Water → Beta-Carotene

Participants

Reaction Steps

In a 50-ml round-bottom flask 1.32 g (purity: 40.9%, 0.76 mmole) of 1-phenylsulfonyl-4-chloro-1,18-di(2,6,6-trimethyl-1-cyclohexen-1-yl)-3,7,12,16-tetramethyloctadeca-2,7,9,11,13,15,17-heptaene was reacted with 0.8 g (purity: 85%, 12.1 mmoles) of potassium hydroxide in 15 g of ethanol at 45° C. for 3 hours. Then water and toluene were added and the reaction mixture was separated. The organic layer obtained was washed with water and the solvent was removed therefrom to obtain 1.95 g (purity: 17.2%, 0.62 mmole, yield: 81.6%) of β-carotene.

Provenance & Evidence