Lithium Hydroxide → HCID 15840104, compound

Participants

Reaction Steps

A mixture of methyl 3-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthyl)-(3-methyl)-2,3-dihydrobenzofuran-5-carboxylate (510 mg, 135 mmol), sodium hydroxide (0.33 g, 7.9 mmol), and lithium hydroxide (0.33 g, 7.9 mmol) is stirred 5 days at ambient temperature. It is concentrated in vacuo at 40° C. in a rotary evaporator. 10 ml of water and 10 ml of ethyl acetate are added again. The mixture is acidified to pH 1 with a concentrated hydrochloric acid solution. After separation, the organic phase is washed twice with 10 ml of water, dried over magnesium sulphate, and concentrated in vacuo at 40° C. in a rotary evaporator. The solid obtained is washed with heptane.

Provenance & Evidence