alkaline earth salt of/the/ methylsulfuric acid 在
silica gel 作用下,
以
甲醇 为溶剂,
反应 14.0h,
以100%的产率得到4-methoxycarbonyloxy-2-oxyiminobutanoic acid methyl ester
参考文献:
名称:
Synthesis and certain transformations of ?-nitrosoalcohols
摘要:
The gamma-nitrosoalcohols (II), (XII), and (IX), respectively, have been synthesized by acid-catalyzed hydrolysis of 2-alkoxyisoxazolidines (I), (Xa, b), (Xla, b), and 3-(dimethoxyamino)-3-trifluoromethylbutanol-1 (VIII). The nitrosoalcohol (II) readily rearranges into the oxime (III), and (XII) is converted into the diol (XIII) by oxidation with atmospheric O2 and denitrosation. For (IX) and (XII) ring-chain tautomerism with formation of 2-hydroxyisoxazolidines could not be detected by PMR spectroscopy.