ohols) with good to excellent yields. Steric hindrance does not prevent the reaction. Some amines with electron-withdrawing groups, especially at nonconjugated positions, are also alkylated. The procedure allows the combination of a reduction (catalytic or by tin dichloride in acidic media) and a methylation in a one-pot process. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)
多种
氨基取代的
萘可以通过 Me2SO4/Na2CO3/
H2O(醇)系统进行 N-全甲基化,收率非常好。空间位阻不会阻止反应。一些带有吸电子基团的胺,特别是在非共轭位置,也被烷基化。该程序允许在一锅法中将还原(催化或通过酸性介质中的二
氯化锡)和甲基化相结合。(© Wiley-
VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)