Allyl bromide → N-Trifluoroacetyl-7-allyloxy-8-bromo-1-isopropyl-2,3,4,5-tetrahydro-1H-3-benzazepine

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Reaction Steps

A solution of N-trifluoroacetyl-8-bromo-7-hydroxy-1-isopropyl-2,3,4,5-tetrahydro-1H-3-benzazepine (0.017 g, 0.045 mmol) in dichloromethane (1 mL) was treated with N′″-tert-butyl-N,N,N′,N′,N″,N″-hexamethylphosphorimidic triamide (0.016 g, 0.068 mmol), allyl bromide (0.011 g, 0.09 mmol) and stirred for 3 hours at 20 C. The product mixture was diluted with 10% aqueous HCl, extracted twice with dichloromethane (20 mL), and concentrated. Flash chromatography (10% EtOAc in hexanes, silica) resulted in 0.011 g of a clear oil. MS calculated for C18H21BrF3NO2+H: 420, observed: 420.

Provenance & Evidence