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. 2022 Mar 29;61(22):e202202187. doi: 10.1002/anie.202202187

Figure 3.

Figure 3

A) Chemical synthetic pathway for preparation of adamantyl‐enolether‐tin 4. B) Stille cross‐coupling reaction of meta‐bromo phenol (5a) with reagent 4, followed by oxidation with singlet oxygen to form Schapp's 1,2‐dioxetane.