C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/295.2
C07D 213/61 (2006.01)
Patent
CA 1292746
ABSTRACT Alpha, beta- and beta, gamma-difluoropyridine compounds are prepared by contacting a beta-halo- alpha- or gamma- fluoropyridine compound or suitable precursor thereof with an effective amount of KF in a polar aprotic solvent (diluent) at an elevated temperature under substantially anhydrous conditions with removal of the difluoropyridine products essentially as they are formed. The starting material may optionally be added as the reaction proceeds to minimize decomposition. The reaction is also optionally conducted in the presence of an acid scavenger and/or a crown ether or other phase-transfer catalyst.
469676
Little John C.
Wilson Charles A.
Smart & Biggar
The Dow Chemical Company
LandOfFree
Preparation of difluoropyridine compounds 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 difluoropyridine compounds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of difluoropyridine compounds will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1241555