Allyl bromide → HCID 10750085, compound

Participants

Reaction Steps

n-Butyl lithium (0.16 mole of 1.6 M in hexane) was added under a nitrogen atmosphere to dry tetrahydrofuran (100 ml.) which was cooled in a CO2 -acetone bath. This was followed by the successive dropwise additions during 10 minutes of solutions in tetrahydrofuran (10 ml. each) of N-isopropylcyclohexylamine (22.6 g., 0.160 mole) and p-methoxyphenylacetonitrile (21.2 g., 0.144 mole). The mixture was stirred in the cold for 10 minutes when allyl bromide (24.2 g., 0.20 mole) was added dropwise during 10 minutes. Stirring was continued in the cold for 15 minutes and then at ambient temperature for 1.5 hours. The solution was diluted with diethyl ether and washed successively with 4% hydrochloric acid (2 × 100 ml.) H2O and brine. The ethereal solution was dried (Na2SO4), concentrated, and the residue distilled to give 24.2 g. (89% yield) of the nitrile, b.p. 99°-114° (0.1 mm.).

Provenance & Evidence