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Copyright of Kemija u Industriji is the property of Croatian Society of Chemical Engineers and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In the conventional method, the most effective DESs were: choline chloride:thiourea, choline chloride:oxalic acid, and choline chloride:levulinic acid, but none of these provided high yields. The most effective eutectic solvents in this method were choline chloride:oxalic acid and choline chloride:levulinic acid. The most effective eutectic solvents for the quaternization of pyridoxal oxime with substituted 2-bromoacetophenones in the ultrasonic method were choline chloride:oxalic, choline chloride:levulinic acid and choline chloride: I trans i -cinnamic acid. Yields (%) of the compounds 3f, 3g and 3i obtained by conventional (blue), microwave (orange) and ultrasonic (grey) method in three eutectic solvents (choline chloride/oxalic acid, choline chloride/levulinic acid and choline chloride/trans-cinnamic acid). [Extracted from the article]

Copyright of Kemija u Industriji is the property of Croatian Society of Chemical Engineers and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)