Specifics of cross-aldol condensation of acetaldehyde with formaldehyde in presence of aminoacids and their derivatives
Reaction of cross-aldol condensation of acetaldehyde with formaldehyde at presence of aminoacids and their ether- and benzoil-derivatives were studied in pyridine, N, N-dymethylacetamide, water and toluene. It was shown that aminoacids are capable to catalyse cross- and homocondensation of acetaldeh...
Main Authors: | , , |
---|---|
Format: | Article |
Language: | Russian |
Published: |
MIREA - Russian Technological University
2009-08-01
|
Series: | Тонкие химические технологии |
Subjects: | |
Online Access: | https://www.finechem-mirea.ru/jour/article/view/1079 |
Summary: | Reaction of cross-aldol condensation of acetaldehyde with formaldehyde at presence of aminoacids and their ether- and benzoil-derivatives were studied in pyridine, N, N-dymethylacetamide, water and toluene. It was shown that aminoacids are capable to catalyse cross- and homocondensation of acetaldehyde. The yield of acrolein in presence of aminoacids is much lower than with use of its derivatives. The selectivity of cross-condensation is dependent from acid-base properties of catalyst and the reaction media. It is found that the main contribute to catalysis of cross-condensation is introduced by amino-group of aminoacid and it basic properties determine the yield of acrolein |
---|---|
ISSN: | 2410-6593 2686-7575 |