Hydrochloric Acid → HCID 22490824, compound

Participants

Reaction Steps

Sodium hydride (1.07 g, 26.64 mmol) was rinsed with hexane and suspended in dry N,N-dimethylformamide (80 mL). To the suspension was added ethanethiol (1.9 mL, 26.6 mmol) and stirred at room temperature for 30 min, which resulted in the formation of a clear solution. A solution of 1-(4-bromo-8-isopropyl-3-methoxy-5,5-dimethyl-5,6-dihydronaphthalen-2-yl)-ethanone (Compound A-103,2.6 g, 7.4 mmol) in N,N-dimethylformamide (10 mL) was added to the solution and the mixture was heated at 130° C. for 5 h. The mixture was cooled to room temperature, acidified with 10% HCl and extracted with diethyl ether. The combined ethereal layers were washed with water, brine, dried (Na2SO4), filtered and concentrated in vacuo. The crude residue was purified by flash chromatography (silica gel, 5% ethyl acetate in hexane) to yield the title compound as a brown oil.

Provenance & Evidence