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ChemicalBook CAS DataBase List C5E1
6196-58-3

C5E1 synthesis

6synthesis methods
-

Yield:6196-58-3 55%

Reaction Conditions:

Stage #1: ethylene glycolwith sodium at 80;
Stage #2: 1-Bromopentane at 80 - 100; for 4 h;

Steps:

1

Sodium metal (0.6 g, 0.025 mmol) was added to ethylene glycol 1 (5 g, 0.083 mmol) at room temperature and heated at 80 °C. Then, 1-bromopentane 2 (3.7 g, 0.025 mmol) was added to the reaction mixture at 100°C and the reaction mixture was continued to stir for 4 h. The mixture was filtered to remove inorganic materials and diluted with ice water (200 mL), extracted with ethyl acetate (2 x 200 mL). Organic layer was washed with brine solution, dried (Na2SO4) and concentrated to get pure 2-(pentyl oxy) ethan-1-ol 3 (2.2 g, 0.0186 mmol, 55%) as yellow liquid. TLC system: 10 % Methanol in dichloromethane - Rf: 0.5

References:

WO2018/200425,2018,A1 Location in patent:Paragraph 00334

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