Synthetic Communications p. 1737 - 1743 (2004)
Update date:2022-08-11
Topics:
Li, Jin-Heng
Xie, Ye-Xiang
In water, CO2 was found to promote the palladium-catalyzed cyclotrimerization of alkynes. In the presence of PdCl2, CuCl 2, and CO2, both aryl and alkylalkynes afforded the corresponding cyclotrimerization products regioselectively in high yields. However, tert-butylacetylene bearing a bulk group gave a dimerization product.
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