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Tan SZ, Chen P, Zhu L, Gan MQ, Ouyang Q, Du W, Chen YC. Use of ( E, E)-Dienoic Acids as Switchable ( E, E)- and ( Z, E)-Dienyl Anion Surrogates via Ligand-Controlled Palladium Catalysis. J Am Chem Soc 2022; 144:22689-22697. [PMID: 36468863 DOI: 10.1021/jacs.2c10004] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Carboxylic acids are not readily applied as carbon-based nucleophiles due to their intrinsic acidic group. Here, we demonstrate that free (E,E)-2,4-dienoic acids form electron-neutral and highest occupied molecular orbital-raised η2-complexes with Pd(0) and undergo Friedel-Crafts-type additions to imines with exclusive α-regioselectivity, giving formal dienylated products after decarboxylation. Unusual and switchable (E,E)- and (Z,E)-selectivity, along with excellent enantioselectivity, is achieved via ligand-controlled outer-sphere or inner-sphere reaction modes, respectively, which are well supported by comprehensive density functional theory calculation studies. An unprecedented formal reductive Mannich reaction between (E,E)-dienoic acids and imines is also developed to furnish enantioenriched β-amino acid derivatives.
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Affiliation(s)
- Shun-Zhong Tan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, China
| | - Peng Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, China
| | - Lei Zhu
- College of Pharmacy, Third Military Medical University, Chongqing400038, China
| | - Meng-Qi Gan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, China
| | - Qin Ouyang
- College of Pharmacy, Third Military Medical University, Chongqing400038, China
| | - Wei Du
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, China
| | - Ying-Chun Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu610041, China.,College of Pharmacy, Third Military Medical University, Chongqing400038, China
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Takabatake T, Tomita H, Okada S, Hayashi N, Masuko T, Toyota M. Anticancer agent synthesis designed by artificial intelligence: Pd(OAc)2-catalyzed one-pot preparation of biphenyls and its application to a concise synthesis of various diazofluorenes. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Takabatake T, Fujiwara K, Okamoto S, Kishimoto R, Kagawa N, Toyota M. Discovery of orthogonal synthesis using artificial intelligence: Pd(OAc)2-catalyzed one-pot synthesis of benzofuran and bicyclo[3.3.1]nonane scaffolds. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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