The use of isoxazoline and isoxazole scaffolding in the design of novel thiourea and amide liquid-crystalline compounds
Copyright © 2020, Gonçalves et al.; licensee Beilstein-Institut..
A series of novel thiourea and amide liquid crystals containing 5-membered isoxazoline and isoxazole rings were synthetized and the liquid crystal properties studied. Thioureas were obtained using a condensation reaction of benzoyl chlorides, arylamines and ammonium thiocyanate. The amides, on the other hand, were the byproduct of a quantitative reaction which used potassium cyanate as the starting material. Thiourea and amide derivatives were predominantly SmA mesophase inductors. A nematic mesophase was observed only for thioureas and amides containing an isoxazole ring. Additionaly, the liquid crystal behavior was also dependent on the relative position of nitrogen and oxygen atoms on the 5-membered heterocycle.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:16 |
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| Enthalten in: |
Beilstein journal of organic chemistry - 16(2020) vom: 10., Seite 175-184 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Gonçalves, Itamar L [VerfasserIn] |
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| Links: |
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| Themen: |
Amides |
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| Anmerkungen: |
Date Revised 28.09.2020 published: Electronic-eCollection Citation Status PubMed-not-MEDLINE |
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| doi: |
10.3762/bjoc.16.20 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM307096076 |
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| 100 | 1 | |a Gonçalves, Itamar L |e verfasserin |4 aut | |
| 245 | 1 | 4 | |a The use of isoxazoline and isoxazole scaffolding in the design of novel thiourea and amide liquid-crystalline compounds |
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| 500 | |a Date Revised 28.09.2020 | ||
| 500 | |a published: Electronic-eCollection | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Copyright © 2020, Gonçalves et al.; licensee Beilstein-Institut. | ||
| 520 | |a A series of novel thiourea and amide liquid crystals containing 5-membered isoxazoline and isoxazole rings were synthetized and the liquid crystal properties studied. Thioureas were obtained using a condensation reaction of benzoyl chlorides, arylamines and ammonium thiocyanate. The amides, on the other hand, were the byproduct of a quantitative reaction which used potassium cyanate as the starting material. Thiourea and amide derivatives were predominantly SmA mesophase inductors. A nematic mesophase was observed only for thioureas and amides containing an isoxazole ring. Additionaly, the liquid crystal behavior was also dependent on the relative position of nitrogen and oxygen atoms on the 5-membered heterocycle | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a amides | |
| 650 | 4 | |a isoxazole | |
| 650 | 4 | |a isoxazoline | |
| 650 | 4 | |a liquid crystal | |
| 650 | 4 | |a thiourea | |
| 700 | 1 | |a da Rosa, Rafaela R |e verfasserin |4 aut | |
| 700 | 1 | |a Eifler-Lima, Vera L |e verfasserin |4 aut | |
| 700 | 1 | |a Merlo, Aloir A |e verfasserin |4 aut | |
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| 856 | 4 | 0 | |u http://dx.doi.org/10.3762/bjoc.16.20 |3 Volltext |
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