Bis ethers containing a 2,2'-biaryl radical and a process for their preparation
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United States of America Patent
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Feb 23, 1999
Grant Date -
N/A
app pub date -
Jun 20, 1997
filing date -
Jun 24, 1996
priority date (Note) -
Expired
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Abstract
The present invention relates to compounds of the formula (I) ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 are identical or different and, independently of one another, are hydrogen, an alkyl or alkoxy group having 1 to 4 carbon atoms, an alkenyl group having 2 to 4 carbon atoms, or R.sup.1 and R.sup.2 including the respective carbon atoms bound to them form a ring containing 6 carbon atoms, m and n independently of one another are 0 or 1 and (m+n) is 1 or 2, and R is an unsubstituted phenyl or naphthyl radical, or a phenyl or naphthyl radical substituted by an alkyl group having 1 to 4 carbon atoms or an amino or dialkylamino group containing a total of 2 to 8 carbon atoms, and to a process for their preparation.
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