The preparation of sixteen 3-substituted indoles in good to excellent yields under environmentally friendly conditions has been achieved via a three-component reaction in water of an indole, an aldehyde and malononitrile (or ethyl 2-cyanoacetate) catalysed by 5 mol% of 2-pyrrolecarbaldiminato-Cu(II).
通过
吲哚、醛和
丙二腈(或 2-
氰基
乙酸乙酯)在
水中的三组分反应,在 5 mol% 的 2 -pyrrolecarbaldiminato-Cu(II)。