Bicarbonate Ion → 1-But-3-enyl-4-cyclohexyl-benzene

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To a stirred mixture of diphenyl-phosphinic acid 4-cyclohexyl-benzyl ester (1 g, 2.56 mmol) and 1.22 ml (7.69 mmol) of allyltrimethylsilane in 12 ml of dry dimethoxy-ethane at 0° C. was added 0.46 ml of trimethylsilyltriflate. The mixture was stirred at 0° C. for 1 h, poured into saturated bicarbonate, extracted with ethyl acetate, washed with water, dried (sodium sulfate) filtered and concentrated. The material was purified by chromatography on silica gel, eluting with ethyl acetate/heptane to provide 0.45 g of the title compound.

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