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- [8] STUDIES ON NEW SYNTHETIC PATHWAYS TO DELTA-ALPHA,BETA-BUTENOLIDES FROM ALPHA-METHYLBUTANOLIDES .3. REGIOSPECIFIC PREPARATION OF ALPHA-METHYL-DELTA-ALPHA,BETA-BUTENOLIDES AND ALPHA-METHYLENE-GAMMA-BUTYROLACTONES BY ELECTROLYSIS OF ALPHA-CARBOXY-ALPHA-METHYLBUTANOLIDES AND BY OXIDATION OF ALPHA-DIMETHYLAMINO-ALPHA-METHYLBUTANOLIDES IN A FUSED LACTONE SYSTEMEN CHEMICAL & PHARMACEUTICAL BULLETIN, 1980, 28 (01) : 282 - 287