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Peng Y, Feng C, Rohani S, He Q. Improved Resolution of 4-Chloromandelic Acid and the Effect of Chlorine Interactions Using ( R)-(+)-Benzyl-1-Phenylethylamine as a Resolving Agent. Molecules 2018; 23:E3354. [PMID: 30567355 PMCID: PMC6320892 DOI: 10.3390/molecules23123354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 12/16/2018] [Accepted: 12/17/2018] [Indexed: 11/16/2022] Open
Abstract
In order to avoid the disadvantage of commonly used resolving agent 1-phenylethylamine (hereafter: PEA), which is soluble in water, (R)-(+)-benzyl-1-phenylethylamine ((R)-(+)-BPA) was used to resolve 4-chloromandelic acid (4-ClMA) in this study. The optimal resolution conditions were determined: absolute ethanol as a solvent, the molar ratio of 4-ClMA to (R)-(+)-BPA as 1:1, the filtration temperature as 15 °C, and the amount of solvent as 1.6 mL/1 mmol 4-ClMA. Thermophysical properties, such as melting point, heat of fusion, and solubility, exhibited significant differences between the less and more soluble salts. The single crystals for the pair of diastereomeric salts were cultivated and their crystal structures were examined thoroughly. In addition to commonly observed interactions like hydrogen bonding and CH/π interactions. The chlorine…chlorine interaction was observed in the less soluble salt presenting as Cl…Cl between adjacent hydrogen network columns, while the Cl/π interaction was observed in the more soluble salt. It was found that halogen interactions played an important role in chiral recognition of 4-ClMA by (R)-(+)-BPA.
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Affiliation(s)
- Yangfeng Peng
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Cai Feng
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Sohrab Rohani
- Department of Chemical and Biochemical Engineering, Western University, London, ON N6A 5B9, Canada.
| | - Quan He
- Department of Engineering, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada.
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Wu T, Zhu JX, Wei Q, Li P, Wang LB, Huang J, Wang JH, Tang LK, Wu LJ, Li C, Han WN. Preparative separation of four isomers of synthetic anisodamine by HPLC and diastereomer crystallization. Chirality 2018; 31:11-20. [DOI: 10.1002/chir.23026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 09/04/2018] [Accepted: 09/18/2018] [Indexed: 01/23/2023]
Affiliation(s)
- Tong Wu
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Jiu-Xin Zhu
- Department of Pharmacology, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Qian Wei
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Ping Li
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Li-Bo Wang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Jian Huang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Jin-Hui Wang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Li-Ke Tang
- Hangzhou Mingsheng Institutes for Pharma Research Co., Ltd.; Hangzhou People's Republic of China
| | - Li-Jun Wu
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Chang Li
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Wei-Na Han
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
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Schmitt M, Schollmeyer D, Waldvogel SR. Efficient Resolution of Menthylamine with Inexpensive (R,R)-Tartaric Acid by Dielectrically Controlled Resolution (DCR). European J Org Chem 2013. [DOI: 10.1002/ejoc.201301566] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kitamoto Y, Suzuki K, Morohashi N, Sakai K, Hattori T. Switching of the Diastereomer Deposited during the Crystallization of N-[(S)-1-Phenylethyl]-2′-carbamoyl-1,1′-binaphthalene-2-carboxylic Acid: Investigation of the Mechanism of Dielectrically Controlled Resolution. J Org Chem 2012; 78:597-605. [PMID: 23215449 DOI: 10.1021/jo3024285] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuichi Kitamoto
- Department of Biomolecular Engineering,
Graduate School of Engineering, Tohoku University, 6-6-11 Aramaki-Aoba, Aoba-ku, Sendai 980-8579, Japan
| | - Kazumi Suzuki
- Department of Biomolecular Engineering,
Graduate School of Engineering, Tohoku University, 6-6-11 Aramaki-Aoba, Aoba-ku, Sendai 980-8579, Japan
| | - Naoya Morohashi
- Department of Biomolecular Engineering,
Graduate School of Engineering, Tohoku University, 6-6-11 Aramaki-Aoba, Aoba-ku, Sendai 980-8579, Japan
| | - Kenichi Sakai
- Technology Development Division, Toray Fine Chemicals Co., Ltd., 9-1 Oe-Cho, Minato-ku,
Nagoya 455-8502, Japan
| | - Tetsutaro Hattori
- Department of Biomolecular Engineering,
