Room-Temperature B(OAc)<sub>3</sub>-Promoted Diels–Alder Reaction of Juglone with Styrenes: Total Syntheses of Tetrangulol and Anhydrolandomycinone
作者:Day-Shin Hsu、Jiun-Yi Huang
DOI:10.1021/jo202448e
日期:2012.3.16
The Diels–Alderreaction of juglone with various styrenes in the presence of 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ) was promoted by B(OAc)3 at room temperature. The reaction proceeded smoothly and gave the products in a good yield and with excellent regioselectivity. This strategy was applied to the total syntheses of tetrangulol and anhydrolandomycinone.