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Wang BW, Pu YL, Li RZ, Li BY, Jiao HJ, Bai YL, Bao W, Zhang Y, Zhu DY, Wang SH. An Acetic Acid-Promoted Strecker Type Reaction of N,N-Disubstituted Aminomalononitriles: An Efficient Way for the Construction of α-Aminonitriles. J Org Chem 2025; 90:4748-4758. [PMID: 40132214 DOI: 10.1021/acs.joc.4c02945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2025]
Abstract
A Strecker type reaction between aldehydes and readily available N,N-disubstituted aminomalononitriles has been realized for the first time to give an alternative strategy for the synthesis of α-aminonitriles. This reaction features broad substrate scope and the use of water as solvent, and its utility has been supported by the formal synthesis of racemic Clopidogrel and a 3-aminoindole type of compound.
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Affiliation(s)
- Bo-Wen Wang
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yan-Lin Pu
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Lanzhou 730000, P. R. China
| | - Run-Ze Li
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Lanzhou 730000, P. R. China
| | - Bai-Yang Li
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Lanzhou 730000, P. R. China
| | - Hai-Juan Jiao
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yin-Liang Bai
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Lanzhou 730000, P. R. China
| | - Wen Bao
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Lanzhou 730000, P. R. China
| | - Ye Zhang
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Lanzhou 730000, P. R. China
| | - Dao-Yong Zhu
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Lanzhou 730000, P. R. China
| | - Shao-Hua Wang
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Lanzhou 730000, P. R. China
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Ji Y, Zhang X, Wu Y, Dang ZL, Han WW, Wang SC, Dong SB, Zhang QZ. Oxidative Cyanation of Tertiary Amines for Facile Synthesis of Tetrahydroisoquinolines with Quaternary Centers. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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3
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Kumar GS, Shinde PS, Chen H, Muralirajan K, Kancherla R, Rueping M. Paired Electrolysis for Decarboxylative Cyanation: 4-CN-Pyridine, a Versatile Nitrile Source. Org Lett 2022; 24:6357-6363. [PMID: 36036921 DOI: 10.1021/acs.orglett.2c01897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A decarboxylative cyanation of amino acids under paired electrochemical reaction conditions has been developed. 4-CN-pyridine was found to be a new and effective cyanation reagent under catalyst-free conditions. Mechanistic studies support a nucleophilic reaction pathway, and the cyanation protocol can be applied to diverse substrates including N,N-dialkyl aniline and indole derivatives.
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Affiliation(s)
- Gadde Sathish Kumar
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Prashant S Shinde
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Haifeng Chen
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Krishnamoorthy Muralirajan
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Rajesh Kancherla
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Magnus Rueping
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
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Liu L, Liu Y, Shen X, Zhang X, Deng S, Chen Y. KO tBu-Mediated Reductive Cyanation of Tertiary Amides for Synthesis of α-Aminonitriles. J Org Chem 2022; 87:6321-6329. [PMID: 35394785 DOI: 10.1021/acs.joc.1c02835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A simple, mild, catalyst-free, and efficacious KOtBu-mediated reductive cyanation reaction of tertiary amides under hydrosilylation conditions has been described. A series of α-aminonitriles is obtained in moderate to high yield with good functional group tolerance. The reaction works well with a readily available amide substrate, a cheap and versatile base KOtBu, and a commercially available hydrosilane (EtO)3SiH and is convenient for workup and purification.
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Affiliation(s)
- Liwen Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Yu Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Xue Shen
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Xiao Zhang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Shengqi Deng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Yang Chen
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China
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