Action of alkali metals in liquid ammonia on substituted thiophenes. Communication 9. Preparation of 5-mercapto-4-ketoalkanoic acids by reductive cleavage of 4-acetylamino- and 4-nitrothiophene-2-carboxylic acids
Action of alkali metals in liquid ammonia on substituted thiophenes. Communication 9. Preparation of 5-mercapto-4-ketoalkanoic acids by reductive cleavage of 4-acetylamino- and 4-nitrothiophene-2-carboxylic acids