Method for the preparation of 3-bromo-1,1,1-trifluoropropane

Details Method for the preparation of 3-bromo-1,1,1-trifluoropropane Method for the preparation of 3-bromo-1,1,1-trifluoropropane

1998-10-07

1999-10-05

Siegel, Alan

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

C07C 1907

Patent

active

059627549

ABSTRACT:
3-bromo-1,1,1-trifluoropropane is produced by reacting 3,3,3-trifluoropropene with hydrogen bromide at elevated temperature, e.g., 150.degree. C. to 800.degree. C., in the presence of an active carbon catalyst. The conversion, yield and selectivity are unexpectedly high.

REFERENCES:
patent: 2644845 (1953-07-01), McBee
patent: 2787646 (1957-04-01), Haszeldine
Speierr, J.L., et al., "Relative consecutive-competitive rate constants in the synthesis of organoalkoxysilanes using molten sodium" Organometallics (1991), 10(9), 3046-9 (Abstract only attached).
Horn, H.G., et al., "By-products in the synthesis of 3,3,3-trifuoro-1-bromopropane", Chem.-Ztg. (1981), 105(4), 123 (Abstract only attached).
Chen, K.S., et al., "Rearrangements and Conformations of Chloroaklyl Radicals by Electron Spin Resonance", J. Amer. Chem. Soc., vol. 96, 2201-8 (1974).
Haszeldine, R.N., et al., "Reactions of fluorocarbon radicals. V. Alternative syntheses for (trifluoromethyl)acetylene (3,3,3-trifluoroporpyne) and the infuluence of polyfluoro groups on adjacent hydrogen and halogen atoms.", J. Chem. Soc., (1951), 2495-504 (Abstract only attached).
Haszeldine, R.N., et al., "The addition of free radicals to unsatuarated systems. II. Radical addition of olefins of the type RCH:CH.sub.2.", J. Chem. Soc., (1953), 1199-1206 (Abstract only attached).
Henne, A.L., et al., "Influence of a CF.sub.3 Group on an Adjacent Double Bond." J. Amer. Chem. Soc., vol. 72, 3369 (1950).
Henne, A.L., et al., "Influence of a CF3 Group on an Adjacent Double Bond. III. Free Radical Additions", J. Amer. Chem. Soc., vol. 73, 5527-5528 (1951).

Affiliated with

Also associated with

Rating

Method for the preparation of 3-bromo-1,1,1-trifluoropropane does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for the preparation of 3-bromo-1,1,1-trifluoropropane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the preparation of 3-bromo-1,1,1-trifluoropropane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1173644