Process for functionalizing alkanes
Process for functionalizing saturated hydrocarbons selectively in the terminal position comprising: (a) reacting said saturated hydrocarbons of the formula: RH where: H represents a hydrogen atom, and R represents a saturated hydrocarbon radical, with a metal complex of the formula: C /SUB p/ RhPMe/sub 3/H/sub 2/ where: C /SUB p/ represents a pentamethylated cyclopentadienyl radical, Rh represents a rhodium atom, P represents a phosphorous atom, Me represents a methyl group, H represents a hydrogen atom, in the presence of ultraviolet radiation at a temperature maintained at about -60/sup 0/ to -17/sup 0/ C. to form a hydridoalkyl complex of the formula: C /SUB p/ RhPMe/sub 3/RH (b) reacting said hydridoalkyl complex with a haloform of the formula: CHX/sub 3/ where: X represents a bromine, iodine or chlorine atom, at a temperature in the range of about -60/sup 0/ to -17/sup 0/ C. to form the corresponding haloalkyl complex of step (a) having the formula: C /SUB p/ RhMe/sub 3/RX; and, (c) reacting said haloalkyl complex formed in (b) with halogen (X/sub 2/) at a temperature in the range of about -60/sup 0/ to 25/sup 0/ C. (i.e. ambient) to form a functional haloalkyl compound.
- Assignee:
- The United States of America as represented by the United States Department of Energy
- Patent Number(s):
- US 4511745
- OSTI ID:
- 5288055
- Country of Publication:
- United States
- Language:
- English
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Process for functionalizing alkanes
Process for functionalizing alkanes