Introduction of <i>N</i>‐Containing Heterocycles into Pyrazole by Nucleophilic Aromatic Substitution
作者:Min‐Sup Park、Hyun‐Ja Park、Koon Ha Park、Kee‐In Lee
DOI:10.1081/scc-120030741
日期:2004.12.31
Abstract The nucleophilicaromaticsubstitution on 5‐chloropyrazoles activated by the electron‐withdrawing formyl group offers a useful method to introduce a wide range of N‐containing heterocycles into them. The rate of reaction was greatly affected by the electronic nature of the N‐1 substitution.