135636-66-7Relevant articles and documents
Oxime Esters as Novel Irreversible Acyl Transfer Agents for Lipase Catalysis in Organic Media
Ghogare, A.,Kumar, G. Sudesh
, p. 1533 - 1535 (1989)
Oxime acetates and acrylates are established as efficient irreversible acyl transfer agents for lipase-catalysed transesterification in organic media.
Synthesis method of dimethylglyoxime
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Paragraph 0033; 0034-0042; 0045-0052; 0055-00081, (2017/06/02)
The invention relates to a novel method for synthesizing dimethylglyoxime. The method comprises the following steps: 1) setting the thermostatic reaction temperature to 10-70 DEG C, and adding a catalyst into a solvent ethanol-butanedione mixed liquid, wherein the ethanol is 10-20 times by mass of the butanedione; and 2) adding stronger ammonia water and oxydol into the mixed liquid in the step 1) by 1-3 times within 0.5-1 hour, and reacting for 0.5-6 hours, wherein the mole ratio of the butanedione, oxydol and ammonia water is 1:(2-3.5):(2-4), and the catalyst is a titanium silicon molecular sieve and is 1-4 times by mass of the butanedione. Compared with the prior art, the reaction steps are reduced, thereby implementing one-step synthesis of dimethylglyoxime; the solid powder catalyst can be easily separated from the reaction system, and can be recycled, thereby enhancing the dimethylglyoxime production efficiency to some extent; and the used raw materials have low toxicity and no harm, and the reaction byproduct is water and is almost not hazardous to the environment, thereby satisfying the requirements of green chemical industry.
