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Cyclodextrins Initiated Ring-Opening Polymerization of Lactide Using 4-dimethylaminopyridine (DMAP) as Catalyst: Study of DMAP/β-CD Inclusion Complex and Access to New Structures. Molecules 2022; 27:molecules27031083. [PMID: 35164347 PMCID: PMC8838909 DOI: 10.3390/molecules27031083] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 01/28/2022] [Accepted: 02/03/2022] [Indexed: 01/30/2023] Open
Abstract
Cyclodextrins (CDs) are cyclic oligosaccharides used in many fields. Grafting polymers onto CDs enables new structures and applications to be obtained. Polylactide (PLA) is a biobased, biocompatible aliphatic polyester that can be grafted onto CDs by -OH-initiated ring-opening polymerization. Using 4-dimethylaminopyridine (DMAP) as an organocatalyst, a quantitative functionalization is reached on native α-, β-, γ- and 2,3-dimethyl- β-cyclodextrins. Narrow molecular weight distributions are obtained with the native CDs (dispersity < 1.1). The DMAP/β-CD combination is used as a case study, and the formation of an inclusion complex (1/1) is shown for the first time in the literature, which is fully characterized by NMR. The inclusion of DMAP into the cavity occurs via the secondary rim of the β-CD and the association constant (Ka) is estimated to be 88.2 M−1. Its use as an initiator for ring-opening polymerization leads to a partial functionalization efficiency, and thus a more hydrophilic β-CD-PLA conjugate than that obtained starting from native β-CD. Polymerization results including also the use of the adamantane/β-CD inclusion complex as an initiator suggest that inclusion of the DMAP catalyst into the CD may not occur during polymerization reactions. Rac-lactide does not form an inclusion complex with β-CD.
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Hui BY, Raoov M, Zain NNM, Mohamad S, Osman H. Combination of Cyclodextrin and Ionic Liquid in Analytical Chemistry: Current and Future Perspectives. Crit Rev Anal Chem 2017; 47:454-467. [DOI: 10.1080/10408347.2017.1320936] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Boon Yih Hui
- Integrative Medicine Cluster, Advanced Medical & Dental Institute, Universiti Sains Malaysia, Pulau Pinang, Malaysia
| | - Muggundha Raoov
- Integrative Medicine Cluster, Advanced Medical & Dental Institute, Universiti Sains Malaysia, Pulau Pinang, Malaysia
| | - Nur Nadhirah Mohamad Zain
- Integrative Medicine Cluster, Advanced Medical & Dental Institute, Universiti Sains Malaysia, Pulau Pinang, Malaysia
| | - Sharifah Mohamad
- Department of Chemistry, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
- Universiti Malaya Centre for Ionic Liquids (UMCiL), Department of Chemistry, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Hasnah Osman
- School of Chemical Sciences, Universiti Sains Malaysia, Pulau Pinang, Malaysia
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Recent developments in cyclodextrin functionalized monolithic columns for the enantioseparation of chiral drugs. J Pharm Biomed Anal 2016; 130:110-125. [DOI: 10.1016/j.jpba.2016.05.023] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/06/2016] [Accepted: 05/15/2016] [Indexed: 01/09/2023]
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Zhang M, Mallik AK, Takafuji M, Ihara H, Qiu H. Versatile ligands for high-performance liquid chromatography: An overview of ionic liquid-functionalized stationary phases. Anal Chim Acta 2015; 887:1-16. [DOI: 10.1016/j.aca.2015.04.022] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 04/09/2015] [Accepted: 04/10/2015] [Indexed: 01/26/2023]
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Raoov M, Mohamad S, bin Abas MR, Surikumaran H. New macroporous β-cyclodextrin functionalized ionic liquid polymer as an adsorbent for solid phase extraction with phenols. Talanta 2014; 130:155-63. [DOI: 10.1016/j.talanta.2014.06.067] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 06/26/2014] [Accepted: 06/28/2014] [Indexed: 10/25/2022]
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Supercritical fluid chromatography as a tool for enantioselective separation; A review. Anal Chim Acta 2014; 821:1-33. [DOI: 10.1016/j.aca.2014.02.036] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 01/31/2014] [Accepted: 02/22/2014] [Indexed: 12/14/2022]
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Li X, Zhou Z. Enantioseparation performance of novel benzimido-β-cyclodextrins derivatized by ionic liquids as chiral stationary phases. Anal Chim Acta 2014; 819:122-9. [DOI: 10.1016/j.aca.2014.02.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2013] [Revised: 02/10/2014] [Accepted: 02/15/2014] [Indexed: 10/25/2022]
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Noorashikin MS, Raoov M, Mohamad S, Abas MR. Cloud point extraction of parabens using non-ionic surfactant with cylodextrin functionalized ionic liquid as a modifier. Int J Mol Sci 2013; 14:24531-48. [PMID: 24351832 PMCID: PMC3876126 DOI: 10.3390/ijms141224531] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 11/12/2013] [Accepted: 11/13/2013] [Indexed: 11/16/2022] Open
Abstract
A cloud point extraction (CPE) process using non-ionic surfactant (DC193C) to extract selected paraben compounds from water samples was investigated using reversed phase high performance liquid chromatography (RP-HPLC). The CPE process with the presence of β-cyclodextrin (βCD) functionalized ionic liquid as a modifier (CPE-DC193C-βCD-IL) is a new extraction technique that has been applied on the optimization of parameters, i.e., pH, βCD-IL concentration and phase volume ratio. This CPE-DC193C-βCD-IL method is facilitated at 30 °C, showing great losses of water content in the surfactant-rich phase, resulting in a high pre-concentration factor and high distribution coefficient. The developed method CPE-DC193C-βCD-IL did show enhanced properties compared to the CPE method without the modifier (CPE-DC193C). The developed method of CPE-DC193C-βCD-IL gives an excellent performance on the detection of parabens from water samples with the limit of detection falling in the range of 0.013-0.038 µg mL-1. Finally, the inclusion complex formation, hydrogen bonding, and π-π interaction between the βCD-IL, benzyl paraben (ArP), and DC 193C were proven using 1H NMR and 2D NOESY spectroscopy.
