Enthalpies of combustion and formation of 3-methylisoxazole and 5-methylisoxazole was written by Hamilton, Walter S.;Benton, Susan;French, Jennifer;McCormick, Deborah;Pustejovsky, Sharon;Thompson, Patricia. And the article was included in Journal of Chemical and Engineering Data in 1978.HPLC of Formula: 5765-44-6 This article mentions the following:
The enthalpies of combustion of 3-methylisoxazole [30842-90-1] and 5-methylisoxazole [5765-44-6] were measured by precision O-bomb calorimetry. The following values, based on the mass of sample burned, are reported for the standard enthalpy of combustion, ΔH°c (298.15 K)/kcalth mol-1, of these compounds in the liquid state: 3-methylisoxazole, -546.00 ± 0.14; 5-methylisoxazole, -545.65 ± 0.17. Enthalpies of vaporization, determined calorimetrically, are 3-methylisoxazole, 9.51 ± 0.05 kcal mol-1, and 5-methylisoxazole, 9.48 ± 0.04 kcal mol-1. These data were used to calculate standard enthalpies of formation for the gaseous compounds, ΔH°f(g), which are 3-methylisoxazole, 8.52 ± 0.16 kcal mol-1, and 5-methylisoxazole, 8.14 ± 0.18 kcal mol-1. Throughout this paper calth = 4.184 J and atm = 101.325 kPa. In the experiment, the researchers used many compounds, for example, 5-Methylisoxazole (cas: 5765-44-6HPLC of Formula: 5765-44-6).
5-Methylisoxazole (cas: 5765-44-6) belongs to isoxazole derivatives.Synthetically, isoxazoles serve as valuable precursors for the construction of diverse molecules, including many natural products. The most common methods for N–O bond cleavage in isoxazoles are hydrogenation with palladium or platinum catalysts or with Raney Ni. Recent developments have shown that Mo(CO)6 efficiently cleaves the N–O bond in isoxazoles.HPLC of Formula: 5765-44-6
Referemce:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem