J. Walz on the oxydation of Diamylene. 57 
investigation and their closer allied chemical relations may be 
gathered from the following statement of formule. 
Oil of turpentine—Camphene, C,,H, «- 
Camphor =Oxycamphene, C,,H,,0. 
_ Oxycamphor ee OA Oy (Oth i) 
Camphinic a O,,oH,.0,==(0,H,,)00.08 
syeamphinie acid (hydrophor- 
nylic acid), C,,H,,0,—(C,H,,0)CO.OH 
Piveauis acid, ° C, otty, O4—-(CoH...0)C0 08 
Monochlorinated camphor, C.48, “ClO 
Terpendichlorhydrine, C,oHisCl,O0, 
In closing, I acknowledge with pleasure the valuable service 
in connection with the foregoing, of my assistant, Mr. Oscar 
oew 
ee June, 1867. 
Art. X.—On = tegen of Diamylene with Chromic 
3 by J. Watz, Ph.D. 
Ar the instigation of Prof. Erlenmeyer ue Bendel berg who 
proposes to ascertain the relative constitu f Diamylene 
I undertook the oxydation of this substance wet. chromic acid. 
- used amylene which boiled between 35° and 40° C, This 
polymerized rapidly and completely according to the 
fethel Soscrited by Erlenmeyer* and almost the whole of the 
product thus obtained, distilled at 153°-170° C. In order to 
test its purity it was ‘treated with bromine in a narrow tube 
which was surrounded by cold water; the bromine was added 
gradually, every drop added causing a hissing sound and a con- 
siderable evolution of hydrobromic acid. “When the liquid 
had assumed a reddish-brown color it was purified, washed and 
dried according to the usual methods. The product thus ob- 
tained was not Bauer’s bibromid (CoH Bry) t | but the mono- 
bromid of diamylene oor CoHsBr;. is an almost 
colorless oil, heavier than w: er and has a eat but not disa- 
greeable odor of camphor, Tt decomposes and turns brown at 
100° C. It was analyzed with the following results : 
Verhandlungen des naturhistorisch medicin. Vereins, Heidelberg, vol. iti, 
iene 
at sp shovgh the temperature of the liquid gunieg the operation was about 15° 
C., no carbo nization could be observed. Compare: Bauer, Sitzgsberichte der 
Wiener Akademie, 
$ 0=12, O=16 S=32, &e. 
