Recently it has been demonstrated that the typical aroma of oxidative spoiled white wine are related with the presence of methional and phenylacetaldehyde, substances accountable respectively for the “boiled-potato” and “honey-like” odour notes with threshold values of 0.5 μg/L and 25 μg/L . These compounds can be formed by the direct oxidation of the respective alcohol or via Strecker degradat...

An efficient and eco-friendly protocol for the synthesis of quinoxaline derivatives employing a condensation reaction between 1,2-diketone and 1,2-diaminobenzene derivative has been developed. The reaction of  1,2-diketone and 1,2-diaminobenzene derivative was carried out in water at room temperature using 10 mol% of task-specific dicationic ionic liquid as a catalyst. The results show that...

Phospho sulfonic acid (PSA) synthesized as an environmentally safe and efficient solid acid catalyst, and it used for the synthesis of several 2-disubstituted benzimidazoles, 2-substituted benzoxazoles, and 2-substituted quinoxalines in ethanol as a green solvent at ambient temperature is described. (i) A very simple, green and efficient procedure for the synthesis of benzimidazole and also benz...