Process for functionalizing methane

Details Process for functionalizing methane Process for functionalizing methane

C - Chemistry, Metallurgy

07

C

260/654, 260/663

C07C 17/10 (2006.01) C07F 15/00 (2006.01) C07C 19/02 (1990.01)

Patent

CA 1276940

ABSTRACT OF THE DISCLOSURE A process for functionalizing methane is disclosed. The process comprises reacting methane with a hydridoalkyl metal complex of the formula: CpIr[p(R1)3]H(R2) wherein Cp represents a cyclopentadienyl or alkylcyclopentadienyl radical having from 1 to 5 carbon atoms; Ir represents an iridium atom; P represents a phosphorus atom; R1 represents an alkyl group; R2 represents an alkyl group having at least two carbon atoms; and H represents a hydrogen atom, in the presence of a liquid alkane R3H having at least three carbon atoms to form a hydridomethyl complex of the formula: CpIr[P(R1)3]HMe where Me represents a methyl radical reacting aid hydridomethyl complex with an organic halogenating agent such as a tetrahalomethane or a haloform to halomethyl complax having the formula: CpIr[P(R1)3]MeX reacting said halomethyl complex with a mercuric halide of the formula HgX2 to form a methyl mercuric halide of the formula HgMeX and reacting said methyl mercuric halide with a molecular halogen of the formula X2 to form methyl halide. The process can be carried out at relatively mild conditions and enables starting materials to be regenerated and reused.

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