Multinuclear NMR study of compounds resulting from the silylation of indole; evidence for a 4,5-disilylation
作者:Claude Biran、Michel Fourtinon、Blaise Efendene、Jacques Dunoguès
DOI:10.1016/0022-328x(88)80473-x
日期:1988.4
Complete assignments of the 1H, 13C and 29Si NMR data of 1-, 4- and 5-trimehylsilyl-, 1,4- and 1,5-bis(trimethylsilyl)- and 1,4,5-tris(trimethylsilyl)-indoles allowed unambiguous confirmation of the structures proposed for these products. For the trisilated derivative it was found that silylation had occurred at the 1,4,5 and not at the 1,4,7 positions as previously suggested.
1-,4-和5-三甲基甲硅烷基-,1,4-和1,5-双(三甲基甲硅烷基)-和1,4,5-三(三甲基甲硅烷基)的1 H,13 C和29 Si NMR数据的完整分配)吲哚允许对这些产品的结构进行明确确认。对于三甲硅烷基化衍生物,发现甲硅烷基化发生在1,4,5处,而不是如先前所建议的1,4,7处。