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Xu H, Ye S, Zhao R, Seferos DS. Homogeneous Synthesis of Monodisperse Sequence‐Defined Conjugated Oligomers by Temperature Cycling. Angew Chem Int Ed Engl 2022; 61:e202210340. [DOI: 10.1002/anie.202210340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Indexed: 11/12/2022]
Affiliation(s)
- Hao Xu
- Department of Chemistry University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Shuyang Ye
- Department of Chemistry University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Ruyan Zhao
- Department of Chemistry University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Dwight S. Seferos
- Department of Chemistry University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
- Department of Chemical Engineering and Applied Chemistry University of Toronto 200 College Street Toronto Ontario M5S 3E5 Canada
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Xu H, Ye S, Zhao R, Seferos DS. Homogeneous Synthesis of Monodisperse Sequence‐Defined Conjugated Oligomers by Temperature Cycling. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210340] [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)
- Hao Xu
- University of Toronto - St George Campus: University of Toronto Chemistry CANADA
| | - Shuyang Ye
- University of Toronto - St George Campus: University of Toronto Chemistry CANADA
| | - Ruyan Zhao
- University of Toronto - St George Campus: University of Toronto Chemistry CANADA
| | - Dwight S. Seferos
- University of Toronto Chemistry 80 St. George Street M5S 3H6 Toronto CANADA
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He W, Wang S, Li M, Wang X, Tao Y. Iterative Synthesis of Stereo- and Sequence-Defined Polymers via Acid-Orthogonal Deprotection Chemistry. Angew Chem Int Ed Engl 2022; 61:e202112439. [PMID: 34981638 DOI: 10.1002/anie.202112439] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Indexed: 12/15/2022]
Abstract
Absolute control over polymer stereo- and sequence structure is highly challenging in polymer chemistry. Here, an acid-orthogonal deprotection strategy is proposed for the iterative synthesis of a family of unimolecular polymers starting with enantiopure serines, featuring precise sequence, stereoconfiguration and side-chain functionalities that cannot be achieved using traditional polymerization techniques. Acid-orthogonal deprotections proceed independently of one another by the selection of protecting groups that feature the respective acid-lability. Under p-toluenesulfonic acid, acidolysis of tert-butyloxycarbonyl can proceed exclusively, while low-dosage trifluoroacetic acid and low temperature only trigger the selective and quantitative cleavage of trityl. The pioneering use of this acid-orthogonal deprotection chemistry increases the compatibility with otherwise sensitive groups and opens up pathways to facilely introduce structural and functional diversity into stereo- and sequence-defined polymers, thus imparting their unique properties beyond natural biopolymers.
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Affiliation(s)
- Wenjing He
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, P.R. China.,University of Science and Technology of China, Hefei, 230026, P.R. China
| | - Shixue Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, P.R. China
| | - Maosheng Li
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, P.R. China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, P.R. China
| | - Youhua Tao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, P.R. China.,University of Science and Technology of China, Hefei, 230026, P.R. China
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He W, Wang S, Li M, Wang X, Tao Y. Iterative Synthesis of Stereo‐ and Sequence‐Defined Polymers
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Acid‐Orthogonal Deprotection Chemistry. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wenjing He
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P.R. China
- University of Science and Technology of China Hefei 230026 P.R. China
| | - Shixue Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P.R. China
| | - Maosheng Li
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P.R. China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P.R. China
| | - Youhua Tao
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P.R. China
- University of Science and Technology of China Hefei 230026 P.R. China
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