Triethylamine → N-(3-bromopropyl)acetoacetamide

Diketene (1.22 mL, 15.7 mmol, 1.50 equiv) was added at room temperature to a stirred mixture of 3-bromopropylamine hydrobromide (2.30 g, 10.5 mmol, 1.00 equiv) and triethylamine (1.46 mL, 10.5 mmol, 1.00 equiv) in anhydrous THF (20 mL) under argon, and stirring was continued at room temperature for 1 hour. The solvent was removed and the residue was purified by flash chromatography (SiO2, MeOH—CH2Cl2 0:1 to 1:18) to afford a light yellow oil, 2.10 g (90%), which was characterized spectroscopically.

1. customThe solvent was removed
2. customthe residue was purified by flash chromatography (SiO2, MeOH—CH2Cl2 0:1 to 1:18)
3. customto afford a light yellow oil, 2.10 g (90%), which

ORDレコード

ord-ab1d04208ba942d5ab38c7f9319c154c

出典データセット

uspto-grants-2001_04

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US06211198B1