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Shao R, Zhao H, Ding S, Li L, Chen C, Wang J, Shang Y. Silver-promoted dearomative [3+4] cycloaddition of anthranils with α-isocyanoacetates: access to benzodiazepines. Chem Commun (Camb) 2022; 58:4771-4774. [PMID: 35343523 DOI: 10.1039/d2cc00807f] [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 first example of silver-promoted [3+4] cycloaddition of α-isocyanoacetates with anthranils as aromatic Michael accepters, offering access to benzo[d][1,3]diazepinones, has been developed. Mechanistic studies revealed that an "oxygen migration" rearrangement process was involved in this dearomative cycloaddition reaction. Additionally, benzo[d][1,3]diazepinones were obtained efficiently as well under catalytic conditions. Broad functional groups were well tolerated under mild reaction conditions.
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Affiliation(s)
- Rui Shao
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Haixia Zhao
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Shumin Ding
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Lianjie Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Chen Chen
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Jian Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
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Gao G, Kuantao, Mao, Lv L, Li Z. Three‐Component Coupling of α‐Trifluoromethyl Carbonyls, Azides and Amines for the Regioselective Synthesis of 1,4,5‐Trisubstituted 1,2,3‐Triazoles. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200094] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ge Gao
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Kuantao
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Mao
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Leiyang Lv
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Zhiping Li
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
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Ge D, Chu XQ. Multiple-fold C–F bond functionalization for the synthesis of (hetero)cyclic compounds: fluorine as a detachable chemical handle. Org Chem Front 2022. [DOI: 10.1039/d1qo01749g] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We highlighted the recent advances in the field of multiple-fold C–F bond functionalization for the synthesis of (hetero)cyclic compounds.
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Affiliation(s)
- Danhua Ge
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xue-Qiang Chu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
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Sun LW, Yu ZL, Luo XL, Ma M, Shen ZL, Chu XQ. Transition-metal-free hydroamination/defluorination/cyclization of perfluoroalkyl alkynes with amidines. Org Chem Front 2022. [DOI: 10.1039/d1qo01439k] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An efficient defluorinative cyclization strategy for the construction of perfluoroalkyl-substituted pyrimidines by using perfluoroalkyl alkynes and amidines as substrates was developed.
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Affiliation(s)
- Li-Wen Sun
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Zi-Lun Yu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xin-Long Luo
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Mengtao Ma
- Department of Chemistry and Materials Science, College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Zhi-Liang Shen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xue-Qiang Chu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
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Lv L, Gao G, Luo Y, Mao K, Li Z. Three-Component Reactions of α-CF 3 Carbonyls, NaN 3, and Amines for the Synthesis of NH-1,2,3-Triazoles. J Org Chem 2021; 86:17197-17212. [PMID: 34724616 DOI: 10.1021/acs.joc.1c02288] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The development of methods for the assembly of 1,2,3-triazoles is an important topic due to the broad applications of this motif in various scientific fields. In this work, we demonstrate that the three-component assembly of α-CF3 carbonyls, NaN3, and amines was achieved for the selective construction of a variety of 5-amino NH-1,2,3-triazoles under transition-metal-free and open-air conditions. The method provides a general and operationally simple route to functionalized biologically important molecules including carbohydrates, nucleosides, and peptides and exhibits broad substrate scopes. We further demonstrate that the NH-1,2,3-triazoles can be smoothly converted to the regiospecific N-2 alkylated 1,2,3-triazole products. Mechanistic studies based on experiments and density functional theory calculations showed that this transformation proceeds via defluorination-initiated programmed substitution/cyclization/H-transfer to give the 4,5-difunctionalized captodative NH-1,2,3-triazole product.
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Affiliation(s)
- Leiyang Lv
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Ge Gao
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Yani Luo
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Kuantao Mao
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Zhiping Li
- Department of Chemistry, Renmin University of China, Beijing 100872, China
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Luo XL, Ge D, Yu ZL, Chu XQ, Xu P. Vitamin B1-catalyzed aerobic oxidative esterification of aromatic aldehydes with alcohols. RSC Adv 2021; 11:30937-30942. [PMID: 35498930 PMCID: PMC9041312 DOI: 10.1039/d1ra05134b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 08/24/2021] [Indexed: 01/23/2023] Open
Abstract
A straightforward aerobic oxidative esterification of aryl aldehydes with alcohols has been developed for the synthesis of substituted esters by employing vitamin B1 as a cost-effective, metal-free, and eco-friendly NHC catalyst. Air is used as a green terminal oxidant. The reaction is a useful addition to the existing NHC-catalytic oxidative esterification. An aerobic oxidative esterification of aryl aldehydes with alcohols has been developed by employing vitamin B1 as a cost-effective, metal-free, and eco-friendly NHC catalyst.![]()
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Affiliation(s)
- Xin-Long Luo
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Danhua Ge
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Zi-Lun Yu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xue-Qiang Chu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Pei Xu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
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