The method of improving the purity of crude anethole from the residue or {HEAD ~ high boiling fractions} from {TAIL ~ the distillation} of crude wood, gum or sulfate turpentine comprising: 
from
The method of improving the purity of crude anethole from the residue or { HEAD ~ high boiling fractions } from { TAIL ~ the distillation } of crude wood , gum or sulfate turpentine comprising :
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH