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Eurasian Chemico-Technological Journal

ISSN
1562-3920
2522-4867
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Catalysis and Oxidati...

Catalysts for Methane...

Adsorption and biosor...

Catalytic Processes i...

Petroleum Processing ...

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20221

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    Novel 7-Aryliden-3,3a,4,5,6,7-(hexahydro-5-(2-ethoxyethyl)-2-phenyl- 3-aryl-2H-pyrazolo[4,3-c]pyridine Hydrochloride: Synthesis and Structure
    (2022-03-31)
    Zh.A. Koshetova
    ;
    V. К. Yu
    ;
    Iskakova Tynyshtyk Kadyrovna
    ;
    N. A. Zhumanova
    ;
    Kayrat M. Beketov
    A Claisen-Schmidt type reaction of 1-(2-ethoxyethyl)piperidin-4-one with differ­ent aromatic aldehydes led to corresponding dienones with a yield of 65‒71%. 7-Arylidene-3,3a,4,5,6,7-(hexahydro-5-(2-ethoxyethyl)-2-phenyl-3-aryl-2H-pyrazolo[4,3-c]pyridines were synthesized by heterocyclization of 3,5-dia­rylidene-piperidin-4-ones with phenylhydrazine hydrochloride in methanol at 70 °C over 4‒6 h. The X-ray crystal structure determination of 7-(p-methoxy­benzyliden)-3,3a,4,5,6,7-(hexahydro-5-(2-ethoxyethyl)-2-phenyl-3-(p-methoxy­phenyl)-2H-pyrazolo[4,3-c]pyridine hydrochloride (the deposition number is CCDC 862410) was completed. The piperidine and pyrazoline rings are close to a chair and envelope conformations, respectively.