Phenyltrimethylammonium bromide dibromide → 2-Bromo-1-[3-tert-butyl-5-(2-methoxy-1-methoxymethylethoxy)phenyl]ethanone

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Reaktionsschritte

1-[3-tert-Butyl-5-(2-methoxy-1-methoxymethylethoxy)phenyl]ethanone (O2.072; 1.64 g) was dissolved in methanol/THF (30/30 ml) and admixed while stirring with phenyltrimethylammonium tribromide (2.09 g). The mixture was stirred at RT for 1 h, then diluted with DCM and washed once with 5% sodium thiosulfate solution. The DCM phase was dried over magnesium sulfate, filtered and concentrated. The residue was purified using silica gel (80 g cartridge, n-heptane/MtB ether gradient of 0-30% within 60 min). 890 mg of the title compound were obtained.

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