Reactions of CH-acids with alpha,beta-unsaturated aldehydes in ionic liquids
Kryshtal, GV; Zhdankina, GM; Astakhova, IV; Zlotin, SG
| HERO ID | 4096023 |
|---|---|
| In Press | No |
| Year | 2004 |
| Title | Reactions of CH-acids with alpha,beta-unsaturated aldehydes in ionic liquids |
| Authors | Kryshtal, GV; Zhdankina, GM; Astakhova, IV; Zlotin, SG |
| Journal | Russian Chemical Bulletin |
| Volume | 53 |
| Issue | 3 |
| Page Numbers | 647-651 |
| Abstract | Metal carbonate-catalyzed reactions of CH-acids (diethyl malonate, ethyl acetoacetate, ethyl cyanoacetate, and ethyl 2-acetyl- and 2-ethoxycarbonyl-5,9-dimethyldeca-4,8-dienoates) with alpha,beta-unsaturated aldehydes (acrolein, crotonaldehyde, citral) were studied in an ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate [bmim][PF6], and in a 1-butyl-3-methylimidazolium bromide ([bmim][Br]) - benzene system. The reactions with acrolein and crotonaldehyde afforded Michael addition products, those with citral resulted in Knoevenagel addition products. Sonication increased the yields of the Michael adducts. The ionic liquid [bmim][PF6] can be recovered and repeatedly used in the reactions. |
| Doi | 10.1023/B:RUCB.0000035651.60150.53 |
| Wosid | WOS:000223566500022 |
| Url | https://www.scopus.com/inward/record.uri?eid=2-s2.0-4043129608&doi=10.1023%2fB%3aRUCB.0000035651.60150.53&partnerID=40&md5=0298bd6ab2a584cf218f9c72b992f9f0 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | CH-acids; alpha,beta-unsaturated aldehydes; Michael reaction; Knoevenagel reaction; ionic liquids; ultrasound |