1
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Liu L, Luo R, Tong J, Liao J. Iridium-catalysed reductive allylic amination of α,β-unsaturated aldehydes. Org Biomol Chem 2024; 22:585-589. [PMID: 38131265 DOI: 10.1039/d3ob01753b] [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
Allylic amination is a powerful tool for constructing N-allylic amines widely found in bioactive molecules. Generally, allylic alcohols and unsaturated hydrocarbons have been considered for allylic amination reactions to minimize waste production. Herein, we present an iridium-catalysed method for reductive allylic amination of α,β-unsaturated aldehydes with amines to afford N-allylic amines under air conditions. This protocol is demonstrated to provide products from many substrates (41 examples) in moderate-to-excellent yields. This synthetic methodology is also highlighted by the synthesis of drug molecules, optically pure products, as well as scale-up experiments.
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Affiliation(s)
- Liang Liu
- School of Pharmacy, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, P. R. China.
| | - Renshi Luo
- College of Chemistry and Environmental Engineering, Shaoguan University, Shaoguan, 512005, Guangdong Province, P. R. China
| | - Jinghui Tong
- School of Pharmacy, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, P. R. China.
| | - Jianhua Liao
- School of Pharmacy, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, P. R. China.
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2
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Bhoi SR, Debnath C, Gandhi S. Pd/Brønsted acid catalysed intramolecular N-allylation of indoles and pyrroles with alkynes for the synthesis of N-fused heterocycles. Chem Commun (Camb) 2024; 60:428-431. [PMID: 38086631 DOI: 10.1039/d3cc05023h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
We, herein, report a Pd(0) and Brønsted acid-catalyzed redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes for the synthesis of biologically important imidazolidinone-fused N-heterocycles. The allylation is completely atom-economical and is applicable to a wide range of substrates. The methodology eliminates the use of a leaving group or an oxidizing agent, often employed for the allylation of nucleophiles. To the best of our knowledge, N-allylation of indoles and pyrroles with alkynes has not been reported to date.
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Affiliation(s)
- Saswat Ranjan Bhoi
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Berhampur 760010, India.
| | - Chhanda Debnath
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Berhampur 760010, India.
| | - Shikha Gandhi
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Berhampur 760010, India.
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3
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Zhang Z, Zhang X, Liu Y, Wang X, Zhang X. 1,1,1,3,3,3-Hexafluoroisopropanol (HFIP) Promoted N-Alkylation of Quinazolinones through Nucleophilic Substitution of Benzyl Alcohols. J Org Chem 2023; 88:14189-14192. [PMID: 37737726 DOI: 10.1021/acs.joc.3c01366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
We describe here a protocol for alkylation of quinazolinones with a series of primary or secondary alcohols under metal-free conditions. A class of quinazolinone derivatives were obtained in 31%-97% yield with good functional group tolerance. This protocol provides chemists a direct and effective way to obtain bioactive quinazolinone derivatives.
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Affiliation(s)
- Zhiguang Zhang
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Xiaomin Zhang
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Yanmei Liu
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Xu Wang
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Xiaolei Zhang
- Hebei Research Centre of Analysis and Testing, Hebei University of Science and Technology, Shijiazhuang, 050018, China
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4
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Cera G, Maestri G. Palladium/Brønsted Acid Catalysis for Hydrofunctionalizations of Alkynes: from Tsuji‐Trost Allylations to Stereoselective Methodologies. ChemCatChem 2022. [DOI: 10.1002/cctc.202200295] [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)
- Gianpiero Cera
- Universita degli Studi di Parma Dipartimento delle Scienze Chimiche, della Vita e della Sostenibilità Ambientale Parco Area delle Scienze, 17/A 43124 Parma ITALY
| | - Giovanni Maestri
- University of Parma: Universita degli Studi di Parma Dipartimento delle Scienze Chimiche, della Vita e della Sostenibilità Ambientale Parco Area delle Scienze, 17/A 43124 Parma ITALY
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5
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Sebastian D, Willoughby PH, Lakshman MK. Cross-dehydrogenative coupling of ethers and amides with the tautomerizable quinazolinones, and mechanistic studies. Org Biomol Chem 2022; 20:5735-5746. [DOI: 10.1039/d2ob00874b] [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
Cross-dehydrogenative coupling reactions have been utilized to alkylate 4(3H)-quinazolinones with ethers and amides, using catalytic n-Bu4NI and t-BuOOH as oxidant. Reactions with amides represent the first examples under such conditions....
