1,3-DI-ARYLMETHOXY-4,6-DINITRO-BENZENES, PROCESS FOR THEIR PREPARATION AND PROCESS FOR THE PREPARATION OF 4,6-DIAMINORESORCINOL

The new 1,3-di-arylmethoxy-4,6-dinitrobenzenes of the formula (I) in which R1 and R2 independently of one another denote hydrogen or C1-C4-alkyl and Ar represents C6-C12-aryl, can be prepared by reaction of 1,3-dihalogeno-4,6-dinitro-benzenes of the formula (III), in which Hal represents chlorine or...

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Bibliographic Details
Main Authors HEINZ; UWE, BLANK; HEINZ U
Format Patent
LanguageEnglish
Published 10.12.1991
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:The new 1,3-di-arylmethoxy-4,6-dinitrobenzenes of the formula (I) in which R1 and R2 independently of one another denote hydrogen or C1-C4-alkyl and Ar represents C6-C12-aryl, can be prepared by reaction of 1,3-dihalogeno-4,6-dinitro-benzenes of the formula (III), in which Hal represents chlorine or bromine, with an arylmethanol of the formula Ar-C(R1, R2)OH (IV), in which R1, R2 and Ar have the said meaning, and a strong base in the temperature range from 0 DEG to 100 DEG C. These di-arylmethoxy-dinitro-benzenes can be converted into 4,6-diaminoresorcinol by catalytic reduction with hydrogen.
Bibliography:Application Number: US19900526357