6 Art. 3.— Y. Shibata : 



200° was isolated. But the quantity of it was so small that further 

 investigation was impossible. 



The Action of Magnesium Ethyl Iodide 

 on Dimethyl d-Camphorate. 



As the reaction product, an yellowish oil was obtained, the 

 main part of which distilled (I) at 170-172° under 6-7 mm. 

 pressure, or (II) at 176-178° under 10 mm. pressure. It was 

 analysed with the following results: — 



(I) 0-2749 gave 0-7489 CO, and 0-2619 HA C=74-30 ; H==l0-65. 



(II) 0-2362 gave 0-6437 CO., and 0-2257 H,0. = 74-32 ; H = 10-68, 



OuH^A requires = 74-93 ; H = 10-79 per cent. 



OH.,— OH C(0.,H5)„ 



'I I " ' 



Diethylcampholide, 0(CH.j).j , crystallises into 



OH.,— 0(0H3)— CO 

 small plates, melting at 37-38°, soluble in alcohol, ether, petroleum 

 ether, chloroform, benzene, acetone, and carbon bisulphide. 



Tlic action of alcoholic potasli on dicthylcainpholidc: — The substance, 

 dissolved in alcohol, was heated with an excess of alcoholic potash 

 on a water-bath for about twenty hours. When the solution was 

 treated in the same manner as in the preceding case, a browni.sli 

 oil separated out on acidification with hydrochloric acid. On 

 being allowed to stand for a long time, a small portion of the oil 

 solidified, and the solid was collected and left on a porous tile to 

 remove the oil still adhering. It was then dissolved in alcohol, 

 and water was added to the solution drop by drop until turbidity 

 began to appear. On standing, long needle-shaped crystals 

 separated out, which melted between 90-98°. They were dissolved 

 in alkali and reprecipitated witli hydrochloric acid, but no 



