Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1983-01-05
1985-01-15
Chan, Nicky
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
562432, C07C14352, C07C14940
Patent
active
044938020
ABSTRACT:
o,o'-Dithiodibenzoic acids are prepared by a process wherein a diazotized anthranilic acid or anthranilate is reacted with sulfur dioxide in the presence of an acid, water and a copper salt, and if desired in the presence of an alkali metal iodide, in a 1st stage at from 20.degree. to 50.degree. C. and then in a 2nd stage at from 80.degree. to 100.degree. C.
The o,o'-dithiodibenzoic acids obtainable by the process of the invention are useful starting materials for the preparation of crop protection agents, dyes and drugs.
REFERENCES:
patent: 2064395 (1936-12-01), Tschunkur et al.
Jaedicke Hagen
Tonne Peter
BASF - Aktiengesellschaft
Chan Nicky
Shurtleff John H.
LandOfFree
Preparation of o,o'-dithiodibenzoic acids does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Preparation of o,o'-dithiodibenzoic acids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of o,o'-dithiodibenzoic acids will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1480819