Unexpected Pd-catalyzed coupling, propargyl-allenyl isomerization and alder-ene reaction: facile synthesis of some not readily available 2,3-dihydrofuran derivatives.
An interesting sequential reaction involving Pd-catalyzed coupling, propargyl-allenyl isomerization, and Alder-ene cycloaddition is reported, providing a facile synthesis of some not readily available 2,3-dihydrofurans from electron-deficient vinyl or aromatic halides and 1-aryl-prop-2-ynyl 3'-methylbut-2'-enyl ethers.
Department of Chemistry, Zhejiang University, Xixi Campus, Hangzhou 310028, PR China.
Ruwei
R
Shen
Shugao
S
Zhu
Xian
X
Huang