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. 2020 Dec 10;60(2):711–715. doi: 10.1002/anie.202012654

Scheme 4.

Scheme 4

Reactions of arynes with TEMPO involving 1,5‐ or 1,4‐HAT to give bisalkoxyamines 6 ad. Reaction conditions: 5 (0.20 mmol, 1.0 equiv), TEMPO (1.0 mmol, 5.0 equiv), CsF (0.60 mmol, 3.0 equiv), 18‐crown‐6 ether (0.60 mmol, 3.0 equiv), and n‐hexane (2.0 mL). [a] Reaction condition: 5 e (1.0 mmol, 1.0 equiv), TEMPO (3.0 mmol, 3.0 equiv), CsF (3.0 mmol, 3.0 equiv), and MeCN (10 mL). Yields represent isolated yields.