摘要
以2-硝基-4-甲磺酰基-笨甲酰氯和1,3-环己二酮为原料,首先碱性条件下合成烯醇酯,然后再经催化重排制得甲基磺酮,讨论了反应条件对产品收率的影响并得到了适宜的工艺条件。结果表明,在以二氯甲烷为溶剂,三乙胺为缚酸剂,重排温度为50℃时,所得甲基磺草酮产品含量≥95.0%,收率≥70.0%。
With 4-mesyl-2-uitro-benzoyl chloride and 1,3-cyclohexanedione as the primary materials,enol ester was synthesized as a primary intermediate under basic conditions, and then transformed to 2-（4＇-mesyl-2＇-nitro-benzoyl）- cyclohexane-1,3-dione through catalytic rearrangement.The influence of reaction conditions on the yield of product is discussed and the suitable conditions ard obtained.Results showed that content and yield of aim product are larger than 95.0% and 70.0% respecitvely under rearrangement temperature of 50 ℃ when using dichloromenthane as solvent,trietylamine as acid-captor.
出处
《河北化工》
2005年第5期32-33,35,共3页
Hebei Chemical Industry
关键词
2-硝基-4-尹磺酰基-笨甲酰氯
1
3-环己二酮
甲基磺草酮
4-mesy 1-2-uitro-benzoyl chloride
1,3-cyclohexanedione
2- （4＇-mesyl-2＇-uitro-benzoyl） cyclohexane- 1,3-dione
