Basic ionic liquid [BMIM][OH] as heterogeneous catalyst mediated solvent-free Stobbe condensation applying grindstone technique for the synthesis of novel β-arylidene-β-benzoylpropionic acid derivatives. Issue 2 (3rd April 2017)

• Record Type: Journal Article
• Authors: Lambat, Trimurti L.; Deo, Sujata S.
• Is Part Of: Journal of the Chinese Advanced Materials Society. Volume 5:Issue 2(2017)
• Page Start: 65
• Page End: 78
• Publication Date: 2017-04-03
• Subjects: Ionic liquid -- Stobbe condensation -- β-arylidene-β-benzoylpropionic acid -- solvent free -- grindstone technique; Materials -- Periodicals; Materials science -- Periodicals; Materials; Periodicals; 620.1105
• DOI: 10.1080/22243682.2017.1288584
• Languages: English
• ISSNs: 2224-3682

Abstract

ABSTRACT: The basic ionic liquid 1-butyl-3-methylimidazolium hydroxide, i.e. [BMIM][OH], proficiently catalyzed Stobbe condensation in solvent-free condition. An extensive range of aromatic aldehydes simply undergo condensations with methyl-β-benzoyl propionate. The reactions proceed at room temperature and are very fast (10 min). However, the most crucial feature of this methodology is the solvent-free approach and applying grindstone technique for condensation, which is generally not possible by any other conventional reagents and was not addressed adequately in literature providing a general and convenient procedure. The potential application of [BMIM][OH] in organic synthesis is increasing rapidly due to its high yields of the desired products (80%–92%), minimal reaction time, reaction simplicity, and low-cost chemicals. All novel compounds of β-arylidene-β-benzoylpropionic acid derivatives were characterized by IR, 1 H NMR, and mass spectra. Abstract :