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1
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Zhai DH, Yan BX, Li ZC, Lin Z, Li Q, Wang YL, Zheng HX, Zhao CQ. The stereoselective conversion of epimerized alkoxyl phosphine-borane to P,C, axial-stereogenic tertiary phosphine via cleavage of P-O bond. Org Biomol Chem 2022; 20:2615-2620. [PMID: 35297934 DOI: 10.1039/d2ob00351a] [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 P-O bond of epimerized alkoxyl phosphine-borane was cleaved by naphthalene-lithium, to form two diastereomers of P-anions in a ratio of 86 : 14, which was then converted to secondary phosphine-borane via acidification, and to tertiary phosphines with alkyl halides with enhanced 96 : 4 dr. The isolated tertiary phosphine containing hydroxyl (in >99 : 1 dr) was converted to multi-stereogenic tertiary phosphines via O-alkylation with alkylene dihalides.
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Affiliation(s)
- De-Hua Zhai
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China.
| | - Bing-Xia Yan
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China.
| | - Zhan-Cai Li
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China.
| | - Zhu Lin
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China.
| | - Qiang Li
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China.
| | - Yan-Lan Wang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China.
| | - Hong-Xing Zheng
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China.
| | - Chang-Qiu Zhao
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China.
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2
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Reinhardt K, Koller S, Klein P, Lossin C, Gatzka J, Altmann PJ, Pöthig A, Hintermann L. Dimenthylphosphine P-Oxide as a Synthetic Platform for Bulky and Chiral Ligands with Dimenthylphosphino Donor Groups. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Katja Reinhardt
- Technische Universität München, Catalysis Research Center & Department of Chemistry, Ernst-Otto-Fischer-Straße 1, 85748 Garching bei München, Germany
| | - Sebastian Koller
- Technische Universität München, Catalysis Research Center & Department of Chemistry, Ernst-Otto-Fischer-Straße 1, 85748 Garching bei München, Germany
| | - Philippe Klein
- Technische Universität München, Catalysis Research Center & Department of Chemistry, Ernst-Otto-Fischer-Straße 1, 85748 Garching bei München, Germany
| | - Corvin Lossin
- Technische Universität München, Catalysis Research Center & Department of Chemistry, Ernst-Otto-Fischer-Straße 1, 85748 Garching bei München, Germany
| | - Julia Gatzka
- Technische Universität München, Catalysis Research Center & Department of Chemistry, Ernst-Otto-Fischer-Straße 1, 85748 Garching bei München, Germany
| | - Philipp J. Altmann
- Technische Universität München, Catalysis Research Center & Department of Chemistry, Ernst-Otto-Fischer-Straße 1, 85748 Garching bei München, Germany
| | - Alexander Pöthig
- Technische Universität München, Catalysis Research Center & Department of Chemistry, Ernst-Otto-Fischer-Straße 1, 85748 Garching bei München, Germany
| | - Lukas Hintermann
- Technische Universität München, Catalysis Research Center & Department of Chemistry, Ernst-Otto-Fischer-Straße 1, 85748 Garching bei München, Germany
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