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Lin G, Qiu H. Diverse Supports for Immobilization of Catalysts in Continuous Flow Reactors. Chemistry 2022; 28:e202200069. [DOI: 10.1002/chem.202200069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Geyu Lin
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Huibin Qiu
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai 200240 P. R. China
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Direct Amination of Benzene with Molecular Nitrogen Enabled by Plasma‐Liquid Interactions. Angew Chem Int Ed Engl 2022; 61:e202203680. [DOI: 10.1002/anie.202203680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Indexed: 11/07/2022]
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Xu X, Zhao X, Tang J, Duan Y, Tian Y. Direct Amination of Benzene with Molecular Nitrogen Enabled by Plasma‐Liquid Interactions. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203680] [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)
- Xia Xu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an Shaanxi 710027 China
| | - Xuyang Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an Shaanxi 710027 China
| | - Jie Tang
- State Key Laboratory of Transient Optics and Photonics Xi'an Institute of Optics and Precision Mechanics of CAS Xi'an Shaanxi 710119 China
| | - Yixiang Duan
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an Shaanxi 710027 China
| | - Yong‐Hui Tian
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an Shaanxi 710027 China
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Ichitsuka T, Komatsuzaki S, Masuda K, Koumura N, Sato K, Kobayashi S. Stereoretentive N-Arylation of Amino Acid Esters with Cyclohexanones Utilizing a Continuous-Flow System. Chemistry 2021; 27:10844-10848. [PMID: 33909295 DOI: 10.1002/chem.202101439] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Indexed: 01/29/2023]
Abstract
The N-arylation of chiral amino acid esters with minimal racemization is a challenging transformation because of the sensitivity of the α-stereocenter. A versatile synthetic method was developed to prepare N-arylated amino acid esters using cyclohexanones as aryl sources under continuous-flow conditions. The designed flow system, which consists of a coil reactor and a packed-bed reactor containing a Pd(OH)2 /C catalyst, efficiently afforded the desired N-arylated amino acids without significant racemization, accompanied by only small amounts of easily removable co-products (i. e., H2 O and alkanes). The efficiency and robustness of this method allowed for the continuous synthesis of the desired product in very high yield and enantiopurity with high space-time yield (74.1 g L-1 h-1 ) and turnover frequency (5.9 h-1 ) for at least 3 days.
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Affiliation(s)
- Tomohiro Ichitsuka
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, Higashi 1-1-1, Tsukuba, Ibaraki, 305-8565, Japan.,Research Institute of Chemical Process Technology, National Institute of Advanced Industrial Science and Technology (AIST), Nigatake 4-2-1, Sendai, Miyagi, 983-8551, Japan
| | - Shingo Komatsuzaki
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, Higashi 1-1-1, Tsukuba, Ibaraki, 305-8565, Japan
| | - Koichiro Masuda
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, Higashi 1-1-1, Tsukuba, Ibaraki, 305-8565, Japan
| | - Nagatoshi Koumura
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, Higashi 1-1-1, Tsukuba, Ibaraki, 305-8565, Japan
| | - Kazuhiko Sato
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, Higashi 1-1-1, Tsukuba, Ibaraki, 305-8565, Japan
| | - Shū Kobayashi
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, Higashi 1-1-1, Tsukuba, Ibaraki, 305-8565, Japan.,Department of Chemistry, School of Science, The University of Tokyo Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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