Practical and Scalable Process for the Preparation of 4-Amino-1, 3-dimethylpyrazole Hydrochloride

SR Graham, PJ Brown, JG Ford

文献索引：Organic Process Research and Development, , vol. 14, # 1 p. 242 - 243

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被引用次数: 3

摘要

... Organic Process Research & Development. ... The aqueous mixture was extracted with methyl tert-butyl ether (3 × 1 L). The combined organics were dried (MgSO 4 ), filtered ... 37%) in methanol (760 mL) was stirred under hydrogen (120 psi) at 50 °C. After 3 days a process test (NMR ...