Diethyl Ether → HCID 22327781, compound

Temperature

0 °C

To 160 ml (120 mmol) of a THF solution of phenylmagnesium chloride, a solution of 8.38 ml (100 mmol) of-2-cyclopentenone in 70 ml of THF was dropwise added with ice cooling. The mixture was stirred at 0° C. for 1 hour and then further stirred at room temperature for 1 hour. Then, 200 ml of an ammonium chloride saturated aqueous solution was added. To the reaction solution, diethyl ether was added to perform extraction. The resulting ether solution was dried over magnesium sulfate, and the solvent was distilled off to obtain of a crude product of phenylcyclopentenol as a gold liquid (17.5 g). In a glass tube oven, 6 g of the crude product was placed, and the product was heated at 180 to 190° C. for 1 hour at atmospheric pressure, then cooled to room temperature and slowly heated (finally) to 195° C. under reduced pressure (1 to 4 mmHg). As a result, 2.5 g of a white crystal was sublimed (51.3%).

1. stirringfurther stirred at room temperature for 1 hour
2. extractionextraction
3. dry with materialThe resulting ether solution was dried over magnesium sulfate
4. distillationthe solvent was distilled off

ORD record

ord-56e87febbe7640b19cbe7b0ee67a0742

Source dataset

uspto-grants-2008_11

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07449533B2