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6
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Lu CJ, Chen YT, Wang H, Li YJ. Palladium-catalyzed dearomative allylation of indoles with cyclopropyl acetylenes: access to indolenine derivatives. Org Biomol Chem 2021; 19:635-644. [PMID: 33367392 DOI: 10.1039/d0ob02103b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A palladium-catalyzed redox-neutral allylic alkylation of indoles with cyclopropyl acetylenes has been disclosed. Various 1,3-diene indolenine framework bearing a quaternary stereocenter at the C3 position were synthesized straightforwardly in good to excellent yields with high regio- and stereoselectivities. The reaction could be further expanded to the dearomatization of naphthols to synthesize functionalized cyclohexadienones with 1,3-diene motifs. The reaction exhibited high atom economy and good functional group tolerance.
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Affiliation(s)
- Chuan-Jun Lu
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China. and College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Yu-Ting Chen
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
| | - Hong Wang
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
| | - Yu-Jin Li
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
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7
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Zhang Z, Dai S, Li L, Jia C, Zhang Y, Li H. Scandium-catalyzed Michael addition of quinazolinones and vinylazaarenes. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151926] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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8
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Zhou Q, Zheng L, Ma B, Huang L, Liu A, Cao X, Yu J, Ma X. Insights into Substrate Self-Assisted Activation of Allylic Alcohols Guiding to Mild Allylic Substitution of Tautomerizable Heteroarenes. J Org Chem 2020; 85:5097-5103. [PMID: 32151136 DOI: 10.1021/acs.joc.0c00094] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A substrate self-assisted activation of allylic alcohols by tautomerizable heteroarenes via hydrogen bonding was disclosed by various NMR techniques, including variable-temperature 1H NMR, Job plot, and 1H NMR titration. Guided by these finding, a much milder allylic substitution of tautomerizable heteroarenes with allylic alcohols was developed, affording the target products in high yields.
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Affiliation(s)
- Qiuju Zhou
- College of Chemistry and Chemical Engineering, Green Catalysis & Synthesis Key Laboratory of Xinyang City, Xinyang Normal University, Xinyang, Henan 464000, China
| | - Lingyun Zheng
- College of Chemistry and Chemical Engineering, Green Catalysis & Synthesis Key Laboratory of Xinyang City, Xinyang Normal University, Xinyang, Henan 464000, China
| | - Bing Ma
- College of Chemistry and Chemical Engineering, Green Catalysis & Synthesis Key Laboratory of Xinyang City, Xinyang Normal University, Xinyang, Henan 464000, China
| | - Lijun Huang
- College of Chemistry and Chemical Engineering, Green Catalysis & Synthesis Key Laboratory of Xinyang City, Xinyang Normal University, Xinyang, Henan 464000, China
| | - Aoqi Liu
- College of Chemistry and Chemical Engineering, Green Catalysis & Synthesis Key Laboratory of Xinyang City, Xinyang Normal University, Xinyang, Henan 464000, China
| | - Xinhua Cao
- College of Chemistry and Chemical Engineering, Green Catalysis & Synthesis Key Laboratory of Xinyang City, Xinyang Normal University, Xinyang, Henan 464000, China
| | - Jing Yu
- College of Chemistry and Chemical Engineering, Green Catalysis & Synthesis Key Laboratory of Xinyang City, Xinyang Normal University, Xinyang, Henan 464000, China
| | - Xiantao Ma
- College of Chemistry and Chemical Engineering, Green Catalysis & Synthesis Key Laboratory of Xinyang City, Xinyang Normal University, Xinyang, Henan 464000, China
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9
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Lu CJ, Yu X, Chen YT, Song QB, Yang ZP, Wang H. Palladium-Catalyzed Allylation of Cyclopropyl Acetylenes with Oxindoles to Construct 1,3-Dienes. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901536] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Chuan-Jun Lu
- College of Chemical Engineering; Zhejiang University of Technology; Chaowang Road 18# 310014 Hangzhou ZheJiang China
| | - Xin Yu
- College of Chemical Engineering; Zhejiang University of Technology; Chaowang Road 18# 310014 Hangzhou ZheJiang China
| | - Yu-Ting Chen
- College of Chemical Engineering; Zhejiang University of Technology; Chaowang Road 18# 310014 Hangzhou ZheJiang China
| | - Qing-Bao Song
- College of Chemical Engineering; Zhejiang University of Technology; Chaowang Road 18# 310014 Hangzhou ZheJiang China
| | - Zhen-Ping Yang
- College of Chemical Engineering; Zhejiang University of Technology; Chaowang Road 18# 310014 Hangzhou ZheJiang China
| | - Hong Wang
- College of Chemical Engineering; Zhejiang University of Technology; Chaowang Road 18# 310014 Hangzhou ZheJiang China
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10
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11
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Ren W, Zuo QM, Niu YN, Yang SD. Palladium-NHC-Catalyzed Allylic Alkylation of Pronucleophiles with Alkynes. Org Lett 2019; 21:7956-7960. [PMID: 31513418 DOI: 10.1021/acs.orglett.9b02937] [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
The palladium-N-heterocyclic carbene (NHC)-catalyzed allylic alkylation of various pronucleophiles with alkynes has been accomplished under mild conditions. The protocol exhibits broad functional group compatibility and high atom economy. Moreover, the catalytic process avoids the use of external oxidants and acid as additives.
