Process for preparing diazomethane derivative

A crystalline diazomethane derivative of the formula: wherein R1 and R2 are, the same or different, a substituted or unsubstituted aromatic group is prepared by a process comprising concentrating and drying a solution of the diazomethane derivative in an organic solvent under reduced pressure at a t...

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Bibliographic Details
Main Authors SAKAMOTO, SUKEHIKO, SAKAI, TAMIO, SHIRAISHI, YOSHIHISA, HIRAYAMA, YOSHIHIKO, SAIJO, SHIGEYA, KOHNO, YUKITOMO
Format Patent
LanguageEnglish
French
German
Published 09.04.1986
Edition4
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:A crystalline diazomethane derivative of the formula: wherein R1 and R2 are, the same or different, a substituted or unsubstituted aromatic group is prepared by a process comprising concentrating and drying a solution of the diazomethane derivative in an organic solvent under reduced pressure at a temperature not higher than 30 DEG C while applying shearing force on a viscous cake.
Bibliography:Application Number: EP19850306773