PROCESS FOR THE PREPARATION OF AROMATIC FORMAMIDES
The invention relates to a process for the preparation of formamides by reacting aromatic amines with a formic acid ester in the presence of a catalyst, wherein the catalyst is a phosphorus-containing acid or a Lewis-acidic metal salt.
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Page/Page column 4
(2012/10/08)
PROCESS FOR THE PREPARATION OF N-SUBSTITUTED FORMAMIDES
N-Aryl- or N-heteroarylformamides are prepared by hydrogenating a corresponding nitroarene or nitroheteroarene with formic acid and/or ammonium formate as hydrogen donor and formylating agent in the presence of at least one noble metal-based hydrogenation catalyst and a vanadium or molybdenum compound as co-catalyst.
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Page 7
(2008/06/13)
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