Water → HCID 70393692, compound

Participants

Reaction Steps

A solution of 1 g (0.0045 mol) of (2E,6Z)-3,7,11-trimethyl-2,6,10-dodecatrien-1-ol in 32 ml of 3,4-dihydro-2H-pyran is treated at 0° with 91 mg of p-toluenesulfonic acid. The solution is stirred at the same temperature for 2 hours under argon. After the addition of 100 ml of water the mixture is extracted with ether. The organic phase is washed with sodium carbonate solution. After drying and removing the solvent the residue is chromatographed on silica gel with ether-hexane 1:1. There is obtained tetrahyro-2-[[(2E,6Z)-3,7,11-trimethyl-2,6,10-dodecatrienyl]oxy]-2H-pyran which has the following bands in the IR spectrum: 1669 cm-1, 1448 cm-1, 1377 cm-1, 1115 cm-1, 1078 cm-1, 1019 cm-1.

Provenance & Evidence