1
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Tsybulin SV, Kaplanskiy MV, Antonov AS. Transition-Metal-Free Synthesis of 2-Substituted Benzo[cd]Indoles via the Reaction of 1-Halo-8-lithionaphthalenes with Nitriles. Chemistry 2024; 30:e202303768. [PMID: 38197193 DOI: 10.1002/chem.202303768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 01/11/2024]
Abstract
A simple and effective organolithium approach to the synthesis of 2-substituted benzo[cd]indoles from peri-dihalonaphthalenes and nitriles has been developed. The reaction proceeds via a surprisingly easy intramolecular aromatic nucleophilic substitution facilitated by the "clothespin effect". The discovered transformation provides good isolated yields, allows usage of an extensive range of nitriles, and demonstrates a good substituents tolerance. UV-absorption and NMR spectra of the obtained benzo[cd]indoles and their protonated forms demonstrated exclusive protonation to the indole nitrogen atom even in the presence of two NMe2 groups in positions 5 and 6 (i. e. "proton sponge" moiety).
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Affiliation(s)
- Semyon V Tsybulin
- St. Petersburg State University, 198504, St. Petersburg, Russian Federation
| | - Mark V Kaplanskiy
- St. Petersburg State University, 198504, St. Petersburg, Russian Federation
| | - Alexander S Antonov
- Institute of Organic Chemistry, University of Regensburg, D-93053, Regensburg, Germany
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2
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Dalal A, Bodak S, Babu SA. Picolinamide-assisted ortho-C-H functionalization of pyrenylglycine derivatives using aryl iodides. Org Biomol Chem 2024; 22:1279-1298. [PMID: 38258893 DOI: 10.1039/d3ob01731a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Chemical transformations involving the pyrenylglycine motif (an unnatural amino acid) and practical methods toward it are seldom known. This work aimed at developing a method for synthesizing novel pyrenylglycine (pyrene-based glycine) unnatural amino acid derivatives. To realize this, initially, a new pyrenylglycine substrate possessing the picolinamide moiety was assembled via the Ugi multicomponent reaction. The picolinamide moiety linked to amine substrates is a well-known bidentate directing group for accomplishing the site-selective γ-C-H functionalization of amines. Subsequently, it was aimed at using a Pd(II)-catalyzed bidentate directing group-aided γ-C-H arylation strategy for generating a wide range of unprecedented examples of C(2)-H arylated pyrenylglycines. Accordingly, pyrenylglycine possessing the picolinamide moiety was subjected to Pd(II)-catalyzed C(2)-H arylation in the non-K-region to afford a library of C(2)-arylated pyrenylglycines (π-extended pyrenes). Additionally, pyrenylglycine-based small peptides were assembled using C(2)-arylated pyrenylglycines. The X-ray structure of a representative compound was obtained, which corroborated the structure of pyrenylglycine and the regioselectivity of C(2)-H arylation of the pyrene in the non-K-region.
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Affiliation(s)
- Arup Dalal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
| | - Subhankar Bodak
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
| | - Srinivasarao Arulananda Babu
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
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3
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Huang PF, Fu JL, Huang JJ, Xiong BQ, Tang KW, Liu Y. Photoredox radical cyclization reaction of o-vinylaryl isocyanides with acyl chlorides to access 2,4-disubstituted quinolines. Org Biomol Chem 2024; 22:513-520. [PMID: 38131384 DOI: 10.1039/d3ob01915b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
We herein report an efficient photoredox radical cyclization reaction of o-vinylaryl isocyanides with acyl chlorides to access a wide range of 2,4-disubstituted quinolines. Preliminary mechanism experiment results suggested that this reaction was initiated by an acyl radical generated from acyl chlorides through a single-electron-transfer (SET) process. This transformation showed good substrate suitability and functional group compatibility at room temperature.
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Affiliation(s)
- Peng-Fei Huang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Jia-Le Fu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Jia-Jing Huang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
| | - Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China.
