abstract |
A process using microorganisms which contain genes, which form an active xylene monooxygenase, which form no effective, chromosomally or plasmid-coded alcohol hydrogenase, and which are, thus, capable of hydroxylating methyl groups on aromatic 5- or 6-atom heterocycles to the corresponding hydroxymethyl derivatives, for the production of hydroxymethylated 5- or 6-atom heterocycles. |