‘ae mabtonnde CyottuBriOs vee Pp. ‘aa. to ‘ASS * 
methods, as we mentioned Sou the original paper 
is pee 
Weted. The alcohol is ape off and in the rede: atter addition pan r 
bromine is thrown down by silver Sipe ti On treatment witht, ie 
a 
(1) Monobromide (Il) Buchu camphor (Il) Probable formula (Iv): Probable formula 
from buchu camphor acc. to Semmler. of monobromide acc. — of dibromide CoHtuBrO 
acc. to Cusmano. to Wallach. cape of m. p. ort uy 
GH. rae ON GHG Nae 
(i: SCOH (\ on 
[OH one 
C;H, C3H; | ed s ey oe 
(V) Probable formula Ce . 
of acid CyoH 905. 
which with pulegenone (VI) may be assumed. ane course of this reaction is n : 
clear from the above formule. / Vee 
The character of the acid CioH2O¢ as an aldehydo ad seems s be 
by the fact that the acid does not manifest reducing qualities to Sas an 
might be expected from a body of the formula V. eae 
Wallach then undertook a series of test experiments in ‘order: to seit het! 
the reaction discovered in the interaction of the bromine derivatives of the 
CioHisO2 from menthone might be applied to analogous compounds» of tt 
CaAlensO2.. In fact, the author succeeded in obtaining ee the body Cr 
to bie. method of baiminalae: Excess of bromine, when | Caen ek 
C,HioO. in ethereal solution, yielded a tribromide, m. p. 145 to 116%) | 
reduction with zinc and glacial acetic acid the original body CrH,0O 
On treatment. with but 1 molecule of bromine, | a broods of ee 
, ! 
1) Comp. Wallach, Berl. Berichte 14 (1881), 753. a 
