1: sodium hydride / dimethylformamide 2: lithium aluminium hydride / diethyl ether / Ambient temperature 3: pyridinium p-toluenesulphonate / H2O; pyridine / Ambient temperature 4: pyridine 5: mercuric chloride-mercuric oxide 6: sodium hydride / dimethylformamide 7: potassium tert-butoxide / dimethylsulfoxide / Ambient temperature View Scheme

1: 6.88 g / NaOMe / methanol / Ambient temperature 2: p-toluenesulphonic acid / acetonitrile / 60 h / 60 °C 3: NaH / tetrahydrofuran View Scheme

1: 26 percent / Hg(CN)2, HgBr2 2: 6.88 g / NaOMe / methanol / Ambient temperature 3: p-toluenesulphonic acid / acetonitrile / 60 h / 60 °C 4: NaH / tetrahydrofuran View Scheme

1: p-toluenesulphonic acid / acetonitrile / 60 h / 60 °C 2: NaH / tetrahydrofuran View Scheme

1: 26 percent / Hg(CN)2, HgBr2 2: 6.88 g / NaOMe / methanol / Ambient temperature 3: p-toluenesulphonic acid / acetonitrile / 60 h / 60 °C 4: NaH / tetrahydrofuran View Scheme

sodium hydride in tetrahydrofuran

hydrogenchloride; 3 A molecular sieve; sodium cyanoborohydride in tetrahydrofuran 0.75 h;