The preparation of aliphatic, aromatic or functionalized tartramides directly from tartaric acid and amines under microwave activation is described. The inexpensive, solvent free and fast reaction conditions are the important features of the procedure.
Supramolecular Chirality in Organo-, Hydro-, and Metallogels Derived from Bis-amides of<scp>L</scp>-(+)-Tartaric Acid: Formation of Highly Aligned 1D Silica Fibers and Evidence of 5-c Net SnS Topology in a Metallogel Network
作者:Uttam Kumar Das、Parthasarathi Dastidar
DOI:10.1002/chem.201200871
日期:2012.10.8
the gel network, which was exploited as a template to generate highlyaligned1Dsilicafibers. The gelator D‐3‐PyTA was also exploited to generate metallogels by treatment with various CuII/ZnII salts under suitable conditions. A structure–property correlation on the basis of single‐crystal and powder X‐ray diffraction data was attempted to gain insight into the structures of the gel networks in both
合成了一系列源自L -(+)-酒石酸的双酰胺,作为潜在的低分子量胶凝剂。在合成的14种双酰胺中,有13种表现出有机,水和灵巧的凝胶化行为。通过包括圆二色性,差示扫描量热法,光学和电子显微镜以及流变学在内的方法对凝胶进行表征。其中一种衍生自二-3-吡啶基酒石酰胺(D-3-PyTA)的凝胶显示出有趣的凝胶网络纳米管形态,被用作模板以生成高度对齐的一维二氧化硅纤维。胶凝剂D‐3‐PyTA也被用来通过用各种Cu II / Zn II处理生成金属盐在适当条件下的盐。试图根据单晶和粉末X射线衍射数据进行结构-性质相关性分析,以了解有机和金属凝胶中凝胶网络的结构。这项研究导致确定了基于Cu II配位聚合物的Metallogel的凝胶网络结构,该凝胶结构显示了由氯离子桥接的双螺旋制成的2D薄板结构,类似于5 c净SnS拓扑结构。