Process for preparing chlorinated hydroquinone dimethyl ethers

Details Process for preparing chlorinated hydroquinone dimethyl ethers Process for preparing chlorinated hydroquinone dimethyl ethers

1976-09-15

1978-01-03

Helfin, Bernard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 4100

Patent

active

040667081

ABSTRACT:
Chlorinated hydroquinone dimethyl ethers of the formula ##STR1## wherein R is H or Cl are prepared by reacting p-benzoquinone tetramethyl diketals of the formula ##STR2## wherein R is defined as above, with an excess of hydrogen chloride in an aprotic solvent at a temperature from about -50.degree. to +50.degree. C. The products I are valuable intermediates for the preparation of dyestuffs, insecticides and pharmaceutics.

REFERENCES:
weinberg et al., J.A.C.S., vol. 85, (1963), pp. 2525-2526.

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