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Székely E, Simándi B, Fogassy E, Kemény S, Kmecz I. Enantioseparation of chiral alcohols by complex formation and subsequent supercritical fluid extraction. Chirality 2003; 15:783-6. [PMID: 14556215 DOI: 10.1002/chir.10295] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The very first application of supercritical fluid extraction (SFE) on enantioseparation of alcohols is discussed. Resolution of three chiral alcohols (trans-2-chloro-cyclohexanol, trans-2-bromo-cyclohexanol, and trans-2-iodo-cyclohexanol) were performed by partial complexation with (-)-O,O'-dibenzoyl-(2R,3R)-tartaric acid monohydrate (DBTA). DBTA formed diastereomeric complexes with all S,S-enantiomers stable enough to extract the unreacted alcohols with supercritical carbon dioxide. Resolution efficiency increased with the size of halogen substituents, and by the proper selection of molar ratio, pure (-)-R,R-trans-2-iodo-cyclohexanol (ee > 99%, yield: 39%) or (+)-S,S-trans-2-iodo-cyclohexanol (ee = 98%, yield: 8%) were prepared in one process step. Achieved resolution efficiency values were much higher in all resolution procedures than in any other known enantioseparation of these racemic compounds. The developed method offers an environmentally friendly, efficient alternative of currently applied resolution processes, also on a preparative scale.
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Affiliation(s)
- Edit Székely
- Department of Chemical Engineering, Budapest University of Technology and Economics, H-1521 Budapest, Hungary.
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Foster N, Mammucari R, Dehghani F, Barrett A, Bezanehtak K, Coen E, Combes G, Meure L, Ng A, Regtop HL, Tandya A. Processing Pharmaceutical Compounds Using Dense Gas Technology. Ind Eng Chem Res 2003. [DOI: 10.1021/ie030219x] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Neil Foster
- School of Chemical Engineering and Industrial Chemistry, University of New South Wales, Sydney 2052, Australia; Eiffel Technologies Limited, Level 14/50 Market Street, Melbourne, Victoria 3000, Australia; and CRC for Polymers, 32 Business Park Drive, Notting Hill, Victoria 3168, Australia
| | - Raffaella Mammucari
- School of Chemical Engineering and Industrial Chemistry, University of New South Wales, Sydney 2052, Australia; Eiffel Technologies Limited, Level 14/50 Market Street, Melbourne, Victoria 3000, Australia; and CRC for Polymers, 32 Business Park Drive, Notting Hill, Victoria 3168, Australia
| | - Fariba Dehghani
- School of Chemical Engineering and Industrial Chemistry, University of New South Wales, Sydney 2052, Australia; Eiffel Technologies Limited, Level 14/50 Market Street, Melbourne, Victoria 3000, Australia; and CRC for Polymers, 32 Business Park Drive, Notting Hill, Victoria 3168, Australia
| | - Angela Barrett
- School of Chemical Engineering and Industrial Chemistry, University of New South Wales, Sydney 2052, Australia; Eiffel Technologies Limited, Level 14/50 Market Street, Melbourne, Victoria 3000, Australia; and CRC for Polymers, 32 Business Park Drive, Notting Hill, Victoria 3168, Australia
| | - Keivan Bezanehtak
- School of Chemical Engineering and Industrial Chemistry, University of New South Wales, Sydney 2052, Australia; Eiffel Technologies Limited, Level 14/50 Market Street, Melbourne, Victoria 3000, Australia; and CRC for Polymers, 32 Business Park Drive, Notting Hill, Victoria 3168, Australia
| | - Emma Coen
- School of Chemical Engineering and Industrial Chemistry, University of New South Wales, Sydney 2052, Australia; Eiffel Technologies Limited, Level 14/50 Market Street, Melbourne, Victoria 3000, Australia; and CRC for Polymers, 32 Business Park Drive, Notting Hill, Victoria 3168, Australia
| | - Gary Combes
- School of Chemical Engineering and Industrial Chemistry, University of New South Wales, Sydney 2052, Australia; Eiffel Technologies Limited, Level 14/50 Market Street, Melbourne, Victoria 3000, Australia; and CRC for Polymers, 32 Business Park Drive, Notting Hill, Victoria 3168, Australia
| | - Louise Meure
- School of Chemical Engineering and Industrial Chemistry, University of New South Wales, Sydney 2052, Australia; Eiffel Technologies Limited, Level 14/50 Market Street, Melbourne, Victoria 3000, Australia; and CRC for Polymers, 32 Business Park Drive, Notting Hill, Victoria 3168, Australia
| | - Aaron Ng
- School of Chemical Engineering and Industrial Chemistry, University of New South Wales, Sydney 2052, Australia; Eiffel Technologies Limited, Level 14/50 Market Street, Melbourne, Victoria 3000, Australia; and CRC for Polymers, 32 Business Park Drive, Notting Hill, Victoria 3168, Australia
| | - Hubert L. Regtop
- School of Chemical Engineering and Industrial Chemistry, University of New South Wales, Sydney 2052, Australia; Eiffel Technologies Limited, Level 14/50 Market Street, Melbourne, Victoria 3000, Australia; and CRC for Polymers, 32 Business Park Drive, Notting Hill, Victoria 3168, Australia
| | - Andrian Tandya
- School of Chemical Engineering and Industrial Chemistry, University of New South Wales, Sydney 2052, Australia; Eiffel Technologies Limited, Level 14/50 Market Street, Melbourne, Victoria 3000, Australia; and CRC for Polymers, 32 Business Park Drive, Notting Hill, Victoria 3168, Australia
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