Synthesis of Boc‐Amino Tetrazoles Derived from α‐Amino Acids
2009
Abstract A simple route for the synthesis of Boc-protected tetrazole analogs of amino acids starting from N α-Boc amino acids has been described. The [2 + 3] cycloaddition of Boc-α-amino nitrile and sodium azide in the presence of a catalytic amount of zinc bromide yielded the desired tetrazoles in good yields and purity. All the compounds obtained have been characterized by 1H and 13C-NMR and mass spectral studies.
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