Abstract: A process for the production of hydroxyamines of the formula IR.sup.1 --CH(OH)--CH(NHR.sup.3)--R.sup.2 (I)whereinR.sup.1 and R.sup.2 independently of one another are H or CH.sub.2 OH andR.sup.3 is H, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -hydroxyalkyl comprising reacting an oxo compound with an amine and reducing the resultant ketimine with a reducing agent.

Abstract: A modified sorbitol with improved tableting properties, viz, has a melting point of about 96.degree. C., a bulk density of 0.3-0.6 g/ml, a .gamma.-sorbitol content of at least 90%, a purity of at least 98%, a specific surface area of 0.7-1.5 m.sup.2 /g, a bending strength of at least 7 N/mm.sup.2 at a compressive force of at least 10,000 N, and a friability of less than 1% at a compressive force of at least 10,000 N, can be prepared by obtaining a sorbitol solution by hydrogenation of crystallized glucose at a temperature below 170.degree. C., and spray-drying this solution at a temperature of 140.degree. to 170.degree. C. The sorbitol thus obtained has a water content of less than 1%.The sorbitol is useful for the production of compressed formulations.

Abstract: A modified sorbitol with improved tableting properties, viz, has a melting point of about 96.degree. C., a bulk density of 0.3-0.6 g/ml, a .gamma.-sorbitol content of at least 90%, a purity of at least 98%, a specific surface area of 0.7-1.5 m.sup.2 /g, a bending strength of at least 7 N/mm.sup.2 at a compressive force of at least 10,000 N, and a friability of less than 1% at a compressive force of at least 10,000 N, can be prepared by obtaining a sorbitol solution by hydrogenation of crystallized glucose at a temperature below 170.degree. C., and spray-drying this solution at a temperature of 140.degree. to 170.degree. C. The sorbitol thus obtained has a water content of less than 1%.The sorbitol is useful for the production of compressed formulations.

Abstract: A process for preparing an N,N-disubstituted p-phenylenediamine of the formula ##STR1## wherein R.sup.1 is alkyl of 1-6 C atoms, R.sup.2 is alkyl of 1-6 C atoms or alkyl of 1-6 C atoms which is substituted by OH, lower alkoxy, a sulfo group or an alkylsulfonamido group and R.sup.3 is hydrogen or lower alkylor an acid addition salt thereof,comprises adding an alkyl nitrite, as a nitrosation agent,to an aqueous, acid suspension of the corresponding aniline derivative of the formula ##STR2## thereby forming the corresponding N,N-disubstituted p-nitroso-aniline, and subsequently hydrogenating the latter without isolation thereof from the reaction mixture.