Process for making tetra (methyl-ethyl) lead compounds

Details Process for making tetra (methyl-ethyl) lead compounds Process for making tetra (methyl-ethyl) lead compounds

1976-10-13

1978-01-17

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07F 726

Patent

active

040692370

ABSTRACT:
Tetraethyl lead is reacted with 0.5 to 4 moles of CH.sub.3 X per mole of tetraethyl lead, in the presence of a catalytic amount of AlY.sub.3, wherein X and Y are independently chloride, bromide, or iodide, at a temperature up to about 130.degree. C, with the proviso that the reaction is conducted in the presence of an iodine-source selected from AlI.sub.3, elemental iodine, C.sub.1 to C.sub.4 alkyl iodide and the like. The products are tetra(methyl-ethyl) lead redistribution compounds useful as fuel antiknocks.

REFERENCES:
patent: 2270108 (1942-01-01), Calingaert et al.
patent: 2414058 (1947-01-01), Pearsall
Tagliavini et al., Chemical Abstracts, 53, 1985/d, (1959).
Korshirnov et al., Chem. Abstracts, 54, 1298/b, (1960).

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