Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 23, Issue 17, Pages -Publisher
MDPI
DOI: 10.3390/ijms23179529
Keywords
passerini reaction; aqueous media; alpha-acyloxycarboxamides; immobilized sulfuric acid on silica gel
Funding
- National Research Foundation of South Africa [116109]
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The application of immobilized sulfuric acid on silica gel as a solid catalyst in the synthesis of novel alpha-acyloxycarboxamide derivatives via a Passerini reaction was explored. The process showed advantages such as short reaction time, high yields, low cost, and catalyst reusability.
The application of immobilized sulfuric acid on silica gel (H2SO4-SiO2) as an efficient and easily reusable solid catalyst was explored in the synthesis of novel alpha-acyloxycarboxamide derivatives via a Passerini reaction of benzoic acid, aldehyde/ketone, and isocyanides. The Passerini adducts were obtained in high to excellent yields within 10 min in aqueous media under catalytic conditions. The key advantages of the process include a short reaction time, high yields, the catalyst's low cost, and the catalyst's reusability.
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