中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2,2-二甲基-1,3-二苯基丙烷-1,3-二酮 | 2,2-dimethyl-1,3-diphenylpropane-1,3-dione | 41169-42-0 | C17H16O2 | 252.313 |
Bismuth metal, activated by ammonium hydrogen fluoride, was found to reduce various α-halocarbonyl compounds efficiently and chemoselectively in aqueous media to give the dehalogenated reduction products in excellent yields.Key words: bismuth, reduction, α-halocarbonyl compounds, fluoride salts, aqueous media, bismuth enolates, aldol reaction.
Bismuth metal, upon activation by zinc fluoride, can effect the crossed aldol reaction between α-bromocarbonyl compounds and aldehydes in aqueous media. The reaction was found to be regiospecific and syn-diastereoselective.Key words: bismuth, zinc fluoride, aldol reaction, regioselectivity, aqueous media.