1: With (S)-(-)-Indoline-2-carboxylic acid; hydroquinone in dichloromethane; N,N-dimethyl-formamide
T=20°C; asymmetric Diels-Alder reaction; P=6000600 Torr; 20 h;
2: With sodium tetrahydroborate in methanol
optical yield given as percent ee;
Jenner, Gerard; Rimmelin, Jean; Antoni, Francois; Libs, Suzanne; Schleiffer, Elisabeth
Bulletin de la Societe Chimique de France, 1981 , vol. 2, # 1-2 p. 65 - 70