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4
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Hajra AK, Ghosh P, Paul P, Kundu M, Das S. Copper(II)-Mediated, Site-Selective C(sp 2)-H Sulfonamidation of 1-Naphthylamines. J Org Chem 2023. [PMID: 38048479 DOI: 10.1021/acs.joc.3c01852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
An operationally simple and efficient protocol for copper(II)-mediated, picolinamido-directed C8-H sulfonamidation of 1-naphthylamine derivatives with various sulfonamides has been developed. Remarkably, this cross-dehydrogenative C-H/H-N coupling reaction exhibits a broad substrate scope with excellent functional group tolerance, is scalable, and enables an expeditious route to a library of unsymmetrical N-arylated sulfonamides in good to excellent yields with exclusive site selectivity.
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Affiliation(s)
- Arun Kumar Hajra
- TCG Lifesciences Pvt. Ltd., BN-7, Sector-V, Salt Lake City,Kolkata700091,India
- Department of Chemistry, University of North Bengal, Darjeeling734013,India
| | - Prasanjit Ghosh
- Department of Chemistry, University of North Bengal, Darjeeling734013,India
| | - Priyanka Paul
- TCG Lifesciences Pvt. Ltd., BN-7, Sector-V, Salt Lake City,Kolkata700091,India
| | - Mrinalkanti Kundu
- TCG Lifesciences Pvt. Ltd., BN-7, Sector-V, Salt Lake City,Kolkata700091,India
| | - Sajal Das
- Department of Chemistry, University of North Bengal, Darjeeling734013,India
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5
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Silver(I)-Catalyzed C4-H Amination of 1-Naphthylamine Derivatives with Azodicarboxylates at Room Temperature. Catalysts 2022. [DOI: 10.3390/catal12091006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A highly facile and efficient protocol for silver(I)-catalyzed C4–H amination of 1-naphthylamine derivatives with readily available azodicarboxylates utilizing picolinamide as a bidentate directing group is reported, providing an alternative strategy for the synthesis of 4-aminated 1-naphthylamine derivatives. The reaction proceeded smoothly in acetone at room temperature undergoing a self-redox process under the base and external oxidant-free conditions, affording the desired products with good to excellent yields.
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6
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Park J, Son J. Cobalt‐Catalyzed C(sp2)–O Bond Formation by Directing Group Assisted C–H Activation. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jinhwan Park
- Dong-A University Chemical Engineering KOREA, REPUBLIC OF
| | - Jongwoo Son
- Dong-A University Chemistry 550beon-gil, Nakdong-daero 49315 Busan KOREA, REPUBLIC OF
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7
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Jain P, Kumar N, Avasare V. A Shuttle Catalysis: Elucidating a True Reaction Mechanism Involved in the Palladium Xantphos-Assisted Transposition of Aroyl Chloride and Aryl Iodide Functional Groups. J Org Chem 2022; 87:12547-12557. [PMID: 35584056 DOI: 10.1021/acs.joc.2c00193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A thorough DFT study was performed to unravel the true mechanism involved in the Pd(0)-catalyzed functional group transposition between aroyl chlorides and aryl iodides. Two different experimental groups proposed different mechanisms for the functional group transposition reaction. A careful assessment of experimental findings and thorough computational studies endorsed that the functional group transposition proceeds via phosphonium salt formation and ligand-enabled C-P bond metathesis, leading to the formation of the PhI and the intermediate 2. After the formation of the intermediate 2, the transposition of functional groups takes place through the interpalladium ligand exchange mechanism, where two palladium centers act as shuttle catalysts. In short, both C-P bond metathesis and interpalladium ligand exchange steps are crucial in the functional group transposition mechanism.
