Abstract
Hantzsch 1,4-dihydropyridine (HEH) was used to realize the selective reduction of the exocyclic double bond of 4-arylmethylene- and 4-alkylidene-4H-isoxazol-5-ones and 4-arylmethylene-4H-pyrazol-5-ones.
Key words
Hantzsch 1,4-dihydropyridine - reduction - isoxazol-5-one - pyrazol-5-one
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