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Phosphorus Acids as Highly Efficient Promoters for the Palladium‐Phenanthroline Catalyzed Carbonylation of Nitrobenzene to Methyl Phenylcarbamate †
Author(s) -
Ragaini Fabio,
Gasperini Michela,
Cenini Sergio
Publication year - 2004
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/adsc.200303143
Subject(s) - chemistry , nitrobenzene , carbonylation , catalysis , palladium , phenanthroline , phosphoric acid , organic chemistry , phosphorus , medicinal chemistry , carbon monoxide
A new family of promoters, based on phosphorus acids, is reported for the catalytic carbonylation of nitrobenzene to methyl phenylcarbamate by palladium‐phenanthroline complexes. With the new promoters, unprecedented reaction rates (TOF up to 6000/h) and catalyst stability (TON up to 10 5 ) could be reached. The best promoter is phosphoric acid, which is also very cheap, nontoxic and easily separable from the reaction products.