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METHOD OF PREPARING ALKALI METAL SALTS OF SULPHONIC ACIDS AND SULPHONAMIDE 6,6-METHYLENE-BIS(2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLINONE) DERIVATIVES AND DIMER AND TRIMER CONDENSATION PRODUCTS THEREOF
METHOD OF PREPARING ALKALI METAL SALTS OF SULPHONIC ACIDS AND SULPHONAMIDE 6,6-METHYLENE-BIS(2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLINONE) DERIVATIVES AND DIMER AND TRIMER CONDENSATION PRODUCTS THEREOF