Palladium-catalyzed [2+2+1] annulation: access to chromone fused cyclopentanones with cyclopropenone as the CO source

Zhu, WQ; Fang, YC; Han, WY; Li, F; Yang, MG; Chen, YZ

Han, WY; Chen, YZ (corresponding author), Zunyi Med Univ, Sch Pharm, Gener Drug Res Ctr Guizhou Prov, Key Lab Biocatalysis & Chiral Drug Synth Guizhou, Zunyi 563006, Guizhou, Peoples R China.; Han, WY; Chen, YZ (corresponding author), Zunyi Med Univ, Key Lab Basic Pharmacol, Minist Educ, Zunyi 563006, Guizhou, Peoples R China.; Han, WY; Chen, YZ (corresponding author), Zunyi Med Univ, Joint Int Res Lab Ethnomed, Minist Educ, Zunyi 563006, Guizhou, Peoples R China.

ORGANIC CHEMISTRY FRONTIERS, 2021; 8 (12): 3082

Abstract

Herein we report a palladium-catalyzed [2 + 2 + 1] annulation among 3-iodochromones, bridged olefins, and cyclopropenone, giving a variety of chromone......

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