The possibility of the separation into optical antipodes of racemic amino acids of the pyrazole series has been investigated. The trans configuration of the acrylic acids.

The possibility of the separation into optical antipodes of racemic amino acids of the pyrazole series has been investigated. The trans configuration of the acrylic acids.

We have synthesized a series of optically active substituted-aminoethylphosphonic acids and their ethyl esters

The yield of products from the condensation of aliphatic ketones with diethyl phosphite and ammonia depends on the order of introduction of the reactants into the reaction.

Optically active phosphonic analogues of alanine, valine, leucine, phenylalanine, and phenylglycine were obtained by resolution of diphenyl 1-aminoalkanephosphonates with dibenzoyl-L-tartaric acid anhydride.