中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2,4-dinitrothiophenol | 2218-96-4 | C6H4N2O4S | 200.175 |
2,4-二硝基苯硫氯 | 2,4-Dinitrophenylsulfenyl chloride | 528-76-7 | C6H3ClN2O4S | 234.62 |
The β-trimethylsilyl substituent in 2-trimethylsilylethyl p-nitrobenzoate (12b) and 2-trimethylsilylethyl 2,4-dinitrobenzenesulfenate (12c) leads to significant lengthening of the C(alkyl)–O(ester) bond. Lengthening of the Si-CH2 distance in the more electronegative ester (12c) relative to (12b) is also observed. These structural effects are consistent with the presence of σC-Si–σ* C-O interactions.