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
日期:2005.9
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 in lower yield. The reaction of aryl-chalcones (7) with 4-hydrazino-phthalazinone led to 3,5-bis-aryl-N-hetaryl-pyrazolines (8)
的1-芳基-3-二茂铁基-2-丙烯-1-酮(环缩合1)与杂芳基肼导致Ñ -hetaryl -3-芳基-5-吡唑啉二茂铁(3,4)。类似的3-芳基-1-二茂铁基-2-丙烯-1-酮(5),得到同分异构的Ñ -hetaryl -5-芳基-3-二茂铁基吡唑啉(6,10),但在较低的产率。芳基-查耳酮(7)与4-肼基-酞嗪酮的反应产生3,5-双-芳基-N-杂芳基-吡唑啉(8)或相应的烯-(9)。新化合物的结构由IR [ 1]建立。H和13 C NMR光谱,包括DNOE,HMQC,HMBC和DEPT方法。对于化合物1b,3b和8b,还通过X射线衍射阐明了立体结构。