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. 2007 Apr 12;9(8):1517-20.
doi: 10.1021/ol0702728. Epub 2007 Mar 15.

Synthesis of carbamates and ureas using Zr(IV)-catalyzed exchange processes

Chong Han  1 , John A Porco Jr
Affiliations

Synthesis of carbamates and ureas using Zr(IV)-catalyzed exchange processes

Chong Han et al. Org Lett. .

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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