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Affiliation(s)
- Pooja Jain
- Department of Chemistry, Indian Institution of Technology Bombay, Mumbai, Maharashtra 400076, India
| | - Nitesh Kumar
- Department of Chemistry, Sir Parashurambhau College, Pune, Maharashtra 411030, India
| | - Vidya Avasare
- Department of Chemistry, Sir Parashurambhau College, Pune, Maharashtra 411030, India.,Department of Chemistry, Ashoka University, Sonipat, Haryana 131029, India
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8
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Fu Y, Chen CH, Huang MG, Tao JY, Peng X, Xu HB, Liu YJ, Zeng MH. Remote C5-Selective Functionalization of Naphthalene Enabled by P–Ru–C Bond-Directed δ-Activation. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00839] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Yueliuting Fu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Cui-Hong Chen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Mao-Gui Huang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Jun-Yang Tao
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Xu Peng
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Hai-Bing Xu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Yue-Jin Liu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Ming-Hua Zeng
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
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9
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Martínez-Flores S, Mujica-Martinez CA, Polindara-García LA. Pd(II)‐Catalyzed C(sp2/sp3)‐H Arylation of Aryl‐glycinamide Derivatives Using Picolinamide as Directing Group. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sebastián Martínez-Flores
- Universidad Nacional Autónoma de México: Universidad Nacional Autonoma de Mexico Instituto de Química Ciudad Universitaria 04310 Ciudad de Mexico MEXICO
| | | | - Luis Angel Polindara-García
- Universidad Nacional Autonoma de Mexico Chemistry Institute Ciudad Universitaria 04510 Ciudad de Mexico MEXICO
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10
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Zhang ZZ, Li Y, Shi BF. Cp*Rh(III)-catalyzed and solvent-controlled tunable [4+1]/[4+3] annulation for the divergent assembly of dihydrobenzo[cd]indoles and dihydronaphtho[1,8-bc]azepines. Org Chem Front 2022. [DOI: 10.1039/d2qo00073c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chemo- and regioselectively Cp*Rh-catalyzed tunable [4+1]/[4+3] cyclization of free 1-naphthylamines with propargyl carbonates has been accomplished by regulating the reaction solvents. The reaction allowed a variety of dihydrobenzo[cd]indoles and dihydronaphtho[1,8-bc]azepines...
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11
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Yao Y, Su S, Wu N, Wu W, Jiang H. The cobalt( ii)-catalyzed acyloxylation of picolinamides with bifunctional silver carboxylate via C–H bond activation. Org Chem Front 2022. [DOI: 10.1039/d2qo01131j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The cobalt(ii)-catalyzed C–H bond acyloxylation of picolinamides with bifunctional silver carboxylate has been developed. The mild and practical esterification provides an atom-economic route to access to polysubstituted naphthalene compounds.
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Affiliation(s)
- Yongqi Yao
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510641 Guangzhou, People's Republic of China
| | - Shaoting Su
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510641 Guangzhou, People's Republic of China
| | - Nan Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510641 Guangzhou, People's Republic of China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510641 Guangzhou, People's Republic of China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510641 Guangzhou, People's Republic of China
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12
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Mao Y, Jiang J, Yuan D, Chen X, Wang Y, Hu L, Zhang Y. Overcoming peri- and ortho-selectivity in C–H methylation of 1-naphthaldehydes by a tunable transient ligand strategy. Chem Sci 2022; 13:2900-2908. [PMID: 35382469 PMCID: PMC8906006 DOI: 10.1039/d1sc05899a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 01/03/2022] [Indexed: 01/07/2023] Open
Abstract
This work provides a highly regioselective peri- and ortho-C–H methylation of 1-naphthaldehyde by using a transient ligand strategy, enabling practical synthesis of multi-substituted naphthalene-based bioactive molecules and natural products.
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Affiliation(s)
- Yujian Mao
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing, Jiangsu, 210023, China
| | - Jing Jiang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing, Jiangsu, 210023, China
| | - Dandan Yuan
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing, Jiangsu, 210023, China
| | - Xiuzhen Chen
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing, Jiangsu, 210023, China
| | - Yanan Wang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing, Jiangsu, 210023, China
| | - Lihong Hu
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing, Jiangsu, 210023, China
| | - Yinan Zhang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing, Jiangsu, 210023, China
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13
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Wang C, Dong S, Zhu T, Liu Y, Wu Z, Feng R. Cobalt-Catalyzed Decarbonylative C(8)-Acyloxylation of 1-Naphthalamine Derivatives with α-Oxocarboxylic Acids. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202111038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Cao L, Wang P, Sun S, Yang F, Wu Y. Ru(III)-Catalyzed C4-H Bond Cyanoalkoxylation of 1-Naphthylamine Derivatives with Azobisisobutyronitrile. Org Chem Front 2022. [DOI: 10.1039/d2qo00572g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and efficient protocol for ruthenium-catalyzed C4-H bond cyanoalkoxylation of 1-naphthylamine derivatives with AIBN was developed under an oxygen atmosphere. This reaction provides an efficient method for preparing cyano...
