Issue 7, 2020

Lipshutz-type bis(amido)argentates for directed ortho argentation

Abstract

Bis(amido)argentate (TMP)2Ag(CN)Li2 (3, TMP-Ag-ate; TMP = 2,2,6,6-tetramethylpiperidido) was designed as a tool for chemoselective aromatic functionalization via unprecedented directed ortho argentation (DoAg). X-Ray crystallographic analysis showed that 3 takes a structure analogous to that of the corresponding Lipshutz cuprate. DoAg with this TMP-Ag-ate afforded multifunctional aromatics in high yields in processes that exhibited high chemoselectivity and compatibility with a wide range of functional groups. These included organometallics- and transition metal-susceptible substituents such as methyl ester, aldehyde, vinyl, iodo, (trifluoromethanesulfonyl)oxy and nitro groups. The arylargentates displayed good reactivity with various electrophiles. Chalcogen (S, Se, and Te) installation and azo coupling reactions also proceeded efficiently.

Graphical abstract: Lipshutz-type bis(amido)argentates for directed ortho argentation

Supplementary files

Article information

Article type
Edge Article
Submitted
30 Nov. 2019
Accepted
02 Janv. 2020
First published
07 Janv. 2020
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2020,11, 1855-1861

Lipshutz-type bis(amido)argentates for directed ortho argentation

N. Tezuka, K. Hirano, A. J. Peel, A. E. H. Wheatley, K. Miyamoto and M. Uchiyama, Chem. Sci., 2020, 11, 1855 DOI: 10.1039/C9SC06060J

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