Author/Authors :
Mohri، نويسنده , , Yoshihiro and Sagehashi، نويسنده , , Masayoshi and Yamada، نويسنده , , Taiji and Hattori، نويسنده , , Yasunao and Morimura، نويسنده , , Keiji and Kamo، نويسنده , , Tsunashi and Hirota، نويسنده , , Mitsuru and Makabe، نويسنده , , Hidefumi، نويسنده ,
Abstract :
Stereoselective synthesis of catechin and epicatechin dimers under intermolecular condensation is achieved by an equimolar amount of coupling catalyzed by Yb(OTf)3. The coupled products were successfully converted to procyanidin B1, B2, B3, and B4.
