Supported tin phthalocyanines as catalysts in the hydrogenation of quinoline. [Metallophthalocyanines]

Conference · Fri Jan 01 04:00:00 EST 1982

OSTI ID:5225866

Boucher, L J; Dadey, E J

The results of this study show that the Tin(II) and Tin(IV) Phthalocyanines, (Sn(PC)) and (Sn(PC)Cl/sub 2/), are active catalysts for the selective hydrogenation of Quinoline to 1,2,3,4,Tetrahydroquinoline at 200 to 250/sup 0/C and 1000 psi H/sub 2/ pressure. Both homogeneous and heterogeneous catalysts, supported on silica, show comparable activities. However, the stability of the catalysts is superior for the supported catalysts. Nonetheless both types of catalysts degrade at >250/sup 0/C by hydrogenation of the phthalocyanine macrocycle with concominant loss of metal. At 200 to 250/sup 0/C the homogeneous catalysts undergo several reactions during the catalytic cycle, e.g., Sn(IV) is reduced to Sn(II) and (Sn(PC)/sub 2/) is also formed. Further the phthalocyanine ring is slowly reduced. This is in contrast to the supported catalysts which just show reduction of the Sn(IV) complex.

• Research Organization: Western Kentucky Univ., Bowling Green (USA). Dept. of Chemistry
• DOE Contract Number: FG22-81PC40812
• OSTI ID: 5225866
• Report Number(s): CONF-820909-6; ON: DE82016690
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
AZINES
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
DYES
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
HIGH TEMPERATURE
HYDROGENATION
INFORMATION
MINERALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANOMETALLIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHTHALOCYANINES
PYRIDINES
QUINOLINES
SILICA
SILICON COMPOUNDS
SILICON OXIDES
STABILITY
TIN COMPOUNDS