Journal of the Chemical Society 1907/I. [antikvár]

JOURNAL of THE CHEMICAL SOCIETY. ABSTRACTS OF CHEMICAL PAPERS PUBLISHED IN BRITISH AND FOREIGN JOURNALS. PART I. Organic Chemistry. Action of Nitric Acid on Saturated Hydrocarbons. Nitration of Saturated Hydrocarbons containing two isoPropyl Groups. XIV. & XV. Michael I. Konowaloff {J. Euss. Phys. Chem. Soc., 1906, 38, i, 109—123, 124—14L Compare Abstr., 1905, i, 764).—/3e-Dimethylhexane is best obtained from /J-methyl-propjl bromide. When treated with nitric acid, the substances formed depend on : (1) the temperature; (2) whether the experiment is carried out in sealed tubes or in open vessels j (3) the sp. gr. of the nitric acid employed ; (4) the duration of heating. The mononitro-;8e-dimethylhexanes.—Under the most favourable conditions 83% of the /?-nitro-compound and 17% of a mixture of the a- and y-derivatives were obtained. jS-Nitro-ySe dimethylhexane, NOg-CMeg-iCHgJa-CHMeg, is a colourless liquid, b. p. 200—2017760 mm., D» 0-9396, Df 0-9205, < 1-43055. In an ethereal or benzene solution, sodium reacts violently with it, forming a characteristic metallic compound (J. Russ. Phys. Chem. Soc., 1898, 30, ii, 234 ; 1902, 34, ii, 45). The corresponding amine, formed by reduction with tin and hydrochloric acid, b. p. about 744°(74-4°?)/749 mm., D" 0-7803, Df3 0-7605 (in Ber., 1895, 28, 1854, the same author gives b. p. 1457746-5 mm., 1-41655). The hydrochloride, m. p. 157—160°, the platinichloride, (CgHj^NH2)2,H2PtClg, and the normal sulphate, m. p. about 235°, are described. a-Nitro-fie-dimethylhexane, N02-CH2-CHMe-[CH2]2-CHMe2, VOL. XCII. i. h i'f' I A , ' I;