Direct Imidation to Construct 1H‐Benzo[d]imidazole through PdII‐Catalyzed CH Activation Promoted by Thiourea

A new and straightforward method to construct 1H-benzo[d]imidazole was developed by means of PdII-catalyzed intramolecular CH activation starting from easily available N-phenylbenzimidamide (see scheme). The detailed mechanism studies indicated that a palladacycle monomer or dimer is the key intermediate for this transformation and thiourea was used for the first time to promote the efficiency of CH activation. Detailed facts of importance to specialist readers are published as "Supporting Information". Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.