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1
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Zhang W, Yang W, Zhao W. Lewis acid-promoted site-selective cyanation of phenols. Org Biomol Chem 2021; 18:4604-4609. [PMID: 32515758 DOI: 10.1039/d0ob00737d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
An efficient Lewis acid-promoted site-selective electrophilic cyanation of 3-substituted and 3,4-disubstituted phenols has been developed. The cyanation reactions using MeSCN as the cyanating reagent proceeded efficiently to afford a wide range of 2-hydroxybenzonitriles with high efficiency and excellent regioselectivity. This protocol could provide a practical method for the synthesis and modification of biologically active molecules.
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Affiliation(s)
- Wu Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P. R. China.
| | - Wen Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P. R. China.
| | - Wanxiang Zhao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P. R. China.
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2
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Zhang W, Li T, Wang Q, Zhao W. Lewis Acid‐Mediated Cyanation of Phenols Using
N
‐Cyano‐
N
‐phenyl‐
p‐
toluenesulfonamide. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900813] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Wu Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical EngineeringHunan University, Changsha Hunan 410082 People's Republic of China
| | - Tao Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical EngineeringHunan University, Changsha Hunan 410082 People's Republic of China
| | - Qingli Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical EngineeringHunan University, Changsha Hunan 410082 People's Republic of China
| | - Wanxiang Zhao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical EngineeringHunan University, Changsha Hunan 410082 People's Republic of China
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3
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Transformation of aromatic bromides into aromatic nitriles with n-BuLi, pivalonitrile, and iodine under metal cyanide-free conditions. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130550] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Komiyama M, Tsuchiya H, Teramoto M, Yajima N, Kurokawa M, Minamizono K, Tsuchiya N, Kato Y, Sato Y, Dohi M. Process Development of Febuxostat Using Palladium- and Copper-Catalyzed C–H Arylation. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.8b00164] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Masato Komiyama
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Hideyoshi Tsuchiya
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Mitsuru Teramoto
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Naoki Yajima
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Masayuki Kurokawa
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Kunio Minamizono
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Naoki Tsuchiya
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Yoshiaki Kato
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Yoshinori Sato
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Masahiko Dohi
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
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5
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Affiliation(s)
- Guobing Yan
- Department of Chemistry; Lishui University; Lishui Zhejiang 323000 People's Republic of China
| | - Yan Zhang
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education; College of Chemistry; Peking University; Beijing 100871 People's Republic of China
| | - Jianbo Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education; College of Chemistry; Peking University; Beijing 100871 People's Republic of China
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6
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Ezawa M, Togo H. One‐Pot Preparation of C
1
‐Homologated Aliphatic Nitriles from Aldehydes through a Wittig Reaction under Metal‐Cyanide‐Free Conditions. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700277] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Masatoshi Ezawa
- Graduate School of Science Chiba University Yayoi‐cho 1‐33 263‐8522 Inage‐ku, Chiba Japan
| | - Hideo Togo
- Graduate School of Science Chiba University Yayoi‐cho 1‐33 263‐8522 Inage‐ku, Chiba Japan
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7
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Shimokawa S, Kawagoe Y, Moriyama K, Togo H. Direct Transformation of Ethylarenes into Primary Aromatic Amides with N-Bromosuccinimide and I2–Aqueous NH3. Org Lett 2016; 18:784-7. [DOI: 10.1021/acs.orglett.6b00048] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shohei Shimokawa
- Graduate
School of Science, Chiba University, Yayoi-cho 1-33,
Inage-ku, Chiba 263-8522, Japan
| | - Yuhsuke Kawagoe
- Graduate
School of Science, Chiba University, Yayoi-cho 1-33,
Inage-ku, Chiba 263-8522, Japan
| | - Katsuhiko Moriyama
- Graduate
School of Science, Chiba University, Yayoi-cho 1-33,
Inage-ku, Chiba 263-8522, Japan
- Molecular
Chirality Research Center, Chiba University, Yayoi-cho 1-33,
Inage-ku, Chiba 263-8522, Japan
| | - Hideo Togo
- Graduate
School of Science, Chiba University, Yayoi-cho 1-33,
Inage-ku, Chiba 263-8522, Japan
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8
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Nakai Y, Moriyama K, Togo H. One-Pot Transformation of Aliphatic Carboxylic Acids intoN-Alkylsuccinimides with NIS and NCS/NaI. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501315] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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9
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Dickinson SR, Müller P, Tanski JM. Crystal structure of 3-bromo-2-hy-droxy-benzo-nitrile. Acta Crystallogr E Crystallogr Commun 2015; 71:o523-4. [PMID: 26279943 PMCID: PMC4518954 DOI: 10.1107/s2056989015011974] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 06/22/2015] [Indexed: 11/10/2022]
Abstract
The crystal structure of the title compound, C7H4BrNO, has been determined, revealing a partial mol-ecular packing disorder such that a 180° rotation of the mol-ecule about the phenol C-O bond results in disorder of the bromine and nitrile groups. The disorder has been parameterized as a disorder of only the bromine and nitrile substituents on a unique phenol ring. An intra-molecular O-H⋯Br contact occurs. In the crystal, O-H⋯Br/O-H⋯Nnitrile hydrogen bonding is present between the disordered bromine and nitrile substituents and the phenol group, forming a spiral chain about a twofold screw axis extending parallel to the b-axis direction. Within this spiral chain, the mol-ecules also inter-act, forming offset face-to-face π-stacking inter-actions with plane-to-centroid distance of 3.487 (1) Å.
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Affiliation(s)
- Sean R. Dickinson
- Department of Chemistry, Vassar College, Poughkeepsie, NY 12604, USA
| | - Peter Müller
- X-Ray Diffraction Facility, MIT Department of Chemistry, 77 Massachusetts Avenue, Building 2, Room 325, Cambridge, MA, 02139-4307, USA
| | - Joseph M. Tanski
- Department of Chemistry, Vassar College, Poughkeepsie, NY 12604, USA
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