Heterocyclization, deprotection and isomerization in an intramolecular palladium-catalysed tertiary amine–allyl coupling reaction
摘要:
N-Methyl-N-allyl-2-(1-acetoxyallyl)benzylamine reacts in the presence of tetrakis(triphenylphosphine)palladium to afford a mixture of an isoindole, a 2-benzazepine and allyl acetate; the likely reaction pathway involves a multistep procedure whereby each Pd atom is implicated at least four times, the formation of the isoindole occuring first, followed by an isomerisation to the benzazepine derivative.
Heterocyclization, deprotection and isomerization in an intramolecular palladium-catalysed tertiary amine–allyl coupling reaction
摘要:
N-Methyl-N-allyl-2-(1-acetoxyallyl)benzylamine reacts in the presence of tetrakis(triphenylphosphine)palladium to afford a mixture of an isoindole, a 2-benzazepine and allyl acetate; the likely reaction pathway involves a multistep procedure whereby each Pd atom is implicated at least four times, the formation of the isoindole occuring first, followed by an isomerisation to the benzazepine derivative.