[C:1]1([N:7]2[CH2:16][CH2:15][C:14]3[C:9](=[CH:10][CH:11]=[CH:12][CH:13]=3)[CH2:8]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C-:17]#[N:18].[Na+].O=O.C(=O)(O)[O-].[Na+]>CO.C(O)(=O)C>[C:17]([CH:8]1[C:9]2[C:14](=[CH:13][CH:12]=[CH:11][CH:10]=2)[CH2:15][CH2:16][N:7]1[C:1]1[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1)#[N:18]N-phenyl-1,2,3,4-tetrahydroisoquinoline (1 mmol), RuCl3-nH2O (0.05 mmol) and sodium cyanide (1.2 mmol) were charged into a 25-ml side-arm flask, the interior of the reacting container was replaced by oxygen, and an oxygen balloon was attached to supply oxygen at 1 atm. Then, 1.7 ml of a mixed solvent of methanol-acetic acid (volume ratio 3/1) was added thereto at room temperature. Reaction was effected by stirring the mixed liquid at 60° C. for 4 hours. After the reaction mixture liquid was made alkaline with the addition of saturated sodium bicarbonate aqueous solution, the mixture was extracted with 10 ml ethyl acetate once and with 5 ml ethyl acetate twice. The extracted liquid thus obtained was washed with saturated saline solution, and dried over sodium sulfate, thereby obtaining an ethyl acetate solution of 1-cyano-N-phenyl-1,2,3,4-tetrahydroisoquinoline. After this solution was concentrated under reduced pressure, the mixture was analyzed by a 1H NMR internal standard method, which revealed the conversion rate of N-phenyl-1,2,3,4-tetrahydroisoquinoline being 91% with a yield of 1-cyano-N-phenyl-1,2,3,4-tetrahydroisoquinoline being 79% (vs. N-phenyl-1,2,3,4-tetrahydroisoquinoline). By using silica gel chromatography, 1-cyano-N-phenyl-1,2,3,4-tetrahydroisoquinoline was isolated at a yield of 76%.
불러오는 중…
