One-pot expeditious synthesis of pyrazoloindolones via base promoted electrocyclization, C-N coupling and intramolecular oxidative cyclization
作者:Harshita Singh Korawat、Manoj Kumar Saini、Karmdeo Prajapati、Maya Shankar Singh、Ashok Kumar Basak
DOI:10.1055/a-2316-5200
日期:——
Pyrazoloindolones are synthesized from N-tosylhydrazones in a one-pot multistep process which include base-promoted (i) electrocyclization reaction of N-tosylhydrazones derived from α,β-unsaturated aldehydes, (ii) aromatic nucleophilic substitution, and (iii) a domino cyclization–oxidation process under aerobic conditions.
吡唑并吲哚酮是由N-甲苯磺酰腙通过一锅多步工艺合成的,该工艺包括碱促进的 (i)衍生自 α,β-不饱和醛的N-甲苯磺酰腙的电环化反应,(ii) 芳香族亲核取代,以及 (iii) 多米诺骨牌有氧条件下的环化-氧化过程。