A novel one-pot synthesis of 2-arylpyrazoloquinolinone derivatives

DOI: 10.1016/j.tet.2012.04.093

Source and publish data:

Tetrahedron p. 5920 - 5924 (2012)

Update date:2022-07-29

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Authors:

Chang, En-Chiuan

Wen, Ya-Lan

Chang, Chun-Hsi

Shen, Yun-Hwei

Wen, Shaw-Bing

Yeh, Mou-Yung

Wong, Fung Fuh

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Article abstract of DOI:10.1016/j.tet.2012.04.093

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 steps.

Full text of DOI:10.1016/j.tet.2012.04.093

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Product name:ethyl 3-bromo-1-(4-fluorophenyl)-1H-pyrazole-4-carboxylate

Cas No:1383677-80-2

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