Title:
ジカルボン酸二塩化物の製造方法
Document Type and Number:
Japanese Patent JP4012566
Kind Code:
B2
Abstract:
The present invention refers to a process for the preparation of 5-amino-2,4,6-triiodo-1,3-benzenedicarboxylic acid dichloride, comprising the reaction in heterogeneous phase between 5-amino-2,4,6-triiodo-1,3-benzenedicarboxylic acid and thionyl chloride, in a solvent selected from the group consisting of: (C7-C16) linear or branched hydrocarbons, (C7-C8) aromatic hydrocarbons, 1,1,1-trichloroethane, n-butylacetate, diglyme (diethylenglycoledimethylether), and in the presence of a catalytic amount of a tertiary amine.
Inventors:
Mauro, Marina
Biscaldi, Carlo Ferris
Gagna, Massimo
Biscaldi, Carlo Ferris
Gagna, Massimo
Application Number:
JP53534596A
Publication Date:
November 21, 2007
Filing Date:
May 17, 1996
Export Citation:
Assignee:
BRACCO IMAGING S.p.A.
International Classes:
C07C227/18; C07C229/62; C07C313/06; C07C381/10; C07C313/00
Domestic Patent References:
| JP58131970A | ||||
| JP59103857A | ||||
| JP56029553A | ||||
| JP58074643A | ||||
| JP5502230A | ||||
| JP7504179A |
Attorney, Agent or Firm:
Hajime Tsukuni
Fumio Shinoda
Fumio Shinoda