Cocktail of three: A new strategy for iminium ion isomerization was applied to the direct, redox‐neutral α‐alkynylation of amines. Copper(II) 2‐ethylhexanoate [Cu(2‐EH)2] was identified as the optimal catalyst for this three‐component coupling reaction of secondary amines, aldehydes, and alkynes. MW=microwave.
                                    三者混合:一种新的
亚胺离子异构化策略应用于胺的直接、氧化还原中性 α-炔基化。2-乙基
己酸铜(II) [Cu(
2-EH) 2 ]被认为是仲胺、醛和炔三组分偶联反应的最佳催化剂。MW=微波。