The weak acid has been identified as an efficient basicity-mask to overcome the basicitybarrierimparted by aliphaticamines in the Pd-catalyzed hydroaminocarbonylation, which enables both aromatic and aliphaticamines to be applicable in the palladium-catalyzedhydroaminocarbonylation reaction. Notably, by using this protocol, the marketed herbicide of Propanil and drug of Fentanyl could be easily