89522-27-0Relevant academic research and scientific papers
Facile and Regioselective Synthesis of Substituted 1H-Pyrazolo[3,4-b]quinolines from 2-Fluorobenzaldehydes and 1H-Pyrazol-5-amines
Szlachcic, Pawe?,Kucharek, Mateusz,Jarosz, Bo?ena,Danel, Andrzej,Stadnicka, Katarzyna
, p. 1729 - 1745 (2017/05/29)
The present article concerns the scope and limitations of the regioselective condensation of 2-fluorobenzaldehydes with 1H-pyrazol-5-amines, leading to the synthesis of substituted 1H-pyrazolo[3,4-b]quinolines (PQ), in the presence of a base catalyst (DAB
Condensation of 2-Nitrobenzaldehyde with Pyrazolin-5-ones. Structure of 4-(2'-Nitrobenzylidene)pyrazolin-5-ones and their Reductive Cyclization
Danel, A.,Tomasik, P.
, p. 1013 - 1017 (2007/10/02)
The condensation of 1-H-3-methyl-, 3-methyl-1-phenyl-, 1,3-diphenyl- and 1-methyl-3-phenyl-pyrazolin-5-ones with 2-nitrobenzaldehyde resulted in forming the corresponding 4-(2'-nitrobenzylidene)pyrazolin-5-ones.In some cases these products were assisted b
Friedlaender Condensation of 1H-Pyrazolin-5-ones with o-Aminobenzaldehydes. Synthesis of 1H-Pyrazoloquinolines
Tomasik, Danuta,Tomasik, Piotr,Abramovitch, Rudolph A.
, p. 1539 - 1543 (2007/10/02)
All the possible 1- and 3-monomethyl, monophenyl, dimethyl, diphenyl, and methylphenyl-1H-pyrazolin-5-ones have been condensed with o-aminobenzaldehyde.In some cases (but not all) 1-H-pyrazoloquinolines (10) are formed together with a variety of other products.The balance between formation of hydrazone 11 and the ring-closed 10 is discussed, as is the formation of other products obtained in these condensations.
