Treatment of ketones with dihalomethane (CH2Br2, CH2ClI, and CH2I2) in the presence of secondary amine, preferably pyrrolidine, gave the corresponding Mannich base in varing yields depending on the substrate and/or combination of the reagents.
在仲胺(最好是
吡咯烷)存在下,用二卤
甲烷(
CH2Br2、
CH2ClI 和
CH2I2)处理
酮类,根据底物和/或试剂组合的不同,可以得到相应的曼尼希碱,产率也不同。