Reaktion #158199

Reaktionsgleichung

p-ethyl phenol

LiH

THF

→

oil

Ausbeute 93.0%

3-phenylpropyl 4-ethyl phenyl ether

Ausbeute 93.0%

Reaktionsbedingungen

Aufarbeitung

1. 1
   Temperaturthe reaction mixture was heated at 65° C. for 8 h
2. 2
   WaschenThe reaction mixture was washed very carefully with cold water
3. 3
   Extraktionextracted in EtOAc
4. 4
   Trocknendried over sodium sulfate
5. 5
   SonstigeThe organic layer was evaporated
6. 6
   Sonstigethe crude gummy material was purified by flash chromatography

Vorschrift

To a suspension of LiH (0.005 g, 0.6 mmol) in THF was added p-ethyl phenol (0.08 g, 0.68 mmol) very slowly at 0° C. After 30 min of stirring at room temperature, the sulfonate ester, 2a (0.075 g, 0.17 mmol) was added to it and the reaction mixture was heated at 65° C. for 8 h. The reaction mixture was washed very carefully with cold water and extracted in EtOAc and dried over sodium sulfate. The organic layer was evaporated and the crude gummy material was purified by flash chromatography giving 0.038 g (93%) of an oil. 1H NMR (400 MHz, CDCl3) δ 7.31-7.18 (m, 5H), 7.13-7.09 (m, 2H), 6.85-6.81 (m, 2H), 3.94 (t, J=6.2 Hz, 2H), 2.84 (t, J=7.6 Hz, 2H), 2.58 (q, J=7.5, 2H), 2.13-2.03 (m, 2H), 1.21 (t, J=7.5 Hz, 3H); 13CNMR (100.75 MHz, CDCl3) 141.8, 130.6, 128.9, 128.7, 128.6, 126.1, 114.6, 67.1, 32.4, 31.1, 28.2, 16.1; HRMS (EI) [M]+: calcd for C17H20O 240.1514, found 240.1510.

Quelle