Biphenyl compounds and method of preparing same

Details Biphenyl compounds and method of preparing same Biphenyl compounds and method of preparing same

1981-10-22

1983-11-22

Chan, Nicky

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

568746, 568643, 568592, 568331, 568 49, 568 47, 560255, 560108, 549472, 260463, C07D30912, C07C 69017, C07C 43205

Patent

active

044170645

ABSTRACT:
The present invention relates to novel biphenyl compounds of the formula ##STR1## wherein one of R.sup.1 and R.sup.2 is hydrogen and the other is --CH.sub.3-m X.sub.m wherein X is chloro or bromo and m is an integer one or two, and the cyclic moiety A is a -2,5-; -2,3-; or -3,4-di-OR-1-phenyl moiety wherein R is a hydroxy-protecting group and to a method of preparing same. The biphenyl compounds are useful as intermediates in preparing redox compounds containing a phenylhydroquinone or phenylcatechol moiety.

REFERENCES:
patent: 3406064 (1968-10-01), Land
patent: 3600177 (1971-08-01), Abbott et al.
patent: 3617272 (1971-11-01), Stewart
patent: 3617277 (1971-11-01), Stewart
patent: 4279987 (1981-07-01), Ogi et al.
Misiorny et al., Acta Pharm. Suecia, 14, 105, (1977).
Morrison and Boyd, "Organic Chemistry", 3rd Ed., Allyn and Bacon Inc., Boston, 1973, pp. 386-389.
Offermann et al., Synthesis, Apr. 1977, pp. 272-273.
Friedrich et al., J. Org. Chem. 34, 900, (1969).

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