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15
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Xu Z, Hu Y, Wang L, Sun M, Li P. Merging cobalt and photoredox catalysis for the C8-H alkoxylation of 1-naphthylamine derivatives with alcohols. Org Biomol Chem 2021; 19:10112-10119. [PMID: 34757369 DOI: 10.1039/d1ob01721g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A combined cobalt and photoredox catalysis system to realize the C8-H alkoxylation of 1-naphthylamine derivatives with alcohols was developed. Using commercially available alkyl alcohols as raw materials and Co(OAc)2 and rose bengal as catalysts, 1-naphthylamine derivatives reacted with alcohols to generate the corresponding C8-H alkoxylation products in good yields.
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Affiliation(s)
- Zhaoliang Xu
- Department of Chemistry; Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui, 235000, P. R. China. .,Advanced Research Institute and Department of Chemistry, Taizhou University, Taizhou, Zhejiang, 318000, P. R. China.
| | - Yu Hu
- Department of Chemistry; Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui, 235000, P. R. China.
| | - Lei Wang
- Department of Chemistry; Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui, 235000, P. R. China. .,Advanced Research Institute and Department of Chemistry, Taizhou University, Taizhou, Zhejiang, 318000, P. R. China. .,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, P. R. China
| | - Mingli Sun
- Department of Chemistry; Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui, 235000, P. R. China. .,Advanced Research Institute and Department of Chemistry, Taizhou University, Taizhou, Zhejiang, 318000, P. R. China.
| | - Pinhua Li
- Department of Chemistry; Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui, 235000, P. R. China. .,Department of Chemistry, Anhui Polytechnic University, Wuhu, Anhui, 241000, P. R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, P. R. China
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16
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Pei M, Zu C, Liu Z, Yang F, Wu Y. Merging Photoredox Catalysis with Transition Metal Catalysis: Direct C4-H Sulfamidation of 1-Naphthylamine Derivatives. J Org Chem 2021; 86:11324-11332. [PMID: 34387490 DOI: 10.1021/acs.joc.1c00635] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A mild and efficient protocol for the copper(I)-catalyzed C4-H sulfamidation of 1-naphthylamine derivatives with diphenylsulfonimide (NHSI) was explored at room temperature, affording the desire produces in moderate to good yields. The control experiments indicated that this visible-light-promoted reaction might proceed via a single-electron-transfer process. In addition, preliminary DFT studies for the intermediates in the catalytic cycle were also explored, indicating that the C4 site in the naphthyl ring is the most likely electrophilic reactive site and providing some exact basis for the plausible mechanism.
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Affiliation(s)
- Mengxue Pei
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Conghui Zu
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Zhen Liu
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Fan Yang
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yangjie Wu
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
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17
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Zhao L, Sun M, Yang F, Wu Y. Silver(I) Promoted the C4-H Bond Phosphonation of 1-Naphthylamine Derivatives with H-Phosphonates. J Org Chem 2021; 86:11519-11530. [PMID: 34383506 DOI: 10.1021/acs.joc.1c00971] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A simple and efficient protocol for silver-promoted direct C-H phosphonation of 1-naphthylamine derivatives with H-phosphonates was described. This reaction proceeded smoothly for 1-naphthylamine derivatives at the C4 site, providing a facile and efficient route to 4-phosphonated 1-naphthylamine derivatives. This phosphonation could tolerate a diverse type of functional groups at the pyridinyl and naphthyl moieties. Further functionalization of the phosphonated product was also explored at the C2 and C8 sites, such as fluoridation, methylation, methoxylation, and amination. In addition, DFT studies of the reaction intermediate showed that the most electrophilic reactive site is at the C4 site in the naphthyl ring.
