2012
DOI: 10.1524/ncrs.2012.0196
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Crystal structure of 2-hydroxybenzylidene-5-methylisoxazole-4- carbohydrazide monohydrate, C12H13N3O4

Abstract: C 12 H 13 N 3 O 4 ,orthorhombic, Pna2 1 (no. 33), a =12.8783(6) Å,Source of material Salicylaldehyde (1.50 g, 0.01 mol) was added into asolution of 5-methyl-4-isoxazole formyl hydrazine (2.0 g, 0.014 mol) in anhydrous ethanol (40 mL). The mixture was refluxed for 2h,and then the precipitate formedw as collected by filtration and washed with water, chloroform and ethanol. The product was recrystallized from ethanol and dried in vacuum at 65°C to give the title compound in 84.5% yield. m.p.:190.8-191.8°C.

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