Degussa Aktiengesellschaft

Degussa Aktienbesellschaft

Robert S Nygren

Rudolf M Wagner

Axel Kleemann

Peter Werle

Wolfgang Merk

The production of 3-mercapto-propanediol-1,2 is attained with good yields and in an industrially simple manner by reacting liquid hydrogen sulfide with glycidol under pressure, namely either in the presence of aluminum oxide or a sodium aluminum silicate, i.e., in heterogeneous phase or in the presence of an alkali or alkaline earth hydroxide dissolving in reaction medium, i.e. in homogeneous phase.

Process for the production of 3-mercapto-propanediol-(1,2)

Guaiacol glycerine ether is obtained in very good yield and in very high purity by reacting glycidol with o-methyoxyphenol in the presence of an alkali hydroxide, an alkali alcoholate, an alkali cyanate or an alkali thiocyanate at 80.degree. to 150.degree. C. An especially effective purification of the crude product can be obtained by adding hydrogen peroxide, preferably prior to cooling.

Process for the production of guaiacol glycerine ether

The production of 1-amino-propanediol-2,3 is attained with good yields and in an industrially simple manner by reacting liquid ammonia with glycidol under pressure in the presence of a small amount of an organic solvent.

Process for the production of 1-amino-propanediol-2,3

The yield of 1-amino-propanediol-2,3 is greatly increased and the process is carried out in an industrially simple manner by reacting liquid ammonia with glycidol under pressure and in the presence of a small amount of water.

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Hanau, Germany

Robert S Nygren