Biphenyl aldehydes
AssigneePolaroid Corporation
InventorAvinash C. Mehta
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Abstract
Biphenyl compounds of the formula ##STR1## wherein one of R.sup.1 and R.sup.2 is hydrogen and the other is --CHO and the cyclic moiety A is a -2,5-; 2,3; or 3,4-di-OR-1-phenyl moiety wherein R is hydrogen or a hydroxy-protecting group are disclosed. The compounds are useful as intermediates in preparing redox compounds containing a phenylhydroquinone or phenylcatechol moiety.
Claims13
A compound of the formula ##STR16## wherein one of R.sup.1 and R.sup.2 is hydrogen and the other is --CHO and the cyclic moiety A is -2,5-;
- -2,3-;
- or -3,4-di-OR-1-phenyl moiety wherein R is hydrogen or a hydroxy-protecting group capable of removal so as to regenerate the hydroxy group.
A compound of the formula ##STR17## wherein R is hydrogen or a hydroxy-protecting group capable of removal so as to regenerate the hydroxy group.
Dependencies are inferred from the claim text.