Novel Rhodium and Palladium Complexes with Benzoyl and Thiobenzoyl Isocyanates as Ligands

  • Seiji Hasegawa
  • Kenji Itoh
  • Yoshio Ishii


The reaction between benzoyl isocyanate and RhCl(Ph3P)3 afforded a complex [RhCl(Ph3P)2PhCO·NCO)]2 (1), which was converted to [(bipy)Rh(Ph3P)2(PhCO·NCO)]+BPh 4 (2a) by bipyridine and NaBPh4. The latter complex was also obtained by the reaction of [(bipy)Rh(Ph3P)2]+ with benzoyl isocyanate. An analogous palladium complex (bipy)Pd(PhCO·NCO) (3) was prepared in the reaction of Pd2 (dibenzylideneacetone)3 with bipyridine and benzoyl isocyanate. 2-Phenylthiazoline-4,5-dione (4), a precursor of thiobenzoyl isocyanate, gave a complex RhCl(CO)(Ph3P)2 (PhCS·NCO) (5) in the reaction either with RhCl(Ph3P)3 or with RhCl(CO)(Ph3P)2. A cationic complex [(bipy)Rh(Ph3P)2(PhCS·NCO)]+BPh 4 (6a) was also obtained. The similar reactions of Pd2(DBA)3 with 4 and bipyridine or o-phenanthroline afforded (N-N)Pd-(PhCS·NCO) complexes (7). Most of these novel complexes have a metallocyclic structure composed of M-O-C-N-C or M-S-C-N-C skeletons.


Cationic Complex Palladium Complex Phenyl Isocyanate Sodium Tetraphenylborate Oxidative Addition Reaction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Plenum Press, New York 1975

Authors and Affiliations

  • Seiji Hasegawa
    • 1
  • Kenji Itoh
    • 1
  • Yoshio Ishii
    • 1
  1. 1.Department of Synthetic Chemistry, Faculty of EngineeringNagoya UniversityFuro-cho, Chikusa-ku, Nagoya 464Japan

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