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Affiliation(s)
- Lixiao Zhao
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Mengmeng Sun
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Fan Yang
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yangjie Wu
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
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18
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Yamazaki K, Rej S, Ano Y, Chatani N. Mechanism and Origins of Regiochemical Control in Rh(III)-Catalyzed Oxidative C–H Alkenylation and Coupling Sequence of Unprotected 1-Naphthylamines with α,β-Unsaturated Esters. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ken Yamazaki
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Supriya Rej
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yusuke Ano
- 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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19
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Sahoo T, Sarkar S, Ghosh SC. Copper(II) mediated C-8 amination of 1-naphthylamide derivatives with acyclic and cyclic amines. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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20
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Jiang J, Yuan D, Ma C, Song W, Lin Y, Hu L, Zhang Y. Palladium-Catalyzed Regiospecific peri- and ortho-C-H Oxygenations of Polyaromatic Rings Mediated by Tunable Directing Groups. Org Lett 2021; 23:279-284. [PMID: 33352055 DOI: 10.1021/acs.orglett.0c03701] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient divergent approach of Pd-catalyzed C-H oxygenation of polyaromatic rings is described. Reversible directing groups enable regiospecific peri- and ortho-oxygenation to readily access a wide array of polyaromatic phenols without pre- and postmanipulation of directing groups. The systematic mechanistic investigation, including deuterium-labeling experiments, palladacycle trapping, and DFT calculations, reveals that the tunable ligand-assisted C-H bond cleavage played a crucial role during the reaction process.
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Affiliation(s)
- Jing Jiang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Dandan Yuan
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Congzhe Ma
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Wanbin Song
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Yaoyu Lin
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Lihong Hu
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Yinan Zhang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
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21
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Sun Y, Feng C, Wang P, Yang F, Wu Y. Cobalt-catalyzed C8–H sulfonylation of 1-naphthylamine derivatives with sodium sulfinates. Org Chem Front 2021. [DOI: 10.1039/d1qo00975c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A facile and efficient protocol for cobalt-catalyzed regioselective C8–H sulfonylation of 1-naphthylamine derivatives with sodium sulfinates was developed to afford sulfonylated naphthylamines in moderate to good yields.
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Affiliation(s)
- Yucong Sun
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P R China
| | - Cancan Feng
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P R China
| | - Peisong Wang
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P R China
| | - Fan Yang
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P R China
| | - Yangjie Wu
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P R China
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22
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Jiang G, Yang G, Liu X, Wang S, Ji F. Palladium-catalyzed sequential acylation/annulation of indoles with acyl chlorides using primary amine as the directing group. NEW J CHEM 2021. [DOI: 10.1039/d0nj04406g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An efficient, palladium(ii)-catalyzed, C(sp2)–H acylation/annulation of indoles with acyl chlorides for the synthesis of substituted indolo[1,2-a]quinazolines is reported.
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Affiliation(s)
- Guangbin Jiang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
| | - Guang Yang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
| | - Xinqiang Liu
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
| | - Shoucai Wang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
| | - Fanghua Ji
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
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23
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Zu C, Zhang T, Yang F, Wu Y, Wu Y. Copper(II)-Catalyzed Direct Amination of 1-Naphthylamines at the C8 Site. J Org Chem 2020; 85:12777-12784. [PMID: 32880176 DOI: 10.1021/acs.joc.0c01672] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new and simple protocol for C8-H amination of 1-naphthylamine derivatives was developed using copper salt and di-tert-butyl peroxide (DTBP) as the catalyst and oxidant, respectively. This reaction proceeded smoothly under the additive and solvent-free conditions. In addition, this amination showed excellent regioselectivity and could tolerate various functional groups.
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Affiliation(s)
- Conghui Zu
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P.R. China
| | - Tingfang Zhang
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P.R. China
| | - Fan Yang
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P.R. China
| | - Yusheng Wu
- Tetranov Biopharm, LLC, Zhengzhou 450052, P.R. China
| | - Yangjie Wu
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P.R. China
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24
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Rej S, Chatani N. Rh III -Catalyzed Double Dehydrogenative Coupling of Free 1-Naphthylamines with α,β-Unsaturated Esters. Chemistry 2020; 26:11093-11098. [PMID: 32239540 DOI: 10.1002/chem.202000706] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Indexed: 11/08/2022]
Abstract
The RhIII -catalyzed, consecutive double C-H oxidative coupling of free 1-naphthylamine and α,β-unsaturated esters through C-H/C-H and C-H/N-H bonds is reported. The one step reaction leads to the formation of biologically important alkylidene-1,2-dihydrobenzo[cd]indoles scaffolds. This efficient process is much more synthetically convenient and useful than others because the starting materials, such as 1-naphthylamine derivatives are readily available and the free amine serves as a directing group.
