Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
O-DIISOCYANOBENZENES AND PRODUCTION THEREOF
Document Type and Number:
Japanese Patent JP01143850
Kind Code:
A
Abstract:

NEW MATERIAL:O-diisocyanobenzenes of formula I (R1 and R2 are H, halogen, lower alkyl, lower alkoxy, lower alkoxycarbonyl or R1 and R2 together form a naphthalene ring; R1 and R2 are not H at the same time).

EXAMPLE: 3,4-Diisocyanotoluene.

USE: A raw material for electrically conductive polymer having improved thermal stability and stable even at room temperature.

PREPARATION: The compound of formula I can be produced in high yield, by reacting formamides of formula II with a dehydration agent such as phosgene, phosgene-generating agent, thionyl chloride or phosphorus oxychloride, preferably phosgene or phosgene-generating agent, especially phosgene-generating agent in the presence of a basic amine, preferably an organic tertiary amine such as trimethylamine, triethylamine or pyridine.


Inventors:
Ito, Yoshihiko
Application Number:
JP1987000304301
Publication Date:
June 06, 1989
Filing Date:
November 30, 1987
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SUMITOMO CHEM CO LTD
International Classes:
C07C241/00; C07C67/00; C07C291/10; C07C241/00; C07C67/00; C07C291/00; (IPC1-7): C07C119/02