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REGIOSELECTIVE ALPHA-METALLATIONS AND BETA-METALLATIONS OF THIOPHENE DERIVATIVES BEARING THE 4,4-DIMETHYLOXAZOLIN-2-YL GROUP - APPLICATION OF THE METHOD TO SYNTHESES OF 2,3-DISUBSTITUTED AND 2,5-DISUBSTITUTED THIOPHENE DERIVATIVES
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JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1,
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