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

Autor: Motoi Kawatsura, Kousuke Iwakami, Shogo Murakami, Hiroaki Tsuji, Taro Sonehara
Rok vydání: 2019
Předmět:
Zdroj: Tetrahedron Letters. 60:598-601
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2019.01.036
Popis: 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.
Databáze: OpenAIRE