发明名称 |
Method of preparing sodium formyl acetone and 4,4-dimethoxy-2-butanone |
摘要 |
The present invention provides a method of preparing sodium formyl acetone using acetone, methyl formate and sodium methoxide as raw materials. A mixture consisting of an acetone and a methyl formate is supplied to a methanol solution of sodium methoxide, or an acetone and a methyl formate are separately supplied simultaneously to the methanol solution of sodium methoxide. The resultant mixture is sufficiently stirred over a predetermined period of time so as to carry out the reaction to form sodium formyl acetone. Also provided is a method of preparing 4,4-dimethoxy-2-butanone. In this method, the reaction mixture obtained in the reaction to form sodium formyl acetone is directly charged into a reaction vessel simultaneously with sulfuric acid to neutralize and acetalize sodium formyl acetone contained in the reaction mixture so as to obtain 4,4-dimethoxy-2-butanone.
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申请公布号 |
US5276200(A) |
申请公布日期 |
1994.01.04 |
申请号 |
US19920961402 |
申请日期 |
1992.10.15 |
申请人 |
UBE INDUSTRIES, LTD. |
发明人 |
NISHIHIRA, KEIGO;TANAKA, SHUJI;KONDO, MASAHIRO |
分类号 |
C07C45/68;C07C45/71;C07C45/72;C07C49/175;C07C49/24;(IPC1-7):C07C45/64 |
主分类号 |
C07C45/68 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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