A Simple One-Pot Procedure for Preparing Symmetrical Diarylureas from Carbon Dioxide and Aromatic Amines

A Simple One-Pot Procedure for Preparing Symmetrical Diarylureas from Carbon Dioxide and Aromatic Amines

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 Me 3 N.SO 3 . Work up is simply by dilution with water. The procedure is far simpler and safer than traditional methods...

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Veröffentlicht in:Synthetic communications 1995-08, Vol.25 (16), p.2467-2474
Hauptverfasser: Cooper, Charles F., Falcone, Samuel J.
Format: Artikel
Sprache:eng
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Zusammenfassung: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 Me 3 N.SO 3 . Work up is simply by dilution with water. The procedure is far simpler and safer than traditional methods using phosgene or isocyanates.
ISSN:0039-7911
1532-2432
DOI:10.1080/00397919508015452