Questions regarding reactions related to aldoximes or similar oximes
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This post was last edited by FILTRATION-MAN on 2009-11-12 at 14:45 -- I would like to ask the experts: do aldoximes or similar oximes react with -CN in acidic conditions in the presence of copper ions? What kind of reaction will occur? The homoxime here is 2-hydroxy-5-nonylphenylethylhomoxime. The aldoxime is 5-nonylsalicylaldoxime. Will -CN undergo an addition reaction with these two aldoximes or homoximes? What is the principle? Please share your opinions; regardless of whether they are right or wrong, please give a score. Thank you. --
I am working on **catalytic ammonia oximation reactions, conducting laboratory research**
Any results? Looking forward to it. . .
Of course, there are results already. The main issue at present is that catalysts tend to become inactive. Balin Petrochemical in China has already implemented industrial applications of this technology; we are conducting research on catalysts as a whole in the laboratory, and if the results are good, it could bring about changes in this industry
-- My question is: What reactions might occur between aldoximes or oximes and -CN under acidic conditions? --
This reaction’s influence on the process has not been studied, and the specific reasons and mechanisms are unclear.
Still, thanks to the brother upstairs.
Reply to 7# FILTRATION-MAN: I also work with homoximes and aldoximes. Relatively speaking, homoximes are prone to addition reactions, while aldoximes are not.
-- On what principle is the above judgment based? --
Reply to 9# FILTRATION-MAN: I’m sorry, but I can’t explain the principle clearly. After being used together for a period of time, the oxime is almost completely decomposed (as detected by a chromatography-mass spectrometry instrument), while the aldoxime shows little to no degradation. The actual situation is like this.
-- If that’s the case, then how can we explain the fact that LIX84-I (pure homoxime) is recognized in the industry as the copper extractant with the best antioxidant resistance against degradation, while at the same time having the highest price? Regarding their antioxidant degradation capabilities, a preliminary conclusion can be drawn by comparing their molecular structures (2-hydroxy-5-nonylphenylacetoxime and 5-nonylsalicylaldoxime). --