supported by the National Natural Science Foundation of China (21403022,21572226);the Natural Science Foundation of Liaoning Province of China (2015020194)~~
Copper catalyzed asymmetric formal [3+2] cycloaddition of propargylic esters toβ‐keto phospho‐nates for the synthesis of chiral phosphonylated 2,3‐dihydrofurans was developed. By using a bulky and structurally ri...