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Affiliation(s)
- Supriya Rej
- 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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25
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Shi Y, Yang F, Wu Y. Palladium-catalyzed C8-H alkoxycarbonylation of 1-naphthylamines with alkyl chloroformates. Org Biomol Chem 2020; 18:4628-4637. [PMID: 32520064 DOI: 10.1039/d0ob00586j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A simple and efficient protocol for palladium-catalyzed C8-H alkoxycarbonylation of 1-naphthylamine derivatives with alkyl chloroformates has been developed, exhibiting broad functional group tolerance, high regioselectivity, and oxidant-free conditions. Furthermore, the reaction features its ease of further functionalization and transformation. For example, the concise synthesis of one BET bromodomain inhibitor was accomplished via benz[cd]indol-2(1H)-one after multistep transformations from the obtained alkoxycarbonylation product. In addition, the control experiments suggest that the reaction might involve a radical process and the C-H bond cleavage might not be involved in the rate-determining step.
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Affiliation(s)
- Yaqi Shi
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P R China.
| | - Fan Yang
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P R China.
| | - Yangjie Wu
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P R China.
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26
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Dong Z, Liu Y, Zhou CW, Huang JJ, Guo T, Wang Y. Direct cross-dehydrogenative coupling reactions of imidazopyridines and 1-naphthylamines with ethers under metal-free conditions. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1761394] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Zhe Dong
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing, P.R. China
- Institute for Food Control, National Institutes for Food and Drug Control, Beijing, P.R. China
| | - Yu Liu
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, P.R. China
| | - Chen-Wei Zhou
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, P.R. China
| | - Jun-Jian Huang
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, P.R. China
| | - Tao Guo
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, P.R. China
| | - Yun Wang
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing, P.R. China
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27
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Yao Y, Lin Q, Yang W, Yang W, Gu F, Guo W, Yang D. Cobalt(II)-Catalyzed [4+2] Annulation of Picolinamides with Alkynes via C-H Bond Activation. Chemistry 2020; 26:5607-5610. [PMID: 32045038 DOI: 10.1002/chem.202000411] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/06/2020] [Indexed: 11/08/2022]
Abstract
A cobalt(II)-catalyzed [4+2] annulation of picolinamides with alkynes via C-H bond activation has been developed. The operationally simple annulation reaction allows for the synthesis of acyl-substituted 1H-benzoquinoline bearing multiple aromatic rings (up to 96 % yield) without co-oxidant or other oxidation factors under mild conditions. Several control experiments were carried out. This practical [4+2] annulation provides an efficient route to access highly functionalized compounds.
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Affiliation(s)
- Yongqi Yao
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China, Normal University, Guangzhou, 510006, P. R. China
| | - Qifu Lin
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China, Normal University, Guangzhou, 510006, P. R. China
| | - Wen Yang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China, Normal University, Guangzhou, 510006, P. R. China
| | - Weitao Yang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China, Normal University, Guangzhou, 510006, P. R. China
| | - Fenglong Gu
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China, Normal University, Guangzhou, 510006, P. R. China
| | - Wei Guo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, P. R. China
| | - Dingqiao Yang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China, Normal University, Guangzhou, 510006, P. R. China
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28
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Javed E, Guthrie JD, Neu J, Chirayath GS, Huo S. Introducing an α-Keto Ester Functional Group through Pt-Catalyzed Direct C-H Acylation with Ethyl Chlorooxoacetate. ACS OMEGA 2020; 5:8393-8402. [PMID: 32309750 PMCID: PMC7161214 DOI: 10.1021/acsomega.0c00982] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 03/25/2020] [Indexed: 06/11/2023]
Abstract
Platinum-catalyzed selective C-H acylation of 2-aryloxypyridines with ethyl chlorooxoacetate provides an efficient way of introducing an α-keto ester functional group. The reaction is oxidant-free, additive-free, and, more significantly, free of any decarbonylative side reactions. The reaction tolerates a variety of substituents from strongly electron-donating to strongly electron-withdrawing groups. Double acylation is feasible for 2-phenoxypyridine and its derivatives with only one substituent at the para position. Although the reaction of 2-(2-methylphenoxy)pyridine with ethyl malonyl chloride did not produce the desired β-keto ester, the reaction with ethyl succinyl chloride proceeded smoothly to give the γ-keto ester. Ethyl chlorooxoacetate is much more reactive than ethyl succinyl chloride in this Pt-catalyzed C-H acylation reaction.
