反应 #3445820
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US09388148B2
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: A mixture of methyl 3-cyclobutyl-3-oxo-propanoate (4.3 g, 27.53 mmol) and 2,2-dimethylpropanamidine (2.3 g, 22.10 mmol) was stirred in dry MeOH (50 mL) and NaOMe (5.0 g, 92 mmol) was added in portions at 10° C. The suspension was stirred at room temperature overnight. The reaction mixture was concentrated to roughly half of the volume and filtered. The filtrate was extracted with water and DCM. The combined organic layers were washed with brine, dried over Na2SO4, filtered, and concentrated under reduced pressure. The residue was stirred with acetone and the precipitate collected, dried under vacuum to give the title compound (3.15 g, 15.27 mmol, 66%). The reaction mixture was concentrated to roughly half of the volume filtered The filtrate was extracted with water and DCM The combined organic layers were washed with brine dried over Na2SO4 filtered concentrated under reduced pressure The residue was stirred with acetone the precipitate collected dried under vacuum
来源 ID: ord-20bb3557d79e455498225d7a3167e315