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Synthesis and Crystal Structure of a Palladium Metallacyclic Complex: A Key Intermediate in the Carbonylation of Azobenzene to N ‐Phenyl Urethane
Author(s) -
Sessanta o Santi Andrea,
Milani Barbara,
Zangrando Ennio,
Mestroni Giovanni
Publication year - 2000
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/1099-0682(200011)2000:11<2351::aid-ejic2351>3.0.co;2-#
Subject(s) - chemistry , azobenzene , carbonylation , palladium , key (lock) , crystal structure , polymer chemistry , medicinal chemistry , organic chemistry , molecule , catalysis , carbon monoxide , biology , ecology
The reductive carbonylation of azoxybenzene to N ‐phenyl urethane via azobenzene is promoted by the catalytic system based on palladium, bidentate nitrogen‐donor chelating ligands N‐N [N‐N = 1,10‐phenanthroline (phen) and its substituted derivatives] and the acid cocatalyst [(N‐N)H][PF 6 ], the same catalyst as for the reductive carbonylation of nitroaromatic compounds to the corresponding carbamates. The possible key intermediate of the azobenzene → N ‐phenyl urethane transformation has been synthesised and fully characterised.