Method of making aluminum alkyls
AssigneeEthyl Corporation
InventorSteven P. Diefenbach
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Abstract
A method of making aluminum alkyls utilizing an uncatalyzed exchange reaction wherein an aluminum trialkyl is reacted with an alkyl iodide in which the alkyl group differs from at least one of the alkyl groups of the aluminum trialkyl to form an aluminum trialkyl having the alkyl radical of the alkyl iodide reactant and an alkyl iodide having the alkyl radical of the aluminum trialkyl reactant. In particular, triethyl aluminum is reacted with methyl iodide to form trimethylaluminum and ethyl iodide. Aralkyl groups may be substituted for the alkyl groups to produce corresponding aralkyl compounds.
Claims20
A method of making aluminum alkyl or aralkyl compounds comprising reacting a trialkyl or triaralkyl aluminum compound with an alkyl or aralkyl iodide in which the alkyl or aralkyl group differs from at least one of the alkyl or aralkyl groups of the trialkylaluminum compounds at a temperature of from about -20.degree. C. to about 200.degree. C. to form via an uncatalyzed exchange reaction a trialkylaluminum compound product having the alkyl or aralkyl radical of the alkyl or aralkyl iodide reactant and an alkyl or aralkyl iodide having the alkyl or aralkyl radical of the trialkyl or triaralkylaluminum compound.
A method of making aluminum alkyl compounds comprising the following uncatalyzed reaction:
- R.sub.3 Al+3R'I.revreaction.R'.sub.3 Al+3RI
- wherein
- R=C.sub.2 -C.sub.22 alkyl group and
- R'=C.sub.1 -C.sub.20 alkyl group different from R;
- and,
- said reaction is carried out at a temperature of about -20.degree. C. to about 200.degree. C.
Dependencies are inferred from the claim text.