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Synthesis and single-crystal characterization of novel 2-ferrocenyl-4H-pyrazolo[5,1-c][1,4]oxazin-4-one derivatives

✍ Scribed by Yong-Sheng Xie; Bao-Xiang Zhao; Hong-Shui Lv; Ji-Kun Li; Bai-Shan Wang; Dong-Soo Shin

Book ID: 103838520
Publisher: Elsevier Science
Year: 2009
Tongue: English
Weight: 425 KB
Volume: 930
Category: Article
ISSN: 0022-2860
DOI: 10.1016/j.molstruc.2009.04.042

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✦ Synopsis

A series of novel 2-ferrocenyl-6-substituted-4H-pyrazolo [5,1-c][1,4]oxazin-4-one derivatives were synthesized by the intra-esterification reaction of ethyl 1-(2-aryl-2-oxoethyl)-3-ferrocenyl-1H-pyrazole-5carboxylate in the presence of magnesium bromide and diisopropylethylamine in one-pot procedure. The structures of compounds were characterized by 1 H NMR, 13 C NMR, IR, HRMS and X-ray diffraction analysis.

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