Organic carbamates classically have been synthesized using harmful reagents like phosgene, its derivatives and carbon monoxide. Recently, carbon dioxide has been used as a cheap and harmless reagent as an alternative to harmful reagents for the synthesis of organic carbamates in gaseous, supercritical and electrochemical forms. The present review will deal the synthesis of organic carbamates from various starting materials from beginning to recent ones.
Keywords: Carbamates, carbamation, phosgene, carbon monoxide, carbon dioxide, organic carbonates
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