Synthesis of Carbamates and Ureas Using Zr(IV)-Catalyzed Exchange Processes
Organic Letters2007Vol. 9(8), pp. 1517–1520
Citations Over TimeTop 10% of 2007 papers
Abstract
[reaction: see text] Zirconium(IV)-catalyzed exchange processes have been developed to prepare both carbamates and ureas from dialkyl carbonates and carbamates employing 2-hydroxypyridine (HYP) and 4-methyl-2-hydroxyquinoline (MeHYQ) as catalytic additives, respectively. A microwave acceleration effect was observed in Zr(IV)-catalyzed carbamate-urea exchange.
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