ABSTRACT An efficient 1,6‐conjugate addition for the construction of C–N bonds from the reaction of para ‐Quinone methides ( p ‐QMs) and the weak nucleophilic nitrogen atom of imides was reported. Studies have shown that trimethylamine (Et 3 N) is an essential catalyst for ensuring the successful completion of this synthesis process. The reaction features a wide range of substrates, simple operation, good group tolerance, and high yields.
A Thu, study studied this question.