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Affiliation(s)
- Wei Ren
- State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Qian-Ming Zuo
- State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Yan-Ning Niu
- Department of Teaching and Research , Nanjing Forestry University , Huaian 223003 , P. R. China
| | - Shang-Dong Yang
- State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou 730000 , P. R. China
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12
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Lu CJ, Yu X, Chen DK, Wang H, Song QB, Gao JR. Palladium-catalyzed allylation of aminophenol with alkynes to construct C-N bonds. Org Biomol Chem 2019; 17:3545-3551. [PMID: 30896704 DOI: 10.1039/c9ob00333a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A method for the allylic alkylation of aminophenol with alkynes was developed using a palladium-catalysed allylation reaction with 100% atom economy. A series of structurally diverse N-allylic substituted allylamines were synthesized in good yields with high chemo-, regio-, and stereoselectivities under mild conditions.
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Affiliation(s)
- Chuan-Jun Lu
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
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13
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Ramasamy S, Petha C, Tendulkar S, Maity P, Eastgate MD, Vaidyanathan R. Synergistic Effect of Copper and Ruthenium on Regioselectivity in the Alkyne–Azide Click Reaction of Internal Alkynes. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.8b00163] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sivaraj Ramasamy
- Chemical Development and API Supply, Biocon Bristol-Myers Squibb Research and Development Center, Biocon Park, Jigani Link Road, Bommasandra IV, Bangalore 560099, India
| | - Chittibabu Petha
- Chemical Development and API Supply, Biocon Bristol-Myers Squibb Research and Development Center, Biocon Park, Jigani Link Road, Bommasandra IV, Bangalore 560099, India
| | - Shankar Tendulkar
- Chemical Development and API Supply, Biocon Bristol-Myers Squibb Research and Development Center, Biocon Park, Jigani Link Road, Bommasandra IV, Bangalore 560099, India
| | - Prantik Maity
- Chemical Development and API Supply, Biocon Bristol-Myers Squibb Research and Development Center, Biocon Park, Jigani Link Road, Bommasandra IV, Bangalore 560099, India
| | - Martin D. Eastgate
- Chemical and Synthetic Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Rajappa Vaidyanathan
- Chemical Development and API Supply, Biocon Bristol-Myers Squibb Research and Development Center, Biocon Park, Jigani Link Road, Bommasandra IV, Bangalore 560099, India
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14
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Zhou Y, Breit B. Rhodium-Catalyzed Asymmetric N−H Functionalization of Quinazolinones with Allenes and Allylic Carbonates: The First Enantioselective Formal Total Synthesis of (−)-Chaetominine. Chemistry 2017; 23:18156-18160. [DOI: 10.1002/chem.201705059] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Yirong Zhou
- Institut für Organische Chemie and Freiburg Institute of Advanced Studies (FRIAS); Albert-Ludwigs-Universität; Alberstr. 21 79104 Freiburg Germany
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education; College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 China
| | - Bernhard Breit
- Institut für Organische Chemie and Freiburg Institute of Advanced Studies (FRIAS); Albert-Ludwigs-Universität; Alberstr. 21 79104 Freiburg Germany
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