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The use of isoxazoline and isoxazole scaffolding in the design of novel thiourea and amide liquid-crystalline compounds.
Beilstein Journal of Organic Chemistry ( IF 2.2 ) Pub Date : 2020-02-06 , DOI: 10.3762/bjoc.16.20 Itamar L Gonçalves 1 , Rafaela R da Rosa 2 , Vera L Eifler-Lima 1 , Aloir A Merlo 3
Beilstein Journal of Organic Chemistry ( IF 2.2 ) Pub Date : 2020-02-06 , DOI: 10.3762/bjoc.16.20 Itamar L Gonçalves 1 , Rafaela R da Rosa 2 , Vera L Eifler-Lima 1 , Aloir A Merlo 3
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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.
中文翻译：
异恶唑啉和异恶唑支架在新型硫脲和酰胺液晶化合物设计中的应用。
合成了一系列含有5-元异恶唑啉和异恶唑环的新型硫脲和酰胺液晶，并研究了液晶性质。使用苯甲酰氯，芳基胺和硫氰酸铵的缩合反应获得硫脲。另一方面，酰胺是定量反应的副产物，其使用氰酸钾作为起始原料。硫脲和酰胺衍生物主要是SmA中间相电感。仅对硫脲和含有异恶唑环的酰胺观察到向列中间相。另外，液晶行为还取决于5元杂环上氮和氧原子的相对位置。
更新日期：2020-02-07
中文翻译：
异恶唑啉和异恶唑支架在新型硫脲和酰胺液晶化合物设计中的应用。
合成了一系列含有5-元异恶唑啉和异恶唑环的新型硫脲和酰胺液晶，并研究了液晶性质。使用苯甲酰氯，芳基胺和硫氰酸铵的缩合反应获得硫脲。另一方面，酰胺是定量反应的副产物，其使用氰酸钾作为起始原料。硫脲和酰胺衍生物主要是SmA中间相电感。仅对硫脲和含有异恶唑环的酰胺观察到向列中间相。另外，液晶行为还取决于5元杂环上氮和氧原子的相对位置。
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