Acetalization and Transacetalization Reactions Catalyzed by Ruthenium, Rhodium, and Iridium Complexes with {2-{{Bis[3-(trifluoromethyl)phenyl]phosphino}methyl}-2-methylpropane- 1,3-diyl}bis[bis[3-(trifluoromethyl)phenyl]phosphine] (MeC[CH2P(m-CF3C6H4)2]3)

✍ Scribed by Mustafa Sülü; Luigi M. Venanzi

• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: German
• Weight: 123 KB
• Volume: 84
• Category: Article
• ISSN: 0018-019X
• DOI: 10.1002/1522-2675(20010418)84:4<898::aid-hlca898>3.0.co;2-v

✦ Synopsis

The complexes [RhCl (3Àn) (MeCN) n (CF 3 triphos)](CF 3 SO 3 ) n (n 1, 2; CF 3 triphos MeC[CH 2 P(m-CF 3 C 6 H 4 ) 2 ] 3 ) and [M(MeCN) 3 (CF 3 triphos)](CF 3 SO 3 ) n (M Ru, n 2; M Ir, n 3) are catalyst precursors for some typical acetalization and transacetalization reactions. The activity of these complexes is higher than those of the corresponding species containing the parent ligand MeC[CH 2 P(C 6 H 5 ) 2 ] 3 (Htriphos). Also the complexes [MCl 3 (tripod)] (tripod Htriphos and CF 3 triphos) are active catalysts for the above reactions. The complex [RhCl 2 (MeCN)(CF 3 triphos)](CF 3 SO 3 ) catalyzes the acetalization of benzophenone.