中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
邻氯苯乙酮 | 1-(2-chlorophenyl)ethanone | 2142-68-9 | C8H7ClO | 154.596 |
The reaction of 5-aminopyrazoles with 1,3-diarylpropenes mediated by 2,3-dichloro-5,6-dicyano-1,4-benzoquinone, with subsequent intramolecular cyclization and dehydroaromatization in the presence of Cu(OTf)2/tert-butyl hydroperoxide, gave a series of pyrazolo[3,4-b]pyridines in moderate to excellent yields. The reaction has the advantages of high atom economy, a wide substrate scope, and a one-pot procedure.