Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PRODUCTION OF ACID HALIDE
Document Type and Number:
Japanese Patent JP3223112
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To obtain a compound advantageously in terms of economic and environmental aspects by reacting a carboxlic acid with a haloiminium salt.
SOLUTION: (A) A carboxlic acid containing a hydroxyl group and/or amino group (e.g. 5-amino-2,4,6-triiodoisophthalic acid) is reacted with (B) a haloiminium salt of the formula (R1 and R2 are each a lower alkyl; X is a halogen; (n) is 2 or 3) (e.g. 2-chloro-1,3-dimethylimidazolium chloride). The amount of the component B used based on the component A is equal to or more than stoichiometric amount (especially preferably 1.1-1.3 times as much as the stoichiometric amount of the compound A). The reaction is carried out at room temperature to 70°C for several hours to tens hours. Lauric acid chloride may be cited as the compound.


Inventors:
Nagata, Teruyuki
Hayashi, Hidetoshi
Mizuta, Hideki
Application Number:
JP14938696A
Publication Date:
October 29, 2001
Filing Date:
June 11, 1996
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUI TOATSU CHEM INC
International Classes:
B01J31/02; C07B41/10; C07C51/60; C07C53/42; C07C55/36; C07C57/66; C07C63/10; C07C63/30; C07C65/03; C07C227/18; C07C229/62; (IPC1-7): C07C51/60; B01J31/02; C07B41/10; C07C53/42; C07C55/36; C07C57/66; C07C63/10; C07C63/30; C07C65/03; C07C227/18; C07C229/62



 
Previous Patent: 柱巻き用ディスプレイハンガー

Next Patent: SHOWCASE