BUSCADOR RECOLECTA

Digital.CSIC. Repositorio Institucional del CSIC

oai:digital.csic.es:10261/202274

Among halogenated aromatics, iodoarenes are unique in their ability to produce the bench-stable halogen(III) form. Earlier, such iodine(III) centers were shown to enable C−H functionalization ortho to iodine via halogen-centered rearrangement. The broader implications of this phenomenon are explored by testing the extent of an unusual iodane-directed para C−H benzylation, as well as by developing an efficient C−H coupling with sulfonyl-substituted allylic silanes. Through the combination of the one-shot nature of the coupling event and the iodine retention, multisubstituted arenes can be prepared by sequentially engaging up to three aromatic C−H sites. This type of iodine-based iterative synthesis will serve as a tool for the formation of value-added aromatic cores. © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, This work was funded by ICIQ, MINECO (CTQ2013-46705-R, CTQ2017-86936-P and SEV-2013-0319), and Generalitat de Catalunya (2017 SGR 1051). We thank the CELLEX Foundation for a contract to S.I., and COFUND (291787-ICIQ-IPMP) for a fellowship to S.B., Peer reviewed