Method of preparing sodium formyl acetone and 4,4-dimethoxy-2-bu

Details Method of preparing sodium formyl acetone and 4,4-dimethoxy-2-bu Method of preparing sodium formyl acetone and 4,4-dimethoxy-2-bu

1992-10-15

1994-01-04

Reamer, James H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568391, C07C 4564

Patent

active

052762009

ABSTRACT:
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.

REFERENCES:
patent: 2760985 (1956-08-01), Burness
patent: 2760986 (1956-08-01), Fletcher et al.
patent: 2760987 (1956-08-01), Burness

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