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Affiliation(s)
- Md Saleh Noorashikin
- Environmental Research Group, Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia; E-Mail: (M.R.A)
- Department of Chemical Sciences, Faculty of Science and Technology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Malaysia; E-Mail:
| | - Muggundha Raoov
- Environmental Research Group, Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia; E-Mail: (M.R.A)
- Advanced Medical & Dental Institute, University of Science Malaysia, No 1–8 (Lot 8), Persiaran Seksyen 4/1, Bandar Putra Bertam, Kepala Batas, Pulau Pinang 13200, Malaysia; E-Mail:
| | - Sharifah Mohamad
- Environmental Research Group, Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia; E-Mail: (M.R.A)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +603-7967-4399; Fax: +603-7967-4193
| | - Mhd Radzi Abas
- Environmental Research Group, Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia; E-Mail: (M.R.A)
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Costa N, Matos S, Gomes da Silva MDR, Pereira MMA. Cyclodextrin-Based Ionic Liquids as Enantioselective Stationary Phases in Gas Chromatography. Chempluschem 2013; 78:1466-1474. [DOI: 10.1002/cplu.201300229] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 08/28/2013] [Indexed: 11/06/2022]
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Xiao Y, Ng SC, Tan TTY, Wang Y. Recent development of cyclodextrin chiral stationary phases and their applications in chromatography. J Chromatogr A 2012; 1269:52-68. [DOI: 10.1016/j.chroma.2012.08.049] [Citation(s) in RCA: 157] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2012] [Revised: 07/28/2012] [Accepted: 08/14/2012] [Indexed: 01/13/2023]
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Wang RQ, Ong TT, Tang W, Ng SC. Cationic cyclodextrins chemically-bonded chiral stationary phases for high-performance liquid chromatography. Anal Chim Acta 2012; 718:121-9. [PMID: 22305907 DOI: 10.1016/j.aca.2011.12.063] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 12/13/2011] [Accepted: 12/24/2011] [Indexed: 10/14/2022]
Abstract
Two covalently bonded cationic β-CD chiral stationary phases (CSPs) prepared by graft polymerization of 6(A)-(3-vinylimidazolium)-6-deoxyperphenylcarbamate-β-cyclodextrin chloride or 6(A)-(N,N-allylmethylammonium)-6-deoxyperphenylcarbamoyl-β-cyclodextrin chloride onto silica gel were successfully applied in high-performance liquid chromatography (HPLC). Their enantioseparation capability was examined with 12 racemic pharmaceuticals and 6 carboxylic acids. The results indicated that imidazolium-containing β-CD CSP afforded more favorable enantioseparations than that containing ammonium moiety under normal-phase HPLC. The cationic moiety on β-CD CSPs could form strong hydrogen bonding with analytes in normal-phase liquid chromatography (NPLC) to enhance the analytes' retention and enantioseparations. In reversed-phase liquid chromatography (RPLC), the analytes exhibited their maximum retention when the pH of mobile phase was close to their pK(a) value. Inclusion complexation with CD cavity and columbic/ionic interactions with cationic substituent on the CD rim would afford accentuated retention and enantioseparations of the analytes.
