Rhenium tricarbonyl complexes of 1-benzyl-4-(5-bipyridyl)-1H-1,2,3- triazoles

摘要

Copper(l) catalyzed [3+2] cycloaddition reactions between 5-ethynylbipyridine and benzyl, p-methylbenzyl, or m-bromobenzyl azides yields the corresponding l-benzyl-4-(5-bipyridyl)-lH-l,2,3-triazoles 1-3. Reaction between 1-3 and [NEt_4J_2[Re(CO)_3Br_3] yields the [l-benzyl-4-(5-bipyridyl)-lH-l,2,3-triaZoIe]Re(CO)_3Br complexes 4-6. The Re(CO)_3Br complexes of 5- and 6-ethynylbipyridine complexes (78) are prepared in a similar fashion. Cycloaddition reactions between 7 and benzyl azide yields mixtures of 4 and unreacted starting material.