A simple one-pot procedure for preparing symmetrical diaryllureas from carbon dioxide and aromatic amines

Article abstract of DOI:10.1080/00397919508015452

Symmetrical diarylureas can be prepared by purging an aromatic amine with carbon dioxide in the presence of a strong amidine base followed addition of solid commercially available Me₃N·SO₃. Work up is simply by dilution with water. The procedure is far simpler and safer than traditional methods using phosgene or isocyanates.

Full text of DOI:10.1080/00397919508015452

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Synthetic Communications: An
International Journal for Rapid
Communication of Synthetic Organic
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A Simple One-Pot Procedure for
Preparing Symmetrical Diarylureas from
Carbon Dioxide and Aromatic Amines
Charles F. Cooper a & Samuel J. Falcone a
a Product and Process Research ARCO Chemical Company, Newtown,
Square, PA, 19073
Published online: 04 Jan 2007.
To cite this article: Charles F. Cooper & Samuel J. Falcone (1995): A Simple One-Pot Procedure
for Preparing Symmetrical Diarylureas from Carbon Dioxide and Aromatic Amines, Synthetic
Communications: An International Journal for Rapid Communication of Synthetic Organic Chemistry,
25:16, 2467-2474
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