A new method of synthesis of both aliphatic and aromatic alkali-metal carbamates and anhydrous alkylammonium tetraphenylborates by reaction, at room temperature, of amines with alkali-metal tetraphenylborates in the presence of CO2(0.1 MPa) has been determined. This reaction represents the first step of a new very selective synthetic route to alkali-metal carbamates from amines, carbon dioxide and alkali-metal hydroxides at room temperature and pressure. It is also the first example of the isolation of aromatic amine alkali-metal carbamates through a non-isocyanate route.
REACTION OF ALKALI-METAL TETRAPHENYLBORATES WITH AMINES IN THE PRESENCE OF CO2: A NEW EASY WAY TO ALIPHATIC AND AROMATIC ALKALI-METAL CARBAMATES”
ARESTA, Michele;DIBENEDETTO, Angela;QUARANTA, Eugenio
1995-01-01
Abstract
A new method of synthesis of both aliphatic and aromatic alkali-metal carbamates and anhydrous alkylammonium tetraphenylborates by reaction, at room temperature, of amines with alkali-metal tetraphenylborates in the presence of CO2(0.1 MPa) has been determined. This reaction represents the first step of a new very selective synthetic route to alkali-metal carbamates from amines, carbon dioxide and alkali-metal hydroxides at room temperature and pressure. It is also the first example of the isolation of aromatic amine alkali-metal carbamates through a non-isocyanate route.File in questo prodotto:
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