Two regioisomers of 2-arylpyrazolo [3, 4-c] quinolin-4 (5H)-ones and 2-arylpyrazolo [4, 3-c] quinolin-4 (5H)-ones were synthesized by utilizing 3-arylsydnones, ethyl 3- bromopropynoate, and 2-aminophenylboronic acid pinacol ester in presence of catalytic agent Pd (PPh3) 4. This efficient one-pot synthesis methodology involved 1, 3-dipolar cycloaddition, Suzuki coupling reaction, and intramolecular cyclization three sequence ...
![2-phenyl-5H-pyrazolo[3,4-c]quinolin-4-one Structure](https://image.chemsrc.com/caspic/346/109740-09-2.png)