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Rh-Catalyzed Ortho C–H Alkynylation of Aromatic Aldehydes

The Rh(III)-catalyzed ortho-alkynylation of benzaldehydes is enabled by the transient formation of an imine as a directing group. A broad scope of substrates was obtained under mild reaction conditions, granting access to mono- and dialkynylated products. The functionalization of readily available building blocks allowed the development of modular syntheses of dibenzopentalenes, isoquinolines, indoles, and indolines.

Tan, E.; Nannini, L. J.; Stoica, O.; Echavarren, A. M.

Org. Lett. 2021, 23 (4), 1263–1268
DOI: 10.1021/acs.orglett.0c04243

Associated ICIQ research group/s:

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