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Application filed by Andrej A Sanjavskij, Dimitrij A TroenkinfiledCriticalAndrej A Sanjavskij
Priority to CS866372ApriorityCriticalpatent/CS271094B1/cs
Publication of CS637286A1publicationCriticalpatent/CS637286A1/cs
Publication of CS271094B1publicationCriticalpatent/CS271094B1/cs
Method for the preparation of 2,2,3,3-tetrachloro-2,3-dihydro-1,4-benzodioxines, and the compound 6-isocyanato-2,2,3,3-tetrachloro-2,3-dihydro-1,4-benzodioxine