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Isocyanates from primary amines and carbon dioxide: ‘dehydration’ of carbamate anions

✍ Scribed by Waldman, Thomas E.; McGhee, William D.

Book ID
111671114
Publisher
The Royal Society of Chemistry
Year
1994
Tongue
English
Weight
282 KB
Volume
8
Category
Article
ISSN
0022-4936

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The synthesis of alkyl carbamates from p
The synthesis of alkyl carbamates from primary aliphatic amines and dialkyl carbonates in supercritical carbon dioxide
✍ Maurizio Selva; Pietro Tundo; Alvise Perosa 📂 Article 📅 2002 🏛 Elsevier Science 🌐 French ⚖ 60 KB

At 130°C and in the presence of compressed CO 2 , primary aliphatic amines [RNH 2 , R=C 10 H 21 , C 8 H 17 , cHex, 1-(C 10 H 7 )CH 2 ] react with organic carbonates (R%OCO 2 R%; R%=Me, Et) to give alkyl carbamates (RNHCO 2 R%, 1). Although CO 2 promotes the reaction also at a low pressure, good yiel