Triethylamine → 1-Heptyl-4-isocyanatobenzene

Participants

Reaction Steps

To a degassed solution of 4-heptylbenzoic acid (3.0 g, 13.6 mmol) in anhydrous toluene (30 mL) and Et3N (3 mL, 21.5 mmol), was added diphenyl phosphoryl azide (2 mL, 9.3 mmol) dropwise. After completion of the addition, the reaction mixture was heated to reflux and stirred for 2 hours. The mixture was concentrated to dryness under reduced pressure to give the product, 1-heptyl-4-isocyanatobenzene (79), as an oil, which was used directly in the next reaction without further purification.

Provenance & Evidence