1.1: thionyl chloride / toluene / 8 h / 80 °C
2.1: 4-(N,N-dimethlyamino)pyridine / dichloromethane / 6 h / 0 °C
3.1: 5 h / 80 °C
4.1: sodium nitrite; hydrogenchloride / water / 0.5 h / 0 °C
4.2: 0 °C
5.1: sodium hydroxide / ethanol; water / 2 h / 20 - 50 °C
View Scheme
1.1: 4-(N,N-dimethlyamino)pyridine / dichloromethane / 6 h / 0 °C
2.1: 5 h / 80 °C
3.1: sodium nitrite; hydrogenchloride / water / 0.5 h / 0 °C
3.2: 0 °C
4.1: sodium hydroxide / ethanol; water / 2 h / 20 - 50 °C
View Scheme
1.1: 5 h / 80 °C
2.1: sodium nitrite; hydrogenchloride / water / 0.5 h / 0 °C
2.2: 0 °C
3.1: sodium hydroxide / ethanol; water / 2 h / 20 - 50 °C
View Scheme
