Green Synthesis Characterization and Thermotropic Behaviour of O-Linked Glycopyranosides of Phenolic Esters
Joint Authors
Nasir, Shagufta
Hussain, Erum Akbar
Nazir, Saliha
Iqbal, Dure Najaf
Daud, Hina
Ghani, Ambreen
Naz, Saima
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-31
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Focusing on green chemistry protocols, a series of carbohydrate derivatives (5a–l) have been synthesized by Fischer glycosylation of α-D-glucose, D-xylose, and α-maltose with several nonpolar phenolic ester aglycones (3a–d) derived from menthol by employing solid-supported Si-H+ as the catalyst.
In order to study the extent of mesomorphism in target molecules, the thermotropic behaviour has been studied by using the thermoanalytic DSC/TGA technique and polarized optical microscope.
Phase transitions in the DSC thermograms of 5a–l with two endothermic melting point peaks and various exothermic crystalline transitions exhibits the existence of mesophases.
However, optical photomicrographs revealed that the new glycopyranosides formed smectic A phases.
Moreover, all the compounds (3a–d and 5a–l) were confirmed by FTIR and 1H NMR.
American Psychological Association (APA)
Nazir, Saliha& Iqbal, Dure Najaf& Daud, Hina& Ghani, Ambreen& Nasir, Shagufta& Naz, Saima…[et al.]. 2020. Green Synthesis Characterization and Thermotropic Behaviour of O-Linked Glycopyranosides of Phenolic Esters. Journal of Chemistry،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1181572
Modern Language Association (MLA)
Nazir, Saliha…[et al.]. Green Synthesis Characterization and Thermotropic Behaviour of O-Linked Glycopyranosides of Phenolic Esters. Journal of Chemistry No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1181572
American Medical Association (AMA)
Nazir, Saliha& Iqbal, Dure Najaf& Daud, Hina& Ghani, Ambreen& Nasir, Shagufta& Naz, Saima…[et al.]. Green Synthesis Characterization and Thermotropic Behaviour of O-Linked Glycopyranosides of Phenolic Esters. Journal of Chemistry. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1181572
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1181572