| 摘要 |
New compositions: 2,2-dialkyl-2H-imidazole-1-oxides have general formula (I), where R<1> = C6H5, CH3, CH=NOH, pO2NC6H4, M-O2NC6H4; R<2> = CH3, CH2CH2CH3; R<3> = CH3, (CH2)7CH3, CH2COOC2H5, CH2CH2COOCH3, CH2CH2COOH, CH2CH2CH3, (CH2)8CH3. The method for obtaining said compositions consists in that hydroximinomethylketones of general formula (II), where R<1> = C6H5, CH3, CH=NOH, p-O2NC6H4, are interacted with aliphatic ketones of general formula R<2>-CO-R<3>, where R<2> = CH3, CH2CH2CH3; R<3> = CH3, (CH2)7CH3, CH2COOC2H5, CH2CH2COOCH3, CH2CH2COOH, CH2CH2CH3, (CH2)8CH3, and with ammmonium acetate. The molar ratio of components is 1:3.5-20:1.6-6.0, respectively. The process is carried out in the medium of acetic acid at a temperature of 20-100 DEG C. As a result a reaction mass is obtained containing the desired product which is then extracte. |
