C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
260/537.8
C07F 9/34 (2006.01) C07F 9/42 (2006.01)
Patent
CA 1181091
PROCESS FOR MAKING ALKYL OR ARYLTHIOPHOSPHONIC ACID DICHLORIDES ABSTRACT OF THE DISCLOSURE The disclosure relates to a process for making alkyl or arylthiophosphonic acid dichlorides by reacting alkyl or aryl- dichlorophosphanes with sulfur at a temperature above the melt- ing point of sulfur and in the presence of a catalyst. More particularly, the reaction is effected at a temperature between the melting point of sulfur and the boiling point of the resulting alkyl or arylthiophosphonic acid dichloride and in the presence of a catalyst of the following general formula I or II Image (II) in which R1, R2, R3 and R4 stand for identical or different alkyl, aryl, alkaryl or aralkyl groups having from 1 to 22 carbon atoms and A stands for the anionic group of an orga- nic or inorganic acid.
407534
Clariant Gmbh
Fetherstonhaugh & Co.
LandOfFree
Process for making alkyl or arylthiophosphonic acid dichlorides does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for making alkyl or arylthiophosphonic acid dichlorides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making alkyl or arylthiophosphonic acid dichlorides will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1236623