Fig. 2: Scope of the alkynes and diaryliodonium salts. | Communications Chemistry

Fig. 2: Scope of the alkynes and diaryliodonium salts.

From: Design, development and applications of copper-catalyzed regioselective (4 + 2) annulations between diaryliodonium salts and alkynes

Fig. 2

Reactions were performed on 0.2 mmol scale. Isolated yields were given. The ratio of 3 and 4 was determined by crude 1H NMR. [a]The ratio of 3e and 4e was determined by 1H NMR of the purified product. [b]1.5 equiv. of cyclopropylacetylene was used. [c]1-Phenyl-2-(trimethylsilyl)acetylene was used. [d]0.1 mmol scale.

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