Ammonium Chloride → HCID 57801035, compound

Participants

Reaction Steps

5-Bromo-1-pentene (1.5 g) was gently heated with magnesium turnings (1 g) in anhydrous tetrahydrofuran (15 ml) until reaction started. The mixture was left to reflux without further heating to give the Grignard reagent, then allowed to cool to room temperature. Biphenyl-4-carboxylic acid methoxy-methyl amide (4 g) was dissolved in anhydrous tetrahydrofuran (20 ml) and chilled in an ice bath. The Grignard reagent was added dropwise with vigorous stirring. Following addition, the mixture was allowed to warm to room temperature and stirring continued for 2 hours. Saturated NH4Cl solution (50 ml) was added and the mixture extracted with petrol. Drying with Na2SO4 followed by evaporation gave an oil. Column chromatography (petrol:ethyl acetate 5:1) gave the title compound as a white solid (70%). δC (CDCl3, 62.9 MHz): 23.4, 33.3, 37.8, 115.4, 127.3, 127.3, 128.2, 128.7, 129.0, 135.8, 138.1, 139.9, 145.6 and 199.9. δH (CDCl3, 250 MHz): 1.88 (2H, quintet, J 7.32), 2.17 (2H, quintet, J 7.32), 3.00 (2H, t, J 7.32), 5.03 (2H, m), 5.84 (1H, m), 7.62 (2H, d, J 7.9), 7.47 (3H, m), 7.67 (2H, d, J 7.9) and 8.03 (2H, d, J 7.9).

Provenance & Evidence