alkaloids (R3N) were directly converted to R3N+–NH− (without the need to prepare protected aminimides R3N+–NR′− followed by deprotection) by [Mn(TDCPP)Cl]-catalysed N-amination reaction, with O-(2,4-dinitrophenyl)hydroxylamine as the nitrogen source, in up to 98% yields under mild reaction conditions.
天然脂肪族叔胺
生物碱的面板(R 3 N)直接转化为R 3 Ñ + -NH - (无需制备保护的胺化
酰亚胺- [R 3 Ñ + -NR' -接着脱保护)由[Mn(上
TDCPP)
氯在温和的反应条件下,以O-(2,4-
二硝基苯基)
羟胺为氮源,经[ - ]催化的N-胺化反应,收率高达98%。