EFFICIENT RHODIUM CATALYSTS FOR THE HYDROGENOLYSIS OF THIOPHENIC MOLECULES IN HOMOGENEOUS PHASE

Authors
BIANCHINI C CASARES JA MELI A SERNAU V VIZZA F SANCHEZDELGADO RA
Citation
C. Bianchini et al., EFFICIENT RHODIUM CATALYSTS FOR THE HYDROGENOLYSIS OF THIOPHENIC MOLECULES IN HOMOGENEOUS PHASE, Polyhedron, 16(18), 1997, pp. 3099-3114
Citations number
87
Categorie Soggetti
Chemistry Inorganic & Nuclear",Crystallography
Journal title
Polyhedron → ACNP
ISSN journal
02775387
Volume
16
Issue
18
Year of publication
1997
Pages
3099 - 3114
Database
ISI
SICI code
0277-5387(1997)16:18<3099:ERCFTH>2.0.ZU;2-I
Abstract
In the presence of strong bases, the C-S insertion complexes (triphos) Rh[eta(3)-S(C6H4)CH=CH2] and (triphos)Rh(eta(3)-SCH=CH CH=CH2) as well as the pi-alkyne complex [(triphos)Rh(eta(2)-MeO2CC=CCO2 Me)]PF6 are catalyst precursors for the hydrogenation of thiophene (T), benzo[b]th iophene (BT) and dibenzo[b,d]thiophene (DBT) in tetrahydrofuran soluti on [triphos = MeC(CH2PPh2)(3)]. Both hydrogenolysis (thiols) and desul furization (hydrocarbons) products are obtained. Among the substrates investigated, BT is the most reactive, whereas T is the easiest to des ulfurize. (C) 1997 Elsevier Science Ltd.