2-(Phenylmethylene)octanal → 1,3-Diphenyl-2-n-hexyl-2-propen-1-ol

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Reaction Steps

In a 2-liter three-necked flask equipped with a stirring device, a thermometer and a nitrogen substituting device, 13.2 g of magnesium and 300 milliliters of tetrahydrofuran were introduced and stirred violently. Then, a solution of 83.2 g of benzene bromide in 100 milliliters of tetrahydrofuran was added dropwise for 40 minutes. At that time, cooling was carried out with an ice bath if required. After the dropwise addition was ended, stirring was carried out at room temperature for 1 hour, and thereafter 108.2 g of α-n-hexyl cinnamaldehyde was added dropwise. After stirring for one day and one night, the solution was poured in ice water containing dilute hydrochloric acid, and extracted with 1 liter of ethyl acetate. After the solution was washed with an aqueous solution of sodium hydrogencarbonate and water, it was dried with anhydrous magnesium sulfate. After removing the solvent off by a rotary evaporator, 169.6 g of 1,3-diphenyl-2-n-hexyl-2-propen-1-ol was obtained.

Provenance & Evidence