Indene compound and novel process for producing indene compounds
AssigneeMitsui Toatsu Chemicals, Inc.
InventorsSatoshi Numata, Kiyoshi Nakatani, Noboru Yamazaki, Teruo Yuasa
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Abstract
Indene compounds of the formula ##STR1## wherein X represents a hydrogen atom, a halogen atom, a hydroxyl group or a methyl group, and y is 0 or an integer of 1 to 3, are produced by either heat-decomposing indene compounds of the formula ##STR2## wherein X and y are as defined, in the presence of an acid or alkaline catalyst; or heat-decomposing isopropenyl phenols of the formula ##STR3## wherein X and y are as defined, or oligomers or polymers thereof in the presence of an acid catalyst. 5-Hydroxy-1,1,3-trimethyl-2-indene corresponding to formula (III) is a novel compound.
Claims12
A process for producing an indene compound of the formula ##STR11## wherein X represents a hydrogen atom, a halogen atom, a hydroxyl group, or a methyl group, and y is 0 or an integer of from 1 to 3, which comprises heat-decomposing an indane compound of the formula ##STR12## wherein X and y are as defined, in the presence of an acid or alkaline catalyst.
A process as claimed in claim 6 wherein said temperature is from 150.degree. C. to 280.degree. C.
Dependencies are inferred from the claim text.