Process for preparing 1-(2,6,6-trimethyl-1,3-cyclohexadien-1-yl)

Details Process for preparing 1-(2,6,6-trimethyl-1,3-cyclohexadien-1-yl) Process for preparing 1-(2,6,6-trimethyl-1,3-cyclohexadien-1-yl)

1978-03-17

1979-06-05

Morgenstern, Norman

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

131 17R, 252 89R, 252132, 252522, 424 59, 424 61, 424 63, 424 65, 424 69, 424 70, 424 76, C07C 4961

Patent

active

041573501

ABSTRACT:
Described is a process for preparing an equilibrium mixture containing 1-(2,6,6-trimethyl-1,3-cyclohexadien-1-yl)-1,3-butanedione and its enol, which equilibrium mixture contains compounds having the structures: ##STR1## which process involves first reacting a methyl magnesium halide with 1-acetyl-2,6,6-trimethyl-1,3-cyclohexadiene to form a first organometallic compound; reacting the first organometallic compound with an acetyl halide to form a second organometallic compound, a novel intermediate; and then reacting said second organometallic compound with a hydrolyzing agent such as aqueous acid to form said equilibrium mixture.

REFERENCES:
patent: 4076853 (1978-02-01), Light et al.

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