Abstract: A process for the production of piperazinylpyrimidine derivatives of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and each is a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group, branched or unbranched. These piperazinylpyrimidine derivatives are acid-converted with cyanamide to an amidine salt starting from piperazine or its hydrate and then reacted with a dicarbonyl compound in the presence of a base to the end product.

Abstract: Enantiomer-free 2,2,4-trisubstituted 1,3-dioxolanes of the general formula: ##STR1## wherein R.sup.1 and R.sup.2 are either the same and are (a) hydrogen or(b) alkyl groups with 1 to 4 C atoms or(c) aryl groups or(d) arylalkyl groupsor R.sup.1 and R.sup.2 together are a 1,4-butanediyl or 1,5-pentanediyl group, and X is either a hydroxy group or, with the assumption that R.sup.1 and R.sup.2 are not aryl groups, NHR.sup.3 wherein R.sup.3 is alkyl with 1 to 8 C atoms or aryl, are produced by electrolysis of a substated theronic acid or erythornic acid or a salt thereof into a substituted 1,3-dioxolane-4-carbaldehyde. The substituted 1,3-dioxolane-4-carbaldehyde is converted by reduction or reductive amination, without being ioslated, into the enantiomer-free 2,2,4-trisubstituted 1,3-dioxolane. A substantial advantage of the electrochemical process is that only carbon dioxide and hydrogen are produced which escape by themselves as gases from the electrolyte.

Abstract: Process for the production of optically-active beta-methylcholine from optically active 3-chloro-2-oxy-propyltrimethyl ammonium chloride.