反応 #5034

反応方程式

6,7,8,9-tetrahydro-7-methyl-1H-pyrrolo[2,3-f]isoquinoline-2,3-dione

α-chloroethylchloroformate

→

6,7,8,9-tetrahydro-1H-pyrrolo[2,3-f]isoquinoline-2,3-dione

溶媒

1,2-dichloroethane

反応条件

後処理

1. 1
   温度to reflux for 1 hour, whereafter it
2. 2
   ろ過filtered
3. 3
   その他The filtrate was evaporated
4. 4
   workup.DISSOLUTIONthe residue dissolved in methanol (10 ml)
5. 5
   温度refluxed for 10 min
6. 6
   その他Evaporation of the solvent
7. 7
   workup.WAITleft the crude title compound as a solid, M.p. 270° C.

実験手順

To an ice cooled stirred suspension of 6,7,8,9-tetrahydro-7-methyl-1H-pyrrolo[2,3-f]isoquinoline-2,3-dione (500 mg) in 1,2-dichloroethane (10 ml) was added α-chloroethylchloroformate (0.25 ml). The mixture was then brought to reflux for 1 hour, whereafter it was cooled to room temperature and filtered. The filtrate was evaporated, the residue dissolved in methanol (10 ml) and refluxed for 10 min. Evaporation of the solvent left the crude title compound as a solid, M.p. 270° C.

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