1,2-二甲基八氢吡咯并[3,4-B]吡咯

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 7.25 g (34.2 mmol) of ethyl 2,3-dimethyl-2,7-diazabicyclo[3.3.0]octane-7-carboxylate are heated under reflux overnight with 50 ml of concentrated hydrochloric acid. The mixture is rendered alkaline with potassium carbonate and extracted ten times using 50 ml of chloroform each time, the extracts are dried over potassium carbonate and concnetrated, and the residue is distilled. extracted ten times the extracts are dried over potassium carbonate the residue is distilled

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 7.25 g (34.2 mmol) of ethyl 2,3-dimethyl-2,7-diazabicyclo[3.3.0]octane-7-carboxylate together with 50 ml of concentrated hydrochloric acid are refluxed overnight. The mixture is rendered alkaline using potassium carbonate and extracted ten times using 50 ml portions of chloroform, the extracts are dried over potassium carbonate and concentrated, and the residue is distilled. extracted ten times the extracts are dried over potassium carbonate concentrated the residue is distilled

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 7.25 g (34.2 mmol) of ethyl 2,3-dimethyl-2,7diazabicyclo[3.3.0]octane-7-carboxylate are heated under reflux overnight with 50 ml of concentrated hydrochloric acid. The mixture is rendered alkaline with potassium carbonate and extracted ten times using 50 ml of chloroform each time, the extracts are dried over potassium carbonate and concentrated, and the residue is distilled. extracted ten times the extracts are dried over potassium carbonate concentrated the residue is distilled

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 7.25 g (34.2 mmol) of ethyl 2,3-dimethyl-2,7-diazabicyclo[3.3.0]octane-7-carboxylate together with 50 ml of concentrated hydrochloric acid are refluxed overnight. The mixture is rendered alkaline using potassium carbonate and extracted ten times using 50 ml portions of chloroform, the extracts are dried over potassium carbonate and concentrated, and the residue is distilled. extracted ten times the extracts are dried over potassium carbonate concentrated the residue is distilled

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 7.25 g (34.2 mmol) of ethyl 2,3-dimethyl-2,7-diazabicyclo[3.3.0]octane-7-carboxylate are heated under reflux overnight with 50 ml of concentrated hydrochloric acid. The mixture is rendered alkaline with potassium carbonate and extracted ten times using 50 ml of chloroform each time, the extracts are dried over potassium carbonate and concentrated, and the residue is distilled. extracted ten times the extracts are dried over potassium carbonate concentrated the residue is distilled