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Affiliation(s)
- Ren-Qi Wang
- Division of Chemical and Biomolecular Engineering, College of Engineering, Nanyang Technological University, Singapore, Singapore
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Zhou J, Dai Y, Wang S, Zhu E, Hai J, Liu Y, Tang J, Tang W. Monosubstituted dually cationic cyclodextrins for stronger chiral recognition. RSC Adv 2012. [DOI: 10.1039/c2ra20086d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Wang RQ, Ong TT, Ng SC. Chemically bonded cationic β-cyclodextrin derivatives and their applications in supercritical fluid chromatography. J Chromatogr A 2011; 1224:97-103. [PMID: 22236564 DOI: 10.1016/j.chroma.2011.12.053] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 12/13/2011] [Accepted: 12/15/2011] [Indexed: 10/14/2022]
Abstract
Cationic β-cyclodextrin (CD) perphenylcarbamoylated derivatives were chemically bonded onto vinylized silica using a radical co-polymerization reaction. The derived materials were used as chiral stationary phases (CSP) in supercritical fluid chromatography (SFC). Enantioseparations were successfully demonstrated on 14 racemates encompassing flavanones, thiazides and amino acid derivatives. The electrostatic force between the analytes and the cationic moiety on β-CD derivative was found to be important for retention and enantioseparation of the racemates. Aromatic cationic moiety on β-CD enabled better enantioseparations than aliphatic cationic moiety. It was also found that the presence of acid additives would result in lower retention of the analytes but often assist the chiral resolutions.
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Affiliation(s)
- Ren-Qi Wang
- Division of Chemical and Biomolecular Engineering, College of Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
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Tan HM, Soh SF, Zhao J, Yong EL, Gong Y. Preparation and application of methylcalix[4]resorcinarene-bonded silica particles as chiral stationary phase in high-performance liquid chromatography. Chirality 2011; 23 Suppl 1:E91-7. [DOI: 10.1002/chir.20983] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2010] [Accepted: 05/10/2011] [Indexed: 01/06/2023]
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Zhao J, Tan D, Chelvi ST, Yong E, Lee HK, Gong Y. Preparation and application of rifamycin-capped (3-(2-O-β-cyclodextrin)-2-hydroxypropoxy)-propylsilyl-appended silica particles as chiral stationary phase for high-performance liquid chromatography. Talanta 2010; 83:286-90. [DOI: 10.1016/j.talanta.2010.08.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Revised: 08/20/2010] [Accepted: 08/21/2010] [Indexed: 11/16/2022]
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16
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Zhao J, Thamarai Chelvi SK, Tan D, Yong EL, Lee HK, Gong Y. Development of Vancomycin-Capped β-CD-Bonded Silica Particles as Chiral Stationary Phase for LC. Chromatographia 2010. [DOI: 10.1365/s10337-010-1788-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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17
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Affiliation(s)
- Timothy J. Ward
- Millsaps College, 1701 N. State Street, Box 150306, Jackson, Mississippi 39210
| | - Karen D. Ward
- Millsaps College, 1701 N. State Street, Box 150306, Jackson, Mississippi 39210
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Affiliation(s)
- Larry T. Taylor
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061-0212
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Lin C, Luo W, Zhang S, Zhang Z, Zhang W, Zheng S, Fan J, Li W, Qin Q, Guo Z. Phenylcarbamoylated β-CD: π-Acidic and π-basic chiral selectors for HPLC. J Sep Sci 2010; 33:1558-62. [DOI: 10.1002/jssc.200900826] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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20
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Application of charged single isomer derivatives of cyclodextrins in capillary electrophoresis for chiral analysis. J Chromatogr A 2010; 1217:953-67. [DOI: 10.1016/j.chroma.2009.11.094] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2009] [Revised: 11/30/2009] [Accepted: 11/30/2009] [Indexed: 11/19/2022]
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21
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Boffa L, Gaudino EC, Martina K, Jicsinszky L, Cravotto G. A new class of cationic cyclodextrins: synthesis and chemico-physical properties. NEW J CHEM 2010. [DOI: 10.1039/c0nj00021c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Thamarai Chelvi SK, Yong EL, Gong Y. Application of bromoacetate-substituted β-CD-bonded silica particles as chiral stationary phase for HPLC. J Sep Sci 2009; 33:74-8. [DOI: 10.1002/jssc.200900512] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Enantiomeric separation of acidic compounds by nano-liquid chromatography with methylated-β-cyclodextrin as a mobile phase additive. J Sep Sci 2009; 32:1696-703. [DOI: 10.1002/jssc.200800667] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Tang W, Ng SC. Monosubstituted positively charged cyclodextrins: Synthesis and applications in chiral separation. J Sep Sci 2008; 31:3246-56. [DOI: 10.1002/jssc.200800357] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Thamarai Chelvi S, Yong E, Gong Y. Preparation and evaluation of calix[4]arene-capped β-cyclodextrin-bonded silica particles as chiral stationary phase for high-performance liquid chromatography. J Chromatogr A 2008; 1203:54-8. [DOI: 10.1016/j.chroma.2008.07.021] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2008] [Revised: 07/02/2008] [Accepted: 07/08/2008] [Indexed: 11/25/2022]
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