2,6-Pyridinedicarboxylic acid as an efficient and mild organocatalyst for the one-pot synthesis of xanthene derivative
Journal Title: Asian Journal of Green Chemistry - Year 2017, Vol 1, Issue 1
Abstract
Simple and efficient protocols have been developed for the one-pot synthesis of aryl-14H-dibenzo[a,j]xanthenes and 1,8-dioxo-octahydro-xanthenes. (i) A cost-effective, simple and convenient procedure for the synthesis of aryl-14H-dibenzo[a,j]xanthenes has been developed via a one-pot condensation from substituted benzaldehydes (1 equiv) and β-naphthol (2 equiv) in the presence of 2,6-pyridinedicarboxylic acid (2,6-PDCA) under solvent-free conditions. (ii) The one-pot condensation of substituted benzaldehydes (1 equiv) and 5,5-dimethyl-1,3-cyclohexanedione (dimedone) (2 equiv) in the presence of 2,6-pyridinedicarboxylic acid (2,6-PDCA) under solvent-free conditions leads to 1,8-dioxo-octahydro-xanthenes. In these protocols several advantages such as: Excellent yields, very short reaction times, easy work-up, simple methodology and ease of preparation and regeneration of the catalyst are offered. In these protocols several advantages such as: Excellent yields, very short reaction times, easy work-up, simple methodology and ease of preparation and regeneration of the catalyst are offered.
Authors and Affiliations
Sobhan Rezayati, Hamed Seifournia, Ehsan Mirzajanzadeh
Keywords
Related Articles
- EP ID EP252334
- DOI 10.22631/ajgc.2017.92575.1005
- Views 131
- Downloads 0
Synthesis and anti-microbial activities of azomethine and aminomethyl phenol derivatives
A series of azomethine and aminomethyl phenol derivatives has been synthesized and characterized by mass, IR, and NMR spectral techniques.In vitro antimicrobial activities of all these compounds were evaluated against di...
Hydrothermal and sol-gel low-temperature synthesis of tin, silver co-doped TiO2 nanoparticles with enhanced photocatalytic efficiency: artificial neural network modelling
Pure anatase TiO2 nanoparticles with various Ag and Sn contents were synthesized by hydrothermal and sol-gel low-temperature methods. Structural and morphological characterizations of synthesized nanoparticles were perfo...
Biosynthesis of iron oxide nanoparticles by cytoplasmic extracts of bacteria lactobacillus casei
Nowadays, tend to use nanotechnology in various fields such as medical science and pharmacology have increased. Making nanoparticles can be done by different ways, but, due to the hazards and environmental pollution caus...
Emerging extraction processes of essential oils: A review
The aim of this work is to study the extraction of the essential oil as a process that appeared to obtain the bioactive substances among the several extraction processes. A great number of extraction processes are availa...
Cu(II)-Schiff base/SBA-15 as an efficient catalyst for synthesis of decahydroacridine-1,8-diones
Herein, we report a fast synthesis of 1,4-dihydropyridines, decahydroacridine-1,8-diones by one-pot multi-component reaction of 1,3-cyclohexanedione or dimidone, arylaldehydes, and ammonium acetate under solvent-less con...