Title:
IMPROVED METHOD FOR PREPARATION OF CARBONATE OF HYDROXY AROMATIC COMPOUND
Document Type and Number:
Japanese Patent JP2559192
Kind Code:
B2
Abstract:
PURPOSE: To obtain the carbonates of the hydroxy aromatic material.
CONSTITUTION: The process of stoichiometric carbonation comprises (a) mixing together (1) hydroxy aromatic material, (2) enough quantity of dialkyldicarbonate to provide a desired degree of substitution, (3) tertiary amine not to suffer from steric hindrance of a catalytic quantity and (4) a solvent in a reactor; (b) stirring the reaction mixture; (c) precipitating alkylcarbonates of hydroxy aromatic material; and (d) recovering the alkylcarbonates of hydroxy aromatic material.
Inventors:
GUREGORII BUREITA
DANIERU JOZEFU DOOSON
MAAMUUDO MOSUTAFUA KOOJASUTEE
RANII WAIIRIN KUON
ERUTSUDO HAABAATO MEISHII
DEIBITSUDO HOORU MERITSUTO
UEIN MAATEIN MOROO
SUTANREE YUUJIIN PEROO
HAABANZU SHINGU
DANIERU JOZEFU DOOSON
MAAMUUDO MOSUTAFUA KOOJASUTEE
RANII WAIIRIN KUON
ERUTSUDO HAABAATO MEISHII
DEIBITSUDO HOORU MERITSUTO
UEIN MAATEIN MOROO
SUTANREE YUUJIIN PEROO
HAABANZU SHINGU
Application Number:
JP819693A
Publication Date:
December 04, 1996
Filing Date:
January 21, 1993
Export Citation:
Assignee:
INTAANASHONARU BIJINESU MASHIINZU CORP
International Classes:
B01J31/02; C07B61/00; C07C68/06; C07C69/96; C08F8/00; C08F12/24; C08G8/28; (IPC1-7): C07C69/96; B01J31/02; C07C68/06
Attorney, Agent or Firm:
Koichi Tonmiya (1 person outside)