A New Synthesis of Functionalized 2,2 '-Biimidazoles

[摘要]：A new two-step synthesis of N,N'-disubstituted 2,2'-biimidazoles from bisimidoyl chlorides is reported. The bisimidoyl chlorides react smoothly with (2,2-dimethoxyethyl) amine to give bisamidines that are subsequently cyclized to give the corresponding biimidazoles.

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