Affiliation:
1. Department of Organic Chemistry Kaunas University of Technology Kaunas Lithuania
2. Institute of Synthetic Chemistry Kaunas University of Technology Kaunas Lithuania
3. Laboratory of Physical Organic Chemistry Latvian Institute of Organic Synthesis Rīga Latvia
Abstract
AbstractSeveral series of novel biheterocyclic compounds have been synthesized starting from 3‐alkoxy‐1H‐pyrazole‐4‐carbaldehydes and employing different types of multicomponent reactions. The structures of the obtained 4‐(pyrazol‐4‐yl)pyrano[2,3‐c]pyrazole, 4‐(pyrazol‐4‐yl)pyrazolo[4′,3′:5,6]pyrano[2,3‐b]quinoline, 4‐(pyrazol‐4‐yl)pyridine, and 4‐[(pyrazol‐4‐yl)methylidene]‐1,2‐oxazole derivatives were thoroughly characterized and confirmed using detailed nuclear magnetic resonance spectroscopy (NMR), high‐resolution mass spectrometry (HRMS), infrared spectroscopy (IR), and X‐ray analysis.
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2 articles.
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