2,3-二溴-2-甲基丁腈置于乙酰氧肟酸,Sodium Methylate体系中,用 甲醇 用作溶剂,化学反应 18.0H,以62%的收率获得3-氨基-4,5-二甲基异噁唑
参考文献:Practical Synthesis Of 3-Amino-4,5-Dimethylisoxazole From 2-Methyl-2-Butenenitrile And Acetohydroxamic Acid
标题:Practical Synthesis Of 3-Amino-4,5-Dimethylisoxazole From 2-Methyl-2-Butenenitrile And Acetohydroxamic Acid
摘要:3-Amino-4,5-Dimethylisoxazole Was Prepared From Technical-Grade 2-Methyl-2-Butenenitrile And Acetohydroxamic Acid In A 62% Overall Yield On A Multimole Scale. The Key Features Of This Synthesis Are (1) Dbu Treatment Of The Technical-Grade Nitrile Mixture To Provide A Starting Material Of Acceptable Purity And (2) Use Of Acetohydroxamic Acid As An N-Protected Hydroxylamine Equivalent. This Operationally Simple Method Provides The Title Compound In Reasonable Overall Yield And Free Of Contamination From The Isomeric 5-Amino-3,4-Dimethylisoxazole.
Doi:10.1021/op060239L