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Tewari S, Mungalpara MN, Patel S, Rowlands GJ. The concise synthesis and resolution of planar chiral [2.2]paracyclophane oxazolines by C-H activation. RSC Adv 2022; 12:8588-8591. [PMID: 35424822 PMCID: PMC8984818 DOI: 10.1039/d2ra01075e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 03/03/2022] [Indexed: 11/29/2022] Open
Abstract
Planar chiral [2.2]paracyclophanes are resolved through the direct C–H arylation of enantiopure oxazolines, providing a convenient route to ligands and chiral materials. Preliminary results show that hydrolysis followed by decarboxylative phosphorylation leads to enantiopure [2.2]paracyclophane derivatives that are otherwise challenging to prepare. Racemic bromo[2.2]paracyclophanes are directly transformed into enantiomerically pure planar chiral oxazolines in one step with simultaneous resolution of planar chirality.![]()
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Affiliation(s)
- Shashank Tewari
- School of Natural Sciences, Massey University Private Bag 11 222 Palmerston North 4442 New Zealand
| | - Maulik N Mungalpara
- School of Natural Sciences, Massey University Private Bag 11 222 Palmerston North 4442 New Zealand
| | - Suraj Patel
- School of Natural Sciences, Massey University Private Bag 11 222 Palmerston North 4442 New Zealand
| | - Gareth J Rowlands
- School of Natural Sciences, Massey University Private Bag 11 222 Palmerston North 4442 New Zealand
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Liu H, Sun K, Li X, Zhang J, Lu W, Luo X, Luo H. Palladium-catalyzed phosphorylation of arylsulfonium salts with P(O)H compounds via C–S bond cleavage. RSC Adv 2022; 12:25280-25283. [PMID: 36199296 PMCID: PMC9450109 DOI: 10.1039/d2ra04297e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 08/31/2022] [Indexed: 11/21/2022] Open
Abstract
Herein we report a novel palladium-catalyzed phosphorylation of arylsulfonium salts with P(O)H compounds via C–S bond cleavage under mild conditions.
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Affiliation(s)
- Huijin Liu
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Kai Sun
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Xiaolan Li
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Jie Zhang
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Wei Lu
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Xuzhong Luo
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Haiqing Luo
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
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Patel S, Dais TN, Plieger PG, Rowlands GJ. Breaking paracyclophane: the unexpected formation of non-symmetric disubstituted nitro[2.2]metaparacyclophanes. Beilstein J Org Chem 2021; 17:1518-1526. [PMID: 34285723 PMCID: PMC8261525 DOI: 10.3762/bjoc.17.109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 06/20/2021] [Indexed: 12/14/2022] Open
Abstract
Substituted [2.2]metaparacyclophanes are amongst the least studied of the simple cyclophanes. This is undoubtedly the result of the lengthy syntheses of these compounds. We report the simple synthesis of a rare example of a non-symmetric [2.2]metaparacyclophane. Treatment of [2.2]paracyclophane under standard nitration conditions gives a mixture of 4-nitro[2.2]paracyclophane, 4-hydroxy-5-nitro[2.2]metaparacyclophane and a cyclohexadienone cyclophane.
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Affiliation(s)
- Suraj Patel
- School of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Tyson N Dais
- School of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Paul G Plieger
- School of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Gareth J Rowlands
- School of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
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Luo H, Sun K, Xie Q, Li X, Zhang X, Luo X. Copper‐Mediated Phosphorylation of Arylsilanes with H‐Phosphonate Diesters. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000529] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Haiqing Luo
- Department of Chemistry & Chemical Engineering Gannan Normal University South Road of Normal University, Rongjiang New District Ganzhou Jiangxi 341000 P. R. China
| | - Kai Sun
- Department of Chemistry & Chemical Engineering Gannan Normal University South Road of Normal University, Rongjiang New District Ganzhou Jiangxi 341000 P. R. China
| | - Qi Xie
- Department of Chemistry & Chemical Engineering Gannan Normal University South Road of Normal University, Rongjiang New District Ganzhou Jiangxi 341000 P. R. China
| | - Xiaolan Li
- Department of Chemistry & Chemical Engineering Gannan Normal University South Road of Normal University, Rongjiang New District Ganzhou Jiangxi 341000 P. R. China
| | - Xiuqi Zhang
- Department of Chemistry & Chemical Engineering Gannan Normal University South Road of Normal University, Rongjiang New District Ganzhou Jiangxi 341000 P. R. China
| | - Xuzhong Luo
- Department of Chemistry & Chemical Engineering Gannan Normal University South Road of Normal University, Rongjiang New District Ganzhou Jiangxi 341000 P. R. China
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Li DH, He XX, Xu C, Huang FD, Liu N, Shen DS, Liu FS. N-Heterocarbene Palladium Complexes with Dianisole Backbones: Synthesis, Structure, and Catalysis. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00230] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Dong-Hui Li
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, China
| | - Xu-Xian He
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, China
| | - Chang Xu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, China
| | - Fei-Dong Huang
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, China
| | - Ning Liu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, China
| | - Dong-Sheng Shen
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, China
| | - Feng-Shou Liu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, China
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Li SG, Yuan M, Topic F, Han ZS, Senanayake CH, Tsantrizos YS. Asymmetric Library Synthesis of P-Chiral t-Butyl-Substituted Secondary and Tertiary Phosphine Oxides. J Org Chem 2019; 84:7291-7302. [PMID: 31099249 DOI: 10.1021/acs.joc.9b00945] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Shi-Guang Li
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Minglei Yuan
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Filip Topic
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Zhengxu S. Han
- Chemical Development, Boehringer-Ingelheim Pharmaceuticals Incorporation, 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Chris H. Senanayake
- Chemical Development, Boehringer-Ingelheim Pharmaceuticals Incorporation, 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Youla S. Tsantrizos
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
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