utility of this methodology is underscored by examples of gram-scale couplings conducted with catalyst loadings as low as 1 mol % nickel. Moreover, the nickel-catalyzed amination described is tolerant of heterocycles and should prove useful in the synthesis of pharmaceutical candidates and other heteroatom-containing compounds.
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Affiliation(s)
- Noah F. Fine Nathel
- Department
of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Junyong Kim
- Department
of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Liana Hie
- Department
of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Xingyu Jiang
- Department
of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Neil K. Garg
- Department
of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
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278
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Abstract
Heterocyclic arynes have long been targeted as potential tools for the synthesis of substituted heterocycles. Recent advances have led to an improved understanding of the factors that determine regioselectivity in reactions of these strained intermediates and, in turn, the aryne distortion model. This paper highlights the use of this predictive model to enable the use of heterocyclic arynes, such as indolynes and pyridynes, in chemical synthesis.
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279
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Affiliation(s)
- Chang-Liang Sun
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Green Chemistry Center, Peking University , 202 Chengfu Road, 098#, Beijing 100871, China
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280
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Sravani C, Venkatesh S, Vijayakrishna K, Sivaramakrishna A. Alkenyl complexes of platinum group metals: a platform for diverse reactivity patterns. Appl Organomet Chem 2014. [DOI: 10.1002/aoc.3179] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Chinduluri Sravani
- Chemistry Division, School of Advanced Sciences; VIT University; Vellore 632 014 Tamil Nadu India
| | - Sadhana Venkatesh
- Chemistry Division, School of Advanced Sciences; VIT University; Vellore 632 014 Tamil Nadu India
| | - Kari Vijayakrishna
- Chemistry Division, School of Advanced Sciences; VIT University; Vellore 632 014 Tamil Nadu India
| | - Akella Sivaramakrishna
- Chemistry Division, School of Advanced Sciences; VIT University; Vellore 632 014 Tamil Nadu India
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281
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Tasker SZ, Standley EA, Jamison TF. Recent advances in homogeneous nickel catalysis. Nature 2014; 509:299-309. [PMID: 24828188 DOI: 10.1038/nature13274] [Citation(s) in RCA: 1528] [Impact Index Per Article: 152.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Accepted: 03/18/2014] [Indexed: 01/19/2023]
Abstract
Tremendous advances have been made in nickel catalysis over the past decade. Several key properties of nickel, such as facile oxidative addition and ready access to multiple oxidation states, have allowed the development of a broad range of innovative reactions. In recent years, these properties have been increasingly understood and used to perform transformations long considered exceptionally challenging. Here we discuss some of the most recent and significant developments in homogeneous nickel catalysis, with an emphasis on both synthetic outcome and mechanism.
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Affiliation(s)
- Sarah Z Tasker
- 1] Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA [2]
| | - Eric A Standley
- 1] Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA [2]
| | - Timothy F Jamison
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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282
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Murai M, Origuchi K, Takai K. Bismuth(III)-catalyzed dehydrative etherification and thioetherification of phenolic hydroxy groups. Org Lett 2014; 16:3828-31. [PMID: 25007290 DOI: 10.1021/ol501744g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Use of a bismuth catalyst allowed efficient dehydrative substitution of phenolic hydroxy groups with alcohols and thiols to form C-O and C-S bonds. The reaction required equimolar amounts of two readily available substrates that generated H(2)O as the only byproduct. The relatively mild reaction conditions were compatible with the functional groups selected, and provided excellent chemoselectivity.
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Affiliation(s)
- Masahito Murai
- Division of Chemistry and Biotechnology, Graduate School of Natural Science and Technology and ‡Research Center of New Functional Materials for Energy Production, Storage and Transport, Okayama University , 3-1-1 Tsushimanaka, Kita-ku, Okayama, Okayama Prefecture 700-8530, Japan
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283
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Chen L, Lang H, Fang L, Zhu M, Liu J, Yu J, Wang L. Nickel-Catalyzed One-Pot Suzuki-Miyaura Cross-Coupling of Phenols and Arylboronic Acids Mediated byN,N-Ditosylaniline. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402475] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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284
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Ferguson DM, Rudolph SR, Kalyani D. Palladium-Catalyzed Intra- and Intermolecular C-H Arylation Using Mesylates: Synthetic Scope and Mechanistic Studies. ACS Catal 2014; 4:2395-2401. [PMID: 25068072 PMCID: PMC4105186 DOI: 10.1021/cs500587b] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 06/10/2014] [Indexed: 01/17/2023]
Abstract
This paper describes the development of Pd-catalyzed inter- and intramolecular direct arylation using mesylates. Furthermore, a sequential mesylation/arylation protocol using phenols as substrates is described. These transformations are general with respect to the electronics of the C-H substrates and allow for the synthesis of diverse heterocyclic motifs in good yields. Both arenes and heteroarenes efficiently participate in these reactions. Preliminary mechanistic studies are presented for both inter- and intramolecular arylations.
