反应 #3488417
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openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US05587469
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: A solution of N-(3-aminopropyl)benzylamine (38 g, 231.71 mmoles) in dry tetrahydrofuran (300 mL) was cooled to 5° C. in an ice-alcohol bath. To this cold stirred solution 2-[[(tert-butyoxycarbonyl)oxy]imino]-2-phenylacetonitrile (BOC-ON) (56.58 g, 230 mmoles) in dry tetrahydrofuran (300 mL) was added slowly during a 6 hour period. After the addition of BOC-ON, the reaction mixture was stirred at room temperature under argon for an additional 6 hours. The reaction mixture was evaporated to dryness and the residue was dissolved in ether (750 mL). The ether extract was washed with 5% sodium hydroxide solution (4×100 mL), dried over anhydrous sodium sulfate, and concentrated to dryness. The residue was purified by flash column using a chromatograpay over a silica dichloromethane→methanol gradient. The pure fractions were pooled together and evaporated to give 49.5 g (81%) of product as oil: 1H nmr (deuteriochloroform): δ1.42 (s, 9H, t-Boc), 1.65 (m, 2H, CH2CH2CH2), 2.70 (t, 2H, CH2NHCH2), 3.20 (m, 2H, BocNHCH2), 3.78 (s, 2H, ARCH2), 5.32 (br s, 1H, BocNH), 7.30 (m, 5H, ArH). The reaction mixture was evaporated to dryness the residue was dissolved in ether (750 mL) The ether extract was washed with 5% sodium hydroxide solution (4×100 mL) dried over anhydrous sodium sulfate concentrated to dryness The residue was purified by flash column evaporated
来源 ID: ord-0119e70de88b4240b3afd7960545b401