Zakeri, Masoumeh and Nasef, Mohamed Mahmoud and Abouzari-Lotf, Ebrahim and Moharami, Arezoo and Heravi, Majid M. (2015) Sustainable alternative protocols for the multicomponent synthesis of spiro-4H-pyrans catalyzed by 4-dimethylaminopyridine. Journal of Industrial and Engineering Chemistry, 29 . pp. 273-281. ISSN 1226-086X
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Official URL: http://dx.doi.org/10.1016/j.jiec.2015.03.035
Abstract
Green approaches to the synthesis of spiro-4. H-pyrans are reported based on the one-pot and three-component condensation via a domino Knoevenagel/Michael/cyclization sequence. These approaches involve evaluation of the activity of several organocatalysts in water as a reaction media and also under solvent-free in both microwave irradiation and ball milling conditions. Extensive experiments were carried out to optimize the reaction parameters including type and amount of catalyst, reaction temperature and time. Microwave irradiation in presence of 4-dimethylaminopyridine (DMAP) was observed as the best procedure with good yields, short reaction time, environmental friendliness, and convenient operation.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ball milling, green chemistry, microwave irradiation, spiro-4H-pyrans |
| Subjects: | Q Science > QD Chemistry T Technology > TP Chemical technology |
| Divisions: | Malaysia-Japan International Institute of Technology |
| ID Code: | 58847 |
| Deposited By: | Haliza Zainal |
| Deposited On: | 04 Dec 2016 04:08 |
| Last Modified: | 19 Dec 2021 03:26 |
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