A New Type of Banana Shape Bifunctional Monomer of Ester Chalcones
A synthesis of a new type of chalcone analogue banana-shaped liquid crystals compounds is described. The approach involved the reaction of hydroxyl chalcones with isophthaloyl dichloride to form benzene-1,3-dicarbonyl-bis-1-(4-alkoxyphenyl)-3-(4-hydroxylphenyl)prop-2-en-1-one (7a-c and 8a-c) having...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Ibnu Sina Institute.
2014
|
| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/87/ http://ir.unimas.my/id/eprint/87/1/A%20new%20type%20of%20banana%20shape%20bifunctional%20monomer%20of%20ester%20chalcones%20%28abstract%29.pdf |
| _version_ | 1848834484027260928 |
|---|---|
| author | Zainab, Ngaini Mei Chee, Chua Lian, Chin Lim |
| author_facet | Zainab, Ngaini Mei Chee, Chua Lian, Chin Lim |
| author_sort | Zainab, Ngaini |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | A synthesis of a new type of chalcone analogue banana-shaped liquid crystals compounds is described. The approach involved the reaction of hydroxyl chalcones with isophthaloyl dichloride to form benzene-1,3-dicarbonyl-bis-1-(4-alkoxyphenyl)-3-(4-hydroxylphenyl)prop-2-en-1-one (7a-c and 8a-c) having two chalcone units via esterification reaction. The hydroxyl chalcones, which differ in the length of alkyl group, CnH2n+1, where n= 10, 12 and 14 were synthesised via Claisen Schmidt condensation prior to the reaction with isophthaloyl dichloride. The reaction was a catalyst dependence. No sign of product was formed by employing NaH (60%). It was only occurred in the presence of NaH (95%) to afford banana shape bi-functional monomer of ester chalcone 7a-c and 8a-c. The synthesized compound was characterized by 1H and 13C Nuclear Magnetic Resonance (NMR), and Fourier Transform Infrared (FTIR). |
| first_indexed | 2025-11-15T05:52:42Z |
| format | Article |
| id | unimas-87 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T05:52:42Z |
| publishDate | 2014 |
| publisher | Ibnu Sina Institute. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-872016-12-28T06:43:07Z http://ir.unimas.my/id/eprint/87/ A New Type of Banana Shape Bifunctional Monomer of Ester Chalcones Zainab, Ngaini Mei Chee, Chua Lian, Chin Lim Q Science (General) QD Chemistry T Technology (General) TP Chemical technology A synthesis of a new type of chalcone analogue banana-shaped liquid crystals compounds is described. The approach involved the reaction of hydroxyl chalcones with isophthaloyl dichloride to form benzene-1,3-dicarbonyl-bis-1-(4-alkoxyphenyl)-3-(4-hydroxylphenyl)prop-2-en-1-one (7a-c and 8a-c) having two chalcone units via esterification reaction. The hydroxyl chalcones, which differ in the length of alkyl group, CnH2n+1, where n= 10, 12 and 14 were synthesised via Claisen Schmidt condensation prior to the reaction with isophthaloyl dichloride. The reaction was a catalyst dependence. No sign of product was formed by employing NaH (60%). It was only occurred in the presence of NaH (95%) to afford banana shape bi-functional monomer of ester chalcone 7a-c and 8a-c. The synthesized compound was characterized by 1H and 13C Nuclear Magnetic Resonance (NMR), and Fourier Transform Infrared (FTIR). Ibnu Sina Institute. 2014 Article PeerReviewed text en http://ir.unimas.my/id/eprint/87/1/A%20new%20type%20of%20banana%20shape%20bifunctional%20monomer%20of%20ester%20chalcones%20%28abstract%29.pdf Zainab, Ngaini and Mei Chee, Chua and Lian, Chin Lim (2014) A New Type of Banana Shape Bifunctional Monomer of Ester Chalcones. Malaysian Journal of Fundamental and Applied Sciences, 10 (2). pp. 53-58. ISSN 1823-626X http://mjfas.ibnusina.utm.my/index.php/jfs/article/view/365 |
| spellingShingle | Q Science (General) QD Chemistry T Technology (General) TP Chemical technology Zainab, Ngaini Mei Chee, Chua Lian, Chin Lim A New Type of Banana Shape Bifunctional Monomer of Ester Chalcones |
| title | A New Type of Banana Shape Bifunctional Monomer of Ester Chalcones |
| title_full | A New Type of Banana Shape Bifunctional Monomer of Ester Chalcones |
| title_fullStr | A New Type of Banana Shape Bifunctional Monomer of Ester Chalcones |
| title_full_unstemmed | A New Type of Banana Shape Bifunctional Monomer of Ester Chalcones |
| title_short | A New Type of Banana Shape Bifunctional Monomer of Ester Chalcones |
| title_sort | new type of banana shape bifunctional monomer of ester chalcones |
| topic | Q Science (General) QD Chemistry T Technology (General) TP Chemical technology |
| url | http://ir.unimas.my/id/eprint/87/ http://ir.unimas.my/id/eprint/87/ http://ir.unimas.my/id/eprint/87/1/A%20new%20type%20of%20banana%20shape%20bifunctional%20monomer%20of%20ester%20chalcones%20%28abstract%29.pdf |