Structural elucidation of adducts formed by ninhydrin with indoles and thiourea by 13C-NMR spectroscopy
作者:Nithiananda Chatterjie、Ralph A. Stephani、Charles H. Strom
DOI:10.1002/jps.2600691221
日期:1980.12
prepared by the reaction of ninhydrin with indole and 2,5-dimethylindole. The structures of these 1:1 adducts were assigned as 3-(2-hydroxy-2-indane-1,3-dionyl)indole and 3-(2-hydroxy-2-indane-1,3-dionyl)-2,5-dimethylindole, respectively, on the basis of spectral data including 13C-NMR evidence. 13C-NMR also was used to confirm the structure of a thiourea-ninhydrin adduct as a substituted thioindeno[1
通过茚三酮与吲哚和2,5-二甲基吲哚的反应制备缩合产物。这些1:1加合物的结构被指定为3-(2-羟基-2-茚满-1,3-二酰)吲哚和3-(2-羟基-2-茚满-1,3-二酰)-2, 5-二甲基吲哚分别基于包括13 C-NMR证据在内的光谱数据确定。13 C-NMR也用于证实作为取代的硫代腺苷[1,2-d]咪唑-2,8-二酮的硫脲-茚三酮加合物的结构。