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We report a mild and efficient Cu(OAc)2‐catalysed protocol for the oxidative C–N cross‐coupling of terminal alkynes and N‐deprotected sulfonimidamides. The reaction leads to hitherto unknown N‐alkynylated sulfonimidamides. Furthermore, we found that the synthesised N‐alkynylated sulfonimidamides could undergo silica‐gel‐mediated hydrolysis to give the corresponding N‐acyl‐sulfonimidamides, as well...
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