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Affiliation(s)
- Devin M. Ferguson
- Department of Chemistry, St. Olaf College, 1520 St. Olaf Ave, Northfield, Minnesota 55057, United States
| | - Stacey R. Rudolph
- Department of Chemistry, St. Olaf College, 1520 St. Olaf Ave, Northfield, Minnesota 55057, United States
| | - Dipannita Kalyani
- Department of Chemistry, St. Olaf College, 1520 St. Olaf Ave, Northfield, Minnesota 55057, United States
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285
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Suzuki–Miyaura cross-coupling reaction of 1,2-oxaborol-2(5H)-ols with carboxylic anhydrides: a new method to furans. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.05.106] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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286
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McAtee JR, Martin SES, Cinderella AP, Reid WB, Johnson KA, Watson DA. The First Example of Nickel-Catalyzed Silyl-Heck Reactions: Direct Activation of Silyl Triflates Without Iodide Additives. Tetrahedron 2014; 70:4250-4256. [PMID: 24914247 DOI: 10.1016/j.tet.2014.03.021] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
For the first time, nickel-catalyzed silyl-Heck reactions are reported. Using simple phosphine-supported nickel catalysts, direct activation of silyl triflates has been achieved. These results contrast earlier palladium-catalyzed systems, which require iodide additives to activate silyl-triflates. These nickel-based catalysts exhibit good functional group tolerance in the preparation of vinyl silanes, and unlike earlier systems, allows for the incorporation of trialkylsilanes larger than Me3Si.
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Affiliation(s)
- Jesse R McAtee
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716
| | - Sara E S Martin
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716
| | - Andrew P Cinderella
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716
| | - William B Reid
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716
| | - Keywan A Johnson
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716
| | - Donald A Watson
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716
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287
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Iwasaki T, Miyata Y, Akimoto R, Fujii Y, Kuniyasu H, Kambe N. Diarylrhodates as Promising Active Catalysts for the Arylation of Vinyl Ethers with Grignard Reagents. J Am Chem Soc 2014; 136:9260-3. [DOI: 10.1021/ja5043534] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takanori Iwasaki
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yoshinori Miyata
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Ryo Akimoto
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yuuki Fujii
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Hitoshi Kuniyasu
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Nobuaki Kambe
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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288
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Moragas T, Correa A, Martin R. Metal-Catalyzed Reductive Coupling Reactions of Organic Halides with Carbonyl-Type Compounds. Chemistry 2014; 20:8242-58. [DOI: 10.1002/chem.201402509] [Citation(s) in RCA: 333] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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289
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Zhao Y, Snieckus V. Beyond Directed Ortho Metalation: Ruthenium-Catalyzed Amide-Directed CAr–N Activation/C–C Coupling Reaction of Anthranilamides with Organoboronates. Org Lett 2014; 16:3200-3. [DOI: 10.1021/ol501180q] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Yigang Zhao
- Department
of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario K7L
3N6, Canada
| | - Victor Snieckus
- Department
of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario K7L
3N6, Canada
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290
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Li X, Xu Y, Wu W, Jiang C, Qi C, Jiang H. Copper-catalyzed aerobic oxidative N-S bond functionalization for C-S bond formation: regio- and stereoselective synthesis of sulfones and thioethers. Chemistry 2014; 20:7911-5. [PMID: 24860978 DOI: 10.1002/chem.201402815] [Citation(s) in RCA: 189] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 04/25/2014] [Indexed: 12/31/2022]
Abstract
A regio- and stereoselective synthesis of sulfones and thioethers by means of Cu(I)-catalyzed aerobic oxidative N-S bond cleavage of sulfonyl hydrazides, followed by cross-coupling reactions with alkenes and aromatic compounds to form the C sp 2-S bond, is described herein. N2 and H2O are the byproducts of this transformation, thus offering an environmentally benign process with a wide range of potential applications in organic synthesis and medicinal chemistry.
