5765-44-6, 5-Methylisoxazole is a Isoxazoles compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
EXAMPLE 1 Ethyl 2-amino-5-cyano-6-methyl-4-(3-phenyl-1,7-naphthyridin-5-yl)-1,4-dihydropyridine-3-carboxylate STR24 2 g (8.5 mmol) of 3-phenyl-1,7-naphthyridine-5-carboxaldehyde are suspended in 20 ml of ethanol and stirred with 0.7 ml (8.5 mmol) of 5-methylisoxazole. A solution of 196 mg of sodium in 14 ml of ethanol is added and the mixture is stirred for 2 hours at 50 C. 1.42 g of ethyl amidinoacetate hydrochloride and 0.51 ml (8.5 mmol) of acetic acid are added and the mixture is boiled for 16 hours. After cooling, 10 g of silica gel are added and the mixture is concentrated in vacuo. The residue is chromatographed on a silica gel column using toluene/ethyl acetate mixtures. After concentration of the pure fractions, the product is crystallized by trituration with ether. 2 g of crystals are obtained.
As the paragraph descriping shows that 5765-44-6 is playing an increasingly important role.
Reference£º
Patent; Bayer Aktiengesellschaft; US5434153; (1995); A;,
Isoxazole – Wikipedia
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