Abstract A series of 1-aryl-1, 2-dihydrobenzo [f] quinolin-3 (4 H)-one derivatives and 4-aryl-7, 7-dimethyl-5-oxo-3, 4, 5, 6, 7, 8-hexahydrocoumarin derivatives have been synthesized by one-pot multicomponent reaction of Meldrum's acid with benzaldehyde, naphthalene-2- amine, or cyclohexanedione in PEG-400. The method has the advantages of mild reaction conditions, good yields, and easy processing, and is environmentally benign.
![1-(4-methoxyphenyl)-2,4-dihydro-1H-benzo[f]quinolin-3-one Structure](https://image.chemsrc.com/caspic/276/64257-38-1.png)