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An Improved Method for Synthesis of 4,4-Dimethylpyrazolone and Application to Dihydropyridazinone Ring Formation

机译:改进的4,4-二甲基吡唑啉酮合成方法及其在二氢哒嗪酮环形成中的应用

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摘要

An improved method for 4,4-dimethylpyrazolone synthesis with t -butylcarbazate was described. The applicability of this method to dihydropyridazinone formation was demonstrated. This method is useful for suppressing the side reaction caused by the high nucleophilicity of hydrazine.
机译:描述了一种用氨基甲酸叔丁酯合成4,4-二甲基吡唑酮的改进方法。证明了该方法对二氢哒嗪酮形成的适用性。该方法对于抑制由肼的高亲核性引起的副反应是有用的。

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