Water → HCID 12945490、化合物
反応式
[CH3:1][N:2]1[CH2:7][CH2:6][CH:5]2[C:8](=[O:16])[C:9]3[CH:15]=[CH:14][CH:13]=[CH:12][C:10]=3[S:11][CH:4]2[CH2:3]1.[C:17]1([Li])[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1.O>CCOCC>[CH3:1][N:2]1[CH2:7][CH2:6][CH:5]2[C:8]([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)([OH:16])[C:9]3[CH:15]=[CH:14][CH:13]=[CH:12][C:10]=3[S:11][CH:4]2[CH2:3]1参加物
5
実験手順
40 g of 1,2,3,4,4a,10a-hexahydro-2-methyl-5H-[1]-benzothiopyrano[2,3-c]pyridin-5-one were dissolved in 2 liters of dry ether and the solution obtaining was cooled to 5° C. in an ice bath while 220 ml (2 moles) of phenyl lithium were added dropwise thereto over 30 minutes with the temperature held below 0° C. When the addition was complete, the ice bath was removed and the solution thus obtained was stirred at room temperature for 30 minutes. 3 liters of water were added dropwise thereto and the resultant suspension was stirred vigorously for 2 hours and then was filtered. The product was washed with water and ether and was dried to obtain 20.5 g of 2-methyl-5-phenyl-1,3,4,4a,5,10a-hexahydro-2H[1]benzothiopyrano[2,3-c]pyridin-5-ol (37% yield) melting at 176°-181° C.