Pyrazole-promoted synthesis of pyrrolo[3,4-c] quinoline-1,3-diones in a novel diketene-based reaction.
Rezvanian A, Esfandsar Z.
Rezvanian A, et al.
Front Chem. 2023 Sep 26;11:1219986. doi: 10.3389/fchem.2023.1219986. eCollection 2023.
Front Chem. 2023.
PMID: 37822773
Free PMC article.
We describe the first classic example of green synthesis of pyrrolo[3,4-c]quinolones scaffolds by catalyst-free unusual reaction of diketene, isatin, and primary amines in ethanol in the presence of pyrazole as a promoter for 4 h. The whole structure of the new product was …
We describe the first classic example of green synthesis of pyrrolo[3,4-c]quinolones scaffolds by catalyst-free unusual reaction of diketene …