Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1986-08-08
1989-08-29
Brust, Joseph Paul
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
546321, 546322, C07D21102, C07D21182, C07D213133, C07D21355
Patent
active
048618934
ABSTRACT:
A process is disclosed for the preparation of a compound of formula (I): ##STR1## where Ar is aryl or substituted aryl and R.sup.3 and R.sup.4 are the same or different and each is alkyl, which process comprises hydrognating a compound of formula (II): ##STR2## wherein Ar, R.sup.3 and R.sup.4 are as defined with respect to formula (I) and Hal is a halogen atom.
Compounds of formula (I) are useful as chemical intermediates.
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Beecham Group plc.
Brust Joseph Paul
Haley, Jr. James F.
Hubbard Eric R.
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