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US 4,049,727 AGranted
Polyhaloindene compounds
AssigneeHooker Chemicals & Plastics Corporation
InventorSamuel Gelfand
Life of this patent
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Abstract
New compounds and a process for the preparation thereof are disclosed of the formula: ##STR1## WHEREIN EACH R is independently halogen or lower alkyl and n is from 2 to 4. These compounds are useful as chemical intermediates and fire retardant additives.
Claims12
Compounds of the formula:
- ##STR5## wherein R is independently selected from the group consisting of chlorine, bromine, fluorine, and lower alkyl and n is 2 to 4 providing when every R is chlorine, n is from 2- 3.
A process for the preparation of compounds of the formula:
- ##STR6## wherein each R is independently halogen or lower alkyl and n is 2 to 4, comprising reacting a substituted aromatic of the formula ##STR7## wherein each R is independently selected from the group consisting of chlorine, bromine, fluorine and lower alkyl and n is from 2 to 4 providing there is unsubstitution on at least two adjacent carbon atoms of the aromatic, with hexachloropropylene in the presence of a catalytic amount of ferric chloride.
Dependencies are inferred from the claim text.