Questions on selectivity of homo- and crossaldol condensation of lower aldehydes at presence of different salts of amines.
Reactions of homo- and crossaldol condensation of formaldehyde and acetaldehyde were studied at presence of primary, secondary and tertiary amine salt of linear structure in N,N-dimethylacetamide, water and toluene. It was found that in all solvents conversion of reagent is increased with increase o...
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| Format: | Article |
| Language: | Russian |
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MIREA - Russian Technological University
2008-08-01
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| Series: | Тонкие химические технологии |
| Online Access: | https://www.finechem-mirea.ru/jour/article/view/1509 |
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| author | L. V. Dashko V. V. Medvedev D. V. Dmitriev V. R. Flid |
| author_facet | L. V. Dashko V. V. Medvedev D. V. Dmitriev V. R. Flid |
| author_sort | L. V. Dashko |
| collection | DOAJ |
| description | Reactions of homo- and crossaldol condensation of formaldehyde and acetaldehyde were studied at presence of primary, secondary and tertiary amine salt of linear structure in N,N-dimethylacetamide, water and toluene. It was found that in all solvents conversion of reagent is increased with increase of bacity of amine, but selectivity on cross-reaction became lower because of formation side products of acetaldehyde homo-condensation. The conversion of acetaldehyde is also increased with increase of solvent polarity. |
| format | Article |
| id | doaj-art-800af3ebfbff46d09353398198d140b9 |
| institution | DOAJ |
| issn | 2410-6593 2686-7575 |
| language | Russian |
| publishDate | 2008-08-01 |
| publisher | MIREA - Russian Technological University |
| record_format | Article |
| series | Тонкие химические технологии |
| spelling | doaj-art-800af3ebfbff46d09353398198d140b92025-08-20T03:23:19ZrusMIREA - Russian Technological UniversityТонкие химические технологии2410-65932686-75752008-08-013423311504Questions on selectivity of homo- and crossaldol condensation of lower aldehydes at presence of different salts of amines.L. V. Dashko0V. V. Medvedev1D. V. Dmitriev2V. R. Flid3M.V. Lomonosov Moscow State University of Fine Chemical Technologies, 86, Vernadskogo pr., Moscow 119571M.V. Lomonosov Moscow State University of Fine Chemical Technologies, 86, Vernadskogo pr., Moscow 119571M.V. Lomonosov Moscow State University of Fine Chemical Technologies, 86, Vernadskogo pr., Moscow 119571M.V. Lomonosov Moscow State University of Fine Chemical Technologies, 86, Vernadskogo pr., Moscow 119571Reactions of homo- and crossaldol condensation of formaldehyde and acetaldehyde were studied at presence of primary, secondary and tertiary amine salt of linear structure in N,N-dimethylacetamide, water and toluene. It was found that in all solvents conversion of reagent is increased with increase of bacity of amine, but selectivity on cross-reaction became lower because of formation side products of acetaldehyde homo-condensation. The conversion of acetaldehyde is also increased with increase of solvent polarity.https://www.finechem-mirea.ru/jour/article/view/1509 |
| spellingShingle | L. V. Dashko V. V. Medvedev D. V. Dmitriev V. R. Flid Questions on selectivity of homo- and crossaldol condensation of lower aldehydes at presence of different salts of amines. Тонкие химические технологии |
| title | Questions on selectivity of homo- and crossaldol condensation of lower aldehydes at presence of different salts of amines. |
| title_full | Questions on selectivity of homo- and crossaldol condensation of lower aldehydes at presence of different salts of amines. |
| title_fullStr | Questions on selectivity of homo- and crossaldol condensation of lower aldehydes at presence of different salts of amines. |
| title_full_unstemmed | Questions on selectivity of homo- and crossaldol condensation of lower aldehydes at presence of different salts of amines. |
| title_short | Questions on selectivity of homo- and crossaldol condensation of lower aldehydes at presence of different salts of amines. |
| title_sort | questions on selectivity of homo and crossaldol condensation of lower aldehydes at presence of different salts of amines |
| url | https://www.finechem-mirea.ru/jour/article/view/1509 |
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