作者:A. V. Zorin、A. T. Zaynashev、V. V. Zorin
DOI:10.1134/s1070428019010068
日期:2019.1
Metalation of acetic, butanoic, or 2-methylpropanoic acid with lithium diisopropylamide in tetrahydrofuran under argon gave the corresponding lithium acylate α-carbanions which reacted with carbon tetrachloride at 20–25°C for 2 h to afford butanedioic acid or its 2,3-diethyl and 2,2,3,3-tetramethyl derivatives, as well as the corresponding α-chlorocarboxylic acids and chloroform. A radical mechanism
在氩气下,于四氢呋喃中用二异丙基氨基化锂将乙酸,丁酸或2-甲基丙酸金属化,得到相应的酰化锂α-碳鎓离子,在20–25°C下与四氯化碳反应2小时,得到丁二酸或其2,3-二乙基和2,2,3,3-四甲基衍生物,以及相应的α-氯羧酸和氯仿。提出了形成二羧酸和α-氯羧酸的自由基机理。