1-Aryl-3-ferrocenyl-4-formylpyrazoles were obtained from appropriate acetylferrocene arylhydrazones by the Vilsmeier—Haack reaction. Direct reductive amination of the resulting aldehydes with primary and secondary amines and amino acid esters in the presence of NaBH(OAc)3 was studied.
1-芳基-3-
铁酰基-4-甲酰基
吡唑是通过适当的乙酰
铁酰基芳基
肼与Vilsmeier—Haack反应获得的。在NaBH(OAc)3的存在下,研究了将所得醛与一级和二级胺及
氨基酸酯进行直接还原胺化的反应。