Chlorofluoro (hydro) carbon conversion process

Details Chlorofluoro (hydro) carbon conversion process Chlorofluoro (hydro) carbon conversion process

1994-10-14

1995-07-04

Siegel, Alan

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

Organic compounds

Halogen containing

C07C 1908

Patent

active

054302013

ABSTRACT:
A process for preparing R113a from R113, and R123 from R123a or R123b by rearrangement over AlCl.sub.3, in which when the reaction mixture is heated sudden start-up of the reaction, which often causes large amounts of heat to be released and the reaction to run away, is prevented by using a specially activated AlCl.sub.3, which has been activated by means of a metal halide selected from the group consisting of NaF.nHF with 0<n.ltoreq.2, AgCl and FeCl.sub.3. In addition to it being considerably easier to control the reaction, shorter reaction times for the rearrangement and a decrease in the amount of by-products which are formed, are observed.

REFERENCES:
patent: 2598411 (1952-05-01), Miller et al.
patent: 3087974 (1963-04-01), Hauptschein et al.
patent: 3398202 (1968-08-01), Foulletier
patent: 4570023 (1986-02-01), Petruck et al.
patent: 4925993 (1990-05-01), Zawalski
patent: 4950815 (1990-08-01), Moore et al.
Okuhara, J. Org. Chem., vol. 43, No. 14, pp. 2745-2749 (1978).
Hellberg et al., Chemiker-Zeitung (Chemist Magainze), vol. 93, No. 6, pp. 209-211 (1969).

Affiliated with

Also associated with

Rating

Chlorofluoro (hydro) carbon conversion process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Chlorofluoro (hydro) carbon conversion process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chlorofluoro (hydro) carbon conversion process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-761547