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1,3,5-Triaryl 2-Pyridylidene: Base-Promoted Generation and Complexation

Kazuhiro Hata, Yasutomo Segawa, and Kenichiro Itami

Chem. Commun. 2012, Accepted Manuscript. DOI: 10.1039/C2CC33184E


We herein report a base-promoted generation of sterically hindered 1,3,5-triaryl 2-pyridylidene from the corresponding pyridinium salt. The thus-generated 2-pyridylidene was trapped by S8 and Me2SAuCl to form 2-pyridinethione and a 2-pyridylidene-gold(I) complex, respectively. Rearrangement of pyridylidene to pyrido[1,2-a]indole indicates high reactivity of the carbene center of 2-pyridylidene.

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