反应详情

As an example the intermediate oxime used as starting material can be prepared as follows: (+-)-2-phenyl-3-(1H-imidazol-1-yl)-2,3-dihydro-4H-benzopyran-4-one[J. Het. Chem. 21,311,(1984)], (4 g.; 0.014 moles), is dissolved in pyridine, and hydroxylamine hydrochloride (2.4 g.; 0.034 moles) dissolved in ethanol (20 ml), is added at room temperature to the solution.

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2. additionis added at room temperature to the solution