反応 #1744003

反応方程式

3,6,9-Trioxadecyl tosylate

sodium hydride

N-(tert-butoxycarbonyl)-O-benzylhydroxylamine

→

( 14 )

収率 77.3%

N-(tert-Butoxycarbonyl)-N-(3,6,9-trioxadecyl)-O-benzylhydroxylamine

収率 77.3%

溶媒

DMF

DMF

反応条件

後処理

1. 1
   その他N-(tert-Butoxycarbonyl)-N-(3,6,9-trioxadecyl)-O-benzylhydroxylamine (14) was synthesized
2. 2
   workup.WAITwas continued for several minutes
3. 3
   温度After cooling
4. 4
   その他the reaction was quenched with water (100 mL)
5. 5
   抽出extracted with other (4×50 mL)
6. 6
   洗浄The combined organic layers were washed with brine (100 mL)
7. 7
   その他the solvent was removed in vacuo

実験手順

N-(tert-Butoxycarbonyl)-N-(3,6,9-trioxadecyl)-O-benzylhydroxylamine (14) was synthesized by adding sodium hydride (80% oil dispersion, 0.488 g, 16.3 mmol) to N-(tert-butoxycarbonyl)-O-benzylhydroxylamine [Ramasamy, supra] (2.66 g, 11.9 mmol) in dry DMF (20 mL), and stirring was continued for several minutes. 3,6,9-Trioxadecyl tosylate [Schultz et al, supra] (4.93 g, 15.5 mmol) in DMF (3 mL) was added by syringe, and the suspension was heated at 72° C. for 18 hours under nitrogen. After cooling, the reaction was quenched with water (100 mL) and then extracted with other (4×50 mL). The combined organic layers were washed with brine (100 mL) and the solvent was removed in vacuo. Column chromatography with 4% EtOH/CHCl3 produced 3.40 g (77%) of (14) as a liquid: NMR δ 1.50 (s, 9 H), 3.31 (s, 3 H), 3.5-3.7 (m, 12 H), 4.82 (s, 2 H), 7.25-7.41 (m, 5 H). Analysis: (C19H31NO6) C, H, N.

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