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Pepro SA
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Pepro SA
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Application filed by Pepro SAfiledCriticalPepro SA
Priority to ES383387ApriorityCriticalpatent/ES383387A1/en
Publication of ES383387A1publicationCriticalpatent/ES383387A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Procedure for obtaining dicyano-alkylphenols, of the formula **(See formula)** in which R represents hydrogen or an alkyl radical containing from 1 to 5 carbon atoms; R'represents hydrogen, a particularly alkali metal, an amine residue, an alkyl radical or an acyl radical of formula R1CO in which R1 represents an alkyl radical, characterized in that it comprises treating a 2,4-dihalogeno-6-alkylphenol with a methylating agent, such as methyl sulfate to block phenol function, and then transform the product obtained into an isophthalic acid derivative by carbonation in the presence of magnesium, transform the diacid obtained into dinitrile by successive action of a sulfuryl, ammonia, and then P2O5 and in dealkylating the product obtained by the action of an alkali halide, and after a strong acid. (Machine-translation by Google Translate, not legally binding)
ES383387A1970-09-041970-09-04Procedure for obtaining dician-alkylphenols. (Machine-translation by Google Translate, not legally binding)
ExpiredES383387A1
(en)
Procedure for the preparation of amidas derived from the steres of piperazin-1 propionic acid. (Machine-translation by Google Translate, not legally binding)
Procedure for the obtaining of a hetitic dieter of a dihydroxycide of pharmaceutical interest. (Machine-translation by Google Translate, not legally binding)