Asymmetric diels - alder reacrions with
✍
H. Felber; G Kresze; H. Braun; A. Vasella
📂
Article
📅
1984
🏛
Elsevier Science
🌐
French
⚖ 118 KB
The Diels-Alder reaction of 1,3-cyclohexadiene with the a-chloro-a-nitroso ether 2, prepared from mannose via the lactone oxime 1, gives the adduct 3 with l-(S),4-(R) configuration in 69 % chemical yield and z 95 % enantiome& excess.