Synthesis and chiroptical properties of
β
A. I. Meyers; Thanh Nguyen; Diana Stoianova; N. Sreerama; Robert W. Woody; Axel
π
Article
π
1997
π
John Wiley and Sons
π
English
β 90 KB
π 3 views
By use of an asymmetric Ullmann coupling involving chiral naphthalene oxazolines 1, the title compounds were prepared in good yields and with high diastereoselectivity. Hydrolysis of the binaphthyl oxazolines 2 led to the di-aldehydes 5, which were transformed into the azepine derivative, 6. The lat