Process for the preparation and purification of 3-(4-lithiosulfo

Details Process for the preparation and purification of 3-(4-lithiosulfo Process for the preparation and purification of 3-(4-lithiosulfo

1976-09-16

1978-02-14

Chan, Nicky

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C14346

Patent

active

040738027

ABSTRACT:
An improved process for the preparation of 3-(4-lithiosulfophenoxy)-1,2-propanediol relatively free from inorganic impurities is represented wherein the subject material is made by reacting lithiosulfophenol with either glycerol monochlorhydrin or epichlorohydrin in aqueous solution in the presence of an alkaline calcium compound and thereafter purifying by removing the calcium sulfate and hydrochloric acid from the aqueous reaction media. The subject material can be obtained at purities of 98% in yields exceeding 70%.

REFERENCES:
patent: 3706712 (1972-12-01), Davis et al.

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