Synthesis, IR-, NMR- and X-ray investigations on some novel N-hetaryl-dihydro-pyrazolyl ferrocenes. Study on ferrocenes, part 16 ☆
作者： Veronika Kudar , Virág Zsoldos-Mády , Kálmán Simon , Antal Csámpai , Pál Sohár
DOI: 10.1016/J.JORGANCHEM.2005.05.045
关键词: Stereochemistry 、 Diffraction 、 13c nmr spectroscopy 、 X-ray 、 DEPT 、 Crystallography 、 Chemistry 、 Lower yield
摘要: Abstract Cyclocondensation of 1-aryl-3-ferrocenyl-2-propen-1-ones (1) with hetaryl hydrazines resulted in N-hetaryl-3-aryl-5-ferrocenyl pyrazolines (3, 4). The analogous 3-aryl-1-ferrocenyl-2-propen-1-ones (5) gave the isomeric N-hetaryl-5-aryl-3-ferrocenyl-pyrazolines (6, 10), but lower yield. reaction aryl-chalcones (7) 4-hydrazino-phthalazinone led to 3,5-bis-aryl-N-hetaryl-pyrazolines (8) or corresponding ene-hydrazones (9). structure new compounds was established by IR, 1H and 13C NMR spectroscopy, including DNOE, HMQC, HMBC DEPT methods. For 1b, 3b 8b stereo elucidated also X-ray diffraction.
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