Microwave-Assisted Carbamation and One-Pot Phosphorylation-Carbamation of Starch Using Molten Urea as a Reactive Solvent
Kartik Ravishankar,
Sremaan Muthusamy,
Sharath Kumar Durai
et al.
Abstract:This study presents a rapid and convenient approach for the carbamation of starch through the microwave irradiation of its mixture with an excess of urea. In this process, urea served not only as a dielectrically lossy material conducive to microwave heating but also as a solvent in its molten state and a source of isocyanic acid. The formation of starch carbamate was confirmed by the appearance of ν(C�O) and ν(C−N) vibrations in the FTIR spectrum, along with the detection of a carbamate carbonyl signal in the… Show more
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