Synthesis and Anisotropic Properties of Novel Asymmetric Diones Fused With 1,3-Oxazepine and Oxazepane Rings
作者:Guan-Yeow Yeap、Abdulkarim-Talaq Mohammad、Hasnah Osman
DOI:10.1080/15421406.2011.591687
日期:2012.1.1
CnH2n+1, in which n ranges from 6 to 18, were employed in the present study. The molecular structures of these compounds were substantiated by Fourier transformed infrared and nuclear magnetic resonance along with elemental analysis. The correlation between the structures and the mesomorphic behaviors of N-(4-(tetradecyloxy)benzylidene)alkylamines and their derivatives was investigated. Present work
含七元 1,3-oxazepine-4,7-dioone、5,6-dihydro-1,3-oxazepane-4,7-dioone 和 5,6-benzo[e] 的杂环液晶化合物的新合成[1, 3] oxazepine-4,7-diones 环在对位是通过马来酸、琥珀酸和邻苯二甲酸酐与 N-(4-(十四烷氧基) 亚苄基) 烷基胺的反应进行的。本研究采用了不同长度的偶数位烷基链 CnH2n+1,其中 n 的范围为 6 到 18。这些化合物的分子结构由傅里叶变换红外和核磁共振以及元素分析证实。研究了N-(4-(十四烷氧基)亚苄基)烷基胺及其衍生物的结构与介晶行为之间的相关性。目前的工作表明,中间相的形成强烈依赖于核心部分的类型。尽管具有烷基链 CnH2n+1 (n = 6-14) 的亚胺表现出近晶 A (SmA) 相,但仅在 3,4-二氢苯并[e][1, 3] oxazepine