PROCEDE DE PREPARATION DE DERIVES DE L'OXYDE DE DIPHENYLE

The invention relates to a process for the preparation of compounds of formula (I) wherein R1 stands for hydrogen or the group COR2, wherein R2 stands for a straight or branched chained alkyl having 1 to 8 carbon atoms optionally substituted with phenyl, naphthyl, tetrahydronaphthyl or m-phenoxy-ben...

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Main Author GERGELY HEJA, DEZSO KORBONITS, ENDRE PALOSI, PAL KISS, CSABA GONCZI, IDA SZVOBODA NEE KANZEL, EDE MARVANYOS, JUDITH KUN, MARIA SZOMOR NEE WUNDELE, GABOR SZABO, TAMAS KALLAY ET LASZLO LEDNICZKY
Format Patent
LanguageFrench
Published 04.04.1986
Edition4
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:The invention relates to a process for the preparation of compounds of formula (I) wherein R1 stands for hydrogen or the group COR2, wherein R2 stands for a straight or branched chained alkyl having 1 to 8 carbon atoms optionally substituted with phenyl, naphthyl, tetrahydronaphthyl or m-phenoxy-benzyl, cycloalkyl having 3 to 6 carbon atoms optionally substituted with one or more straight or branched chained alkyl or alkenyl having 1 to 6 carbon atoms, phenyl or naphthyl. The compounds of formula (I) are prepared according to the invention by (a) reacting esters of formula (II) wherein X stands for chlorine or bromine and R2 has the same meanings as defined above with a phenol alkali metal salt and (b) if desired converting the diphenyl ethers so obtained to a specific compound of formula (I), m-phenoxybenzyl alcohol by the hydrolysis of the ester group.
Bibliography:Application Number: FR19810013435