LXIV.—The essential oil of Cinnamomum Oliveri(bail.) or brisbane sassafras

George Watson Hargreaves
1916 Journal of the Chemical Society Transactions  
1895, 11, i, 22) describes Cinnamomum Oliveri as a handsome tree with grey, rough bark, growing in the scrubs on the North Coast Railway, Queensland. The bark contains a layer o,f phylloderma on the outside, and just between the cells of this, oiI-ducts run along the bark. Examination of the Oil from the Bark. The bark was distilled in a current of steam, 71 kilos. giving about 1700 C.C. of oil, which was filtered and dried over calcium chloride. Fractional Distillation of the Oil.-The oil was
more » ... e Oil.-The oil was subjected to fractional distillation under 30 mm. pressure. It was first collected in fractions over loo, and these refractionated, until finally the more important were collected in fractions over lo. It was thus found that the oil (1300 grains) can be roughly divided into four main portions, namely, (I) that boiling below 90° yielding 98 grams, (2) that boiling between 90° and 120° yielding 291 grams, (3) that boiling between 120° a.nd 135O yielding 326 grams, (4) that boiling between 135O and 155O yielding 533 grams. Identification of Pinene, C"H".-The fraction boiling a t 77-78O/30 mm. (n? 1*4655), which constituted roughly 12-15 per cent. of the oil, was identified as pinene, by analysis (Found, C= 88.0; H=11-8. Calc., C=88.2; H=11*8 per cent.), and by the preparation of the nitrosochloride melting a t 108O. Identification of d-Camphor, C1,Hi,O.-From the fraction boiling between 90° and 120°/30 rnm. a white solid separated during distillation, a further quantity being obtaineld on cooling the liquid. This was dried and distilled, wheln it boiled a t 204O. (Found, @= 78.4; H = 10.2. The oxime was prepared and found to melt a t 119O. The white solid was therefore camphor. It had D23 1.030 and n;; 1.5165. Calc., C = 78-9 ; H = 10.5 per cent.) This substance, which was present to the amount of absout 18-20 per c a t . of the oil, was shown t o be dextrorotatory when examined in alcoholic solution. Identification of Safrole, CioH"02.-The fraction boiling between 125O and 130°/30 mm. on cooling gave a white, crystalline deposit which, when collected and fractionally crystallisd, yielded a substance melting at 8O, and having D18 1.09, n: 1.535. (Found, C=73.9; H=6-3. Calc., C=74.07; H=6-17 per cent.)
doi:10.1039/ct9160900751 fatcat:knslazllujcwfbsdkamklgqv2e