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1. Synthesis of trifluoromethyl-group-containing cyclopentadienones by the palladium-catalyzed [2 + 2 + 1] cycloaddition of aryl- and trifluoromethyl-group substituted internal alkynes and carbon monoxide

Author

Motoi Kawatsura, Kousuke Iwakami, Shogo Murakami, Hiroaki Tsuji, and Taro Sonehara

Subjects
Trifluoromethyl, 010405 organic chemistry, Aryl, Organic Chemistry, chemistry.chemical_element, 010402 general chemistry, 01 natural sciences, Biochemistry, Medicinal chemistry, Cycloaddition, 0104 chemical sciences, Catalysis, chemistry.chemical_compound, chemistry, Group (periodic table), Yield (chemistry), Drug Discovery, Palladium, Carbon monoxide
Abstract

We investigated the palladium-catalyzed [2 + 2 + 1] cycloaddition of aryl- and trifluoromethyl-group-substituted internal alkynes and carbon monoxide, and revealed that the PdBr2 effectively catalyzed the intended reaction. The PdBr2-catalyzed reaction smoothly proceeded and provided aryl- and trifluoromethyl-group-containing cyclopentadienone derivatives in up to 92% yield.

Published
2019
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