PREPARATION OF DIAZOMETHANE DERIVATIVE

PURPOSE:To obtain a diazomethane derivative useful as a protective group of carboxyl group site of an organic compound, by oxidizing a hydrazone derivative with available hydrogen peroxide as an oxidizing agent. CONSTITUTION:A hydrazone derivative of formula I: [R and R are (un)substituted aromatic...

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Bibliographic Details
Format Patent
LanguageEnglish
Published 29.09.1979
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
METALLURGY
ORGANIC CHEMISTRY
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Summary:PURPOSE:To obtain a diazomethane derivative useful as a protective group of carboxyl group site of an organic compound, by oxidizing a hydrazone derivative with available hydrogen peroxide as an oxidizing agent. CONSTITUTION:A hydrazone derivative of formula I: [R and R are (un)substituted aromatic group) is oxidized with 20% or more of hydrogen peroxide in the presence of a catalyst at room temperature -40 deg.C to form a diazomethane derivative. For example, 1,1-diphenyldiazomethane can be obtained quantitatively.
Bibliography:Application Number: JP19780031646