反应详情

温度

90 °C

4-Methyl-cyclohex-3-enecarbonyl chloride (S) (0.71 mmol), methyl 5-(3,3-dimethylbut-1-ynyl)-3-(isopropylamino)thiophene-2-carboxylate (80 mg, 0.29 mmol) and potassium phosphate tribasic (152 mg, 0.71 mmol) were suspended in dichloroethane (0.75 mL), sealed with a cap and heated to 90° C. After 16 h, the reaction mixture was cooled and partitioned between ethyl acetate and water. The organic layer was separated and the aqueous extracted again with ethyl acetate. The combined organic layers were dried over sodium sulfate, filtered and concentrated. Flash chromatography (10-35% EtOAc:Hexanes) afforded 59 mg (51% yield) of the desired (S)-methyl 5-(3,3-dimethylbut-1-ynyl)-3-(N-isopropyl-4-methylcyclohex-3-enecarboxamido)thiophene-2-carboxylate as a white foam.

1. customsealed with
2. customa cap
3. temperaturethe reaction mixture was cooled
4. custompartitioned between ethyl acetate and water
5. customThe organic layer was separated
6. extractionthe aqueous extracted again with ethyl acetate
7. dry with materialThe combined organic layers were dried over sodium sulfate
8. filtrationfiltered
9. concentrationconcentrated