Chemistry (Weinheim an der Bergstrasse, Germany), 14(1), 65-72 (2007-11-23)
Extending the recently introduced concept of "alkali-metal-mediated manganation" to functionalised arenes, the heteroleptic sodium manganate reagent [(tmeda)Na(tmp)(R)Mn(tmp)] (1; TMEDA=N,N,N',N'-tetramethylethylenediamine, TMP=2,2,6,6-tetramethylpiperidide, R=CH2SiMe3) has been treated with anisole or N,N-diisopropylbenzamide in a 1:1 stoichiometry in hexane. These reactions afforded the crystalline products
2-azaisobenzofurans as intermediates in a convenient annelation of aromatic tertiary amides.
Beak P and Chen C-W.
Tetrahedron Letters, 24(29), 2945-2948 (1983)
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