258,475. Gammay, H. Feb. 4, 1926. Isoborneol is produced from pinene by converting it into pinene hydrochloride, dechlorinating in known manner and transforming the camphene, without separation from the accompanying oils, into bornyl ester, and saponifying. The isoborneol is separated from the oil by centrifuging, and a further quantity of isoborneol can be obtained from the centrifuged oil by distillation and cooling. An example is given, the camphene formed being converted into isobornyl formate.