Conversion of trans- to cis-N,N-dimethyl-9-[3-(4-methyl-1-pipera

Details Conversion of trans- to cis-N,N-dimethyl-9-[3-(4-methyl-1-pipera Conversion of trans- to cis-N,N-dimethyl-9-[3-(4-methyl-1-pipera

1976-10-20

1978-08-15

Demers, Arthur P.

Harness for working animal

260328, 260707, C07D40906

Patent

active

041074300

ABSTRACT:
Trans-N,N-dimethyl-9-[3-(4-methyl-1-piperazinyl)propylidene]-thioxanthene-2 -sulfonamide is isomerized to the cis-isomer by contacting the trans-isomer with strong base in a polar organic solvent. By using an organic solvent in which the solubility of the cis-isomer is substantially less than that of the trans-isomer, the cis-isomer can be selectively precipitated from said solvent, thereby favoring additional isomerization to the cis-isomer in the supernatant, and separated.

REFERENCES:
patent: 3115502 (1963-12-01), Schlapfer et al.
patent: 3310553 (1967-03-01), Bloom et al.
patent: 3514449 (1970-05-01), Tretter
patent: 3681346 (1972-08-01), Petersen et al.

Affiliated with

Also associated with

Rating

Conversion of trans- to cis-N,N-dimethyl-9-[3-(4-methyl-1-pipera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Conversion of trans- to cis-N,N-dimethyl-9-[3-(4-methyl-1-pipera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Conversion of trans- to cis-N,N-dimethyl-9-[3-(4-methyl-1-pipera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1436845