反应详情

4 mL of degassed methanol solution containing 10 mg of RuCl2((R)-3,5-xylylBINAP) ((2R)-BMMBDA), 160 mg of 3-methoxymethylamino-1-(2-thienyl)-1-propanone, 100 mg of potassium tert-butoxide and 10 mL of methanol were provided in a glass autoclave under an argon gas flow. After deaeration and replacement by argon, hydrogen was introduced to a predetermined pressure. The resulting solution was hydrogenated at 20° C. for 12 hours. Upon completion of hydrogenation, the reaction mixture was concentrated to obtain objective compound as an oily product (161 mg, 95.8% by HPLC assay, 95% ee). 1H NMR (400 MHz, CDCl3) δ (ppm)=3.0 (s, 3H), 3.0-3.1 (m, 1H), 4.1 (s, 3H), 4.0-4.1 (m, 3H), 6.1 (dt, J=7.4, 15.4 Hz, 1H), 6.9 (d, J=15.7 Hz, 1H), 7.0 (dd, J=3.7, 5.0 Hz, 1H), 7.1 (d, J=3.4 Hz, 1H).

1. concentrationUpon completion of hydrogenation, the reaction mixture was concentrated
2. customto obtain objective compound as an oily product (161 mg, 95.8% by HPLC assay, 95% ee)