Graduate School of Engineering, Tohoku University, 6-6-11 Aramaki-Aoba, Aoba-ku, Sendai 980-8579, Japan
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Peng Y, He Q, Rohani S, Jenkins H. Resolution of 2-chloromandelic acid with (R)-(+)-N-benzyl-1-phenylethylamine: chiral discrimination mechanism. Chirality 2012; 24:349-55. [PMID: 22508329 DOI: 10.1002/chir.22013] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Accepted: 12/05/2011] [Indexed: 11/09/2022]
Abstract
During the resolution of 2-chloromandelic acid with (R)-(+)-N-benzyl-1-phenylethylamine, the crystals of the less soluble salt were grown, and their structure were determined and presented. The chiral discrimination mechanism was investigated by examining the weak intermolecular interactions (such as hydrogen bond, CH/π, and van der Waals interactions) and molecular packing mode in crystal structure of the less soluble diastereomeric salt. A one-dimensional double-chain hydrogen-bonding network and a "lock-and-key" supramolecular packing mode are disclosed. The investigation demonstrates that hydrophobic layers with corrugated surfaces can fit into the grooves of one another to realize a compact packing, when the molecular structure of resolving agent is much larger than that of the racemate. This "lock-and-key" assembly is recognized to be another characteristic of molecular packing contributing to the chiral discrimination, in addition to the well-known sandwich-like packing by hydrophobic layers with planar boundary surfaces.
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Affiliation(s)
- Yangfeng Peng
- Department of Chemical Engineering, East China University of Science and Technology, Shanghai, China
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He Q, Rohani S, Zhu J, Gomaa H. Resolution of sertraline with (R)-mandelic acid: Chiral discrimination mechanism study. Chirality 2011; 24:119-28. [DOI: 10.1002/chir.21033] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2010] [Accepted: 08/10/2011] [Indexed: 11/10/2022]
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Wang Z, Wang C, Xiu P, Qi W, Tu Y, Shen Y, Zhou R, Zhang R, Fang H. Size Dependence of Nanoscale Confinement on Chiral Transformation. Chemistry 2010; 16:6482-7. [DOI: 10.1002/chem.200903383] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Kato Y, Kitamoto Y, Morohashi N, Kuruma Y, Oi S, Sakai K, Hattori T. Crystallization-based optical resolution of 1,1′-binaphthalene-2,2′-dicarboxylic acid via 1-phenylethylamides: control by the molecular structure and dielectric property of solvent. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.02.088] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Affiliation(s)
- Timothy J Ward
- Millsaps College 1701 North State Street, Box 150306, Jackson, Mississippi 39210, USA.
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Uchida Y, Uematsu T, Nakayama Y, Takahashi H, Tsue H, Tanaka K, Tamura R. Partial resolution of racemictrans-4-[5-(4-alkoxyphenyl)-2,5-dimethylpyrrolidine-1-oxyl-2-yl]benzoic acids by the diastereomer method with (R)- or (S)-1-phenylethylamine. Chirality 2008; 20:282-7. [PMID: 17597116 DOI: 10.1002/chir.20429] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The partial resolution is described of a series of racemic trans-4-[5-(4-alkoxyphenyl)-2,5-dimethylpyrrolidine-1-oxyl-2-yl]benzoic acids (1), which are the key intermediates for the synthesis of chiral organic radical liquid crystalline compounds and are crystallized to give racemic compounds. Racemic acid 1 [(+/-)-1] with a long alkyl chain (C7 to C13) could be resolved by the conventional diastereomeric salt formation using (R)- or (S)-1-phenylethylamine (2) as the resolving agent, whereas resolution of (+/-)-1 with a short alkyl chain (C4 to C6) was unsuccessful. Use of six equiv of (R)- or (S)-2 for the initial diastereomeric salt formation of (+/-)-1 with a C7-C13 alkyl chain, followed by recrystallization of the resulting salts once or twice, gave 2S,5S- or 2R,5R-enriched 1, respectively, in an ee range of 75-92% and with an overall recovery of 11-27%, based on the original quantity of (+/-)-1.
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Affiliation(s)
- Yoshiaki Uchida
- Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan
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SAKURAI R, UCHIDA A, HATTORI T, YAMAURA M. Conformational Analysis of Diastereomeric α-Amino Nitriles. JOURNAL OF COMPUTER CHEMISTRY-JAPAN 2008. [DOI: 10.2477/jccj.h2012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Rumiko SAKURAI
- Graduate School of Environmental Studies, Tohoku University
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