The enantioselective formation of chiral crystal of achiral nucleobase cytosine was achieved mediated by the crystal direction selective dehydration of crystal water in the achiral crystal of cytosine monohydrate (P21/c). Heat transfer from the enantiotopic face of the single crystal of cytosine monohydrate afforded the enantiomorphous crystal of anhydrous cytosine.

The enantioselectivity of the autocatalytic alkylation of 2-tert-butylpyrimidyl-5-carbaldehyde, initiated by chiral crystals of N-(2-thienylcarbonyl)glycine, is predicted computationally. The results are in accord with the correlation of the stereochemical outcome of the reaction and the absolute structure of the crystals determined by the anomalous dispersion of X-rays and circular dichroism spectroscopy.

Enantiomorphous crystals of adeninium dinitrate acted as the source of chirality in asymmetric autocatalysis producing highly enantioenriched (S)- and (R)-5-pyrimidyl alkanols, with the absolute configurations corresponding to that of crystals.

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