9-Azajulolidine (1) is a strong acylation catalyst, which displays remarkably enhanced catalytic activity toward the acylation of sterically hindered alcohols compared to 4-dimethylaminopyridine (DMAP) and other analogs.1)
Because of its high electron-rich character, 1 is also useful as an effective auxiliary ligand for promoting post-Ullmann coupling reactions leading to the construction of C(aryl)-heteroatom bonds.2) It can be applied to the synthesis of triarylamines, which are important hole-transporting materials in many organic optoelectronic devices.
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