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Affiliation(s)
- Erman Javed
- Department of Chemistry, East
Carolina University, Greenville, North Carolina 27858, United States
| | | | - Justin Neu
- Department of Chemistry, East
Carolina University, Greenville, North Carolina 27858, United States
| | - George S. Chirayath
- Department of Chemistry, East
Carolina University, Greenville, North Carolina 27858, United States
| | - Shouquan Huo
- Department of Chemistry, East
Carolina University, Greenville, North Carolina 27858, United States
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29
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Prévost S. Regioselective C−H Functionalization of Naphthalenes: Reactivity and Mechanistic Insights. Chempluschem 2020; 85:476-486. [DOI: 10.1002/cplu.202000005] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 02/29/2020] [Indexed: 12/25/2022]
Affiliation(s)
- Sébastien Prévost
- Laboratoire de Synthèse Organique Ecole Polytechnique ENSTA CNRSInstitut Polytechnique de Paris 828 boulevard des Maréchaux 91120 Palaiseau France
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30
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Shinde VN, Bhuvanesh N, Kumar A, Joshi H. Design and Syntheses of Palladium Complexes of NNN/CNN Pincer Ligands: Catalyst for Cross Dehydrogenative Coupling Reaction of Heteroarenes. Organometallics 2020. [DOI: 10.1021/acs.organomet.9b00695] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Vikki N. Shinde
- Department of Chemistry, BITS Pilani, Pilani Campus, Pilani 333031, India
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
| | - Anil Kumar
- Department of Chemistry, BITS Pilani, Pilani Campus, Pilani 333031, India
| | - Hemant Joshi
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan 305817, India
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31
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Tao N, Wang J, Yuan C, Zeng R, Zhao YS. Palladium-Catalyzed Carboxylate-Assisted Ethoxycarboxylation of Aromatic Acids To Synthesize Monoethyl Phthalate Derivatives with Ethyl Bromodifluoroacetate. Org Lett 2019; 21:8607-8610. [PMID: 31621337 DOI: 10.1021/acs.orglett.9b03196] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A novel and efficient approach for direct carbonation of aromatic acids with ethyl bromodifluoroacetate as the carbonyl source is reported. A broad range of substrates bearing various functional groups were tolerated, leading to monoalkyl phthalate derivatives in moderate to good yields.
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Affiliation(s)
- Na Tao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
| | - Jie Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
| | - Chunchen Yuan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
| | - Runsheng Zeng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
| | - Ying-Sheng Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
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32
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Biswas S, Bheemireddy NR, Bal M, Van Steijvoort BF, Maes BUW. Directed C–H Functionalization Reactions with a Picolinamide Directing Group: Ni-Catalyzed Cleavage and Byproduct Recycling. J Org Chem 2019; 84:13112-13123. [DOI: 10.1021/acs.joc.9b02299] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Sovan Biswas
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
| | | | - Mathias Bal
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
| | - Ben F. Van Steijvoort
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
| | - Bert U. W. Maes
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
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33
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Alemán-Ponce de León D, Sánchez-Chávez AC, Polindara-García LA. Pd-Mediated γ-C(sp3)–H Bond Activation in Ammonia–Ugi 4-CR Adducts by Using Picolinamide as Directing Group. J Org Chem 2019; 84:12809-12834. [DOI: 10.1021/acs.joc.9b01436] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Diego Alemán-Ponce de León
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México 04510, México
| | - Anahí C. Sánchez-Chávez
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México 04510, México
| | - Luis A. Polindara-García
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México 04510, México
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34
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Wang X, Feng C, Yang F, Wu Y. Pd(ii)-Catalyzed C8-H alkoxycarbonylmethylation of 1-naphthylamides with α-chloroalkyl esters. Org Biomol Chem 2019; 17:4865-4868. [PMID: 31041981 DOI: 10.1039/c9ob00648f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An efficient protocol for palladium-catalyzed picolinamide directed C8-H alkoxycarbonylmethylation of 1-naphthylamine derivatives with α-chloroalkyl esters has been developed. The reaction exhibited a broad substrate scope and good functional group tolerance with high isolated yields. Note that α-chloroalkyl esters as a new type of alkylating reagent could be easily functionalized further due to their pending an ester group.
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Affiliation(s)
- Xiaolong Wang
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou, PR China.
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