1300605-96-2Relevant academic research and scientific papers
Cascade reaction of β,γ-unsaturated α-ketoesters with phenols in trityl chloride/TFA system. Highly selective synthesis of 4-aryl-2H-chromenes and their applications
Wu, Yan-Chao,Li, Hui-Jing,Liu, Li,Liu, Zhe,Wang, Dong,Chen, Yong-Jun
, p. 2868 - 2877 (2011)
The treatment of β,γ-unsaturated α-ketoesters with phenols in the presence of trityl chloride and 4 A molecular sieves in refluxing trifluoroacetic acid afforded 4-aryl-2H-chromenes in high yields, in which a reverse of the regiochemistry of Jorgensen-Rut
