1-Chloro-4-nitrobenzene → Methyl 5-chloro-2-nitrobenzeneacetate

関与物質

反応手順

To a solution of 1.576 g (10 mmol) of 4-chloronitrobenzene and 1.68 mL (10.22 mmol) of carbomethyoxymethyltrimethylsilane in anhydrous THF was added 2.751 g (10 mmol) of TASF in 5 mL of acetonitrile at -78° C. The mixture was stirred for 7 hrs at that temperature, and 0.50 mL (9.70 mmol) of bromine was added dropwise. Stirring was continued for 1 hr, and saturated sodium bisulfite was added. The product was extracted into ether and isolated by chromatography on silica using 30% ether/hexane as solvent. The yield was 1.15 g (50%) product, which was an oil. The product was analyzed by infrared spectroscopy and nuclear magnetic resonance spectroscopy.

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