Abstract
An efficient synthesis of a series of pyrazolo[4,3-c]quinoline is reported. A multicomponent reaction was designed using isatins, 1-aryl-2-(1,1,1-triphenyl-λ5-phosphanylidene)-1-ethanone and hydrazonoyl chlorides in the presence of Et3N as a catalyst in DMF for the preparation of this class of compounds. The structure of the target molecules was confirmed by X-ray diffraction.
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