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Synthesis of crown ethers bearing 2,4‐dinitrophenylhydrazone
Author(s) -
Abdurrahmanoglu Saziye,
Bulut Mustafa
Publication year - 2007
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570440132
Subject(s) - chemistry , hydrazone , proton nmr , elemental analysis , nmr spectra database , organic chemistry , medicinal chemistry , stereochemistry , spectral line , physics , astronomy
The o ‐dihydroxy‐ ( 2a‐b ), dimethoxy ( 3a‐b ), ethylendioxy‐ ( 4a‐b ) and macrocyclic polyethers ( 4c‐i ) are the initial compounds while the 2,4‐dinitrophenylhydrazone compounds ( 5a‐d, 6a‐i ) represent new derivatives. Novel hydrazone compounds were synthesized from the corresponding cyclic ketones ( 4a‐i ) and 2,4‐dinitrophenylhydrazine in H 2 SO 4 /EtOH/H 2 O solution at room temperature for 1 h. The structures of obtained hydrazone compounds were confirmed by 1 H‐NMR, 13 C‐NMR, EI‐MS, IR spectra and elemental analysis.