Microwave assisted green synthesis of α, ά- bis (substituted- benzylidene) alkanones
Journal Title: Iranian Chemical Communication - Year 2015, Vol 3, Issue 2
Abstract
Microwave assisted green synthesis of α, ά- bis (substituted- benzylidene) alkanones by the crossed- aldol condensation reaction of substituted aryl aldehydes with ketones in the presence of catalytic amount of NbCl5 in good to excellent yields. This reaction is carried out under solvent-free conditions. The results showed that aldehydes bearing electron–donating substituent's on phenyl-ring favored the formation of product in good to excellent yields with reaction times ranging between 3 and 7 min. In addition, furfural, cinamaldehyde, thiophene-2-carbaldehyde and 5-methylthiophene-2-carbaldehyde were investigated in aldol reaction, and the results showed excellent yields. Also, the reactions were carried out at room & thermal (80 0C) conditions. The results showed that the yields are in accordance with the microwave irradiations, But the time is 1.5-5 h at room temperature and 15-45 min in thermal conditions.
Authors and Affiliations
Mohammad Ali Nasseri, Ali Allahresani, Batol Zakeri Nasab
Keywords
Related Articles
- EP ID EP258793
- DOI -
- Views 125
- Downloads 0
The anti cancer effects of Stachys Lavandulifolia extract
Stachys is one of the largest genera in the flowering plant family. It is in the subfamily Lamioideae (Labiatae), spreading and growing in different parts of Iran. The purpose of this study was to investigate the chemica...
Ni2+ supported on hydroxyapatite-core@shell γ-Fe2O3 nanoparticles as new and green catalyst for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones under solvent-free condition
The aim of this research is to study Ni2+ supported on hydroxyapatite-core-shell magnetic γ-Fe2O3 nanoparticles (γ-Fe2O3@HAp-Ni2+) as a green and recyclable catalyst for the Biginelli reaction under solvent-free conditio...
pKa predictions of some aniline derivatives by ab initio calculations
: In this work, different levels of theory containing HF, B3LYP, and MP2 with different basis sets such as 6-31G, 6-31G*, 6-311G, 6-311+G, 6-31+G*, 6-31+G are used to predict relative acidity constants of some aniline de...
Synthesis, spectroscopic (NMR and FT-IR) and theoretical (HF and DFT) investigation of dimethyl (Z)-2-[(2-methyl-5-oxo-1-cyclopentyl)oxy]-2-butendioate
Dimethyl (z)-2-[(2-methyl-5-oxo-1-cyclopentyl)oxy]-2-butenedioate has been synthesized using one-pot three component reaction between N-isocyaniminotriphenylphosphorane (Ph3PNNC), 3-methylcyclopentene-1,2-dione and dimet...
Dimethyl sulfide for 3-carboaldehyde pyridine displacement in a platinum(II) complex: Donor number effect
The therrmodynamic parameters and equilibrium constant of displacement of dimethy sulfide by 3-carboaldehyde pyridine as N-donor ligand in cis-[Pt(4-MeC6H4)2(SMe2)2] complex have been measured using UV vis spectroscopy i...