Pentane → HCID 20318253, compound

Participants

Reaction Steps

To a clean, dry, 500 ml, 4-neck round bottom flask equipped with a mechanical stirrer, thermometer, condenser with drying tube and under a nitrogen atmosphere was added a solution of 70 grams (0.253 moles) of n-butyl 4-t-butylazo-4-chlorovalerate (prepared as in Example XX) in 200 ml. of pentane and the solution cooled to 5° C. With rapid stirring 86.6 ml. (0.26 moles) of a 3 molar solution of phenylmagnesium bromide in ether was added from a dropping funnel over 1/2 hour holding the reaction temperature at 10°-15° C with an ice bath. After the addition was complete, the reaction was stirred for an additional 45 minutes at 15° C. Ice chips were then added to the stirred reaction until the excess phenylmagnesium bromide was destroyed. The reaction mixture was then stirred into 200 ml. of 5% HCl until the magnesium salts dissolved. The pentane layer was separated, washed with 5% HCl, water, dried over anhydrous sodium sulfate, filtered and the pentane evaporated to leave 53 grams (66% yield) of product.

Provenance & Evidence