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Affiliation(s)
- Xianwei Li
- School of Chemistry and Chemical Engineering, South China University of Technology
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291
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Takise R, Muto K, Yamaguchi J, Itami K. Nickel-Catalyzed α-Arylation of Ketones with Phenol Derivatives. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403823] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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292
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Takise R, Muto K, Yamaguchi J, Itami K. Nickel-catalyzed α-arylation of ketones with phenol derivatives. Angew Chem Int Ed Engl 2014; 53:6791-4. [PMID: 24845077 DOI: 10.1002/anie.201403823] [Citation(s) in RCA: 145] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Indexed: 11/10/2022]
Abstract
The nickel-catalyzed α-arylation of ketones with readily available phenol derivatives (esters and carbamates) provides access to useful α-arylketones. For this transformation, 3,4-bis(dicyclohexylphosphino)thiophene (dcypt) was identified as a new, enabling, air-stable ligand for this transformation. The intermediate of an assumed C-O oxidative addition was isolated and characterized by X-ray crystal-structure analysis.
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Affiliation(s)
- Ryosuke Takise
- Institute of Transformative Bio-Molecules (WPI-ITbM) an Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602 (Japan)
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293
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Abe T, Mino T, Watanabe K, Yagishita F, Sakamoto M. Suzuki-Miyaura Coupling of Aryl Sulfonates with Arylboronic Acids Using a Morpholine-Pd(OAc)2Catalyst System. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402120] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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294
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Zhao Y, Snieckus V. CH Activation by Amide Chelation Control: Ruthenium‐ Catalyzed Direct Synthesis of 2‐Aryl‐3‐furanamides. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400147] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yigang Zhao
- Department of Chemistry, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Victor Snieckus
- Department of Chemistry, Queen's University, Kingston, ON K7L 3N6, Canada
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295
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Tobisu M, Nakamura K, Chatani N. Nickel-Catalyzed Reductive and Borylative Cleavage of Aromatic Carbon–Nitrogen Bonds in N-Aryl Amides and Carbamates. J Am Chem Soc 2014; 136:5587-90. [DOI: 10.1021/ja501649a] [Citation(s) in RCA: 149] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Mamoru Tobisu
- ESICB, Kyoto University, Katsura, Kyoto 615-8510, Japan
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296
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Morofuji T, Shimizu A, Yoshida JI. Direct C–N Coupling of Imidazoles with Aromatic and Benzylic Compounds via Electrooxidative C–H Functionalization. J Am Chem Soc 2014; 136:4496-9. [DOI: 10.1021/ja501093m] [Citation(s) in RCA: 155] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tatsuya Morofuji
- Department
of Synthetic Chemistry
and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Akihiro Shimizu
- Department
of Synthetic Chemistry
and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Jun-ichi Yoshida
- Department
of Synthetic Chemistry
and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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297
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Huo X, Quan M, Yang G, Zhao X, Liu D, Liu Y, Zhang W. Hydrogen-Bond-Activated Palladium-Catalyzed Allylic Alkylation via Allylic Alkyl Ethers: Challenging Leaving Groups. Org Lett 2014; 16:1570-3. [DOI: 10.1021/ol5000988] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Xiaohong Huo
- School of Pharmacy and ‡School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Mao Quan
- School of Pharmacy and ‡School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Guoqiang Yang
- School of Pharmacy and ‡School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Xiaohu Zhao
- School of Pharmacy and ‡School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Delong Liu
- School of Pharmacy and ‡School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Yangang Liu
- School of Pharmacy and ‡School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Wanbin Zhang
- School of Pharmacy and ‡School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
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298
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Long C, Zhao L, You JS, Wang MX. Copper(I)-Catalyzed Halogenation and Acyloxylation of Aryl Triflates through a Copper(I)/Copper(III) Catalytic Cycle. Organometallics 2014. [DOI: 10.1021/om500046g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Chao Long
- Key Laboratory of Green Chemistry and Technology
(MOE), College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Liang Zhao
- Key Laboratory of Organic Phosphorus Chemistry
and Chemistry Biology (MOE), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Jing-Song You
- Key Laboratory of Green Chemistry and Technology
(MOE), College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Mei-Xiang Wang
- Key Laboratory of Organic Phosphorus Chemistry
and Chemistry Biology (MOE), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
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299
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Abstract
A Ni/Cu-catalyzed silylation of unactivated C-O electrophiles derived from phenols or benzyl alcohols is described. This transformation is characterized by its wide scope and mild conditions, providing a direct access to synthetically versatile silylated compounds. The protocol allows for the coupling of C(sp(2))-O and even C(sp(3))-O bonds with similar efficiency.
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Affiliation(s)
- Cayetana Zarate
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007, Tarragona, Spain
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300
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Quan ZJ, Lv Y, Jing FQ, Jia XD, Huo CD, Wang XC. Chemoselective Carbon-Carbon Cross-CouplingviaPalladium-Catalyzed Copper-Mediated CS Cleavage of Disulfides. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300776] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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