Water → HCID 57184026, compound

Participants

Reaction Steps

4 g of (1R)-3,3,5-trimethyl-4-methylene-1-cyclohexanol obtained in Example 2A were dissolved in 50 ml of toluene, about 6 mg of p-toluenesulfonic acid were added and the mixture was refluxed for 45 min. It was then poured into 50 ml of water and extracted twice with 50 ml of ether. The organic phase was separated off, washed with 50 ml of saturated NaHCO3 solution, dried over MgSO4 and freed of solvent under reduced pressure. The residue was chromatographed on 150 g of silica gel with hexane/EA (4:1) to result in 3.7 g of the abovementioned product in the form of pale yellow crystals with a purity of 97% according to GC.

Provenance & Evidence