(GEN 3) 
(generally a chloride); and from our synthesis the conclusion may 
be drawn that indeed, the chloride (chloroform in this case) is split 
and that the parts are taken up by the double bond (that of ethylene 
perchloride in this case). Then the reaction ceases because hepta- 
chloropropane is a stable compound *). 
As regards the second point there are no indications of intermediate 
products (see also the investigations of Mursenvrkin, who also was 
unable to obtain additive products of benzene-hydrocarbons with 
aluminium chloride Cent. Blatt. 1910, 1. p. 168); the most important 
catalytic action must, therefore, take place during the first stage of 
the reaction viz. the moment that the molecules present come under the 
influence of the catalyst. This may be explained in the most simple 
manner by assuming that aluminium chloride renders the chloroform 
active in such a manner that the molecular parts CHCI, and Cl 
can attach themselves to the double bond of the ethylene perchloride 
also rendered active. 
We have proved in the second place that pentachloroethane also 
readily yields as. heptachloropropane with chloroform and aluminium 
chloride. As C,C],H is split by aluminium chloride, at the boiling 
point of chloroform, into C,Cl, and HCI falso compare Mounryrat 
Bull. [38] 19 p. 179) this condensation may now be explained in a 
very simple manner: pentachloroethane loses C,Cl, and this takes up 
chloroform. This synthesis is interesting beeause we are dealing here 
with the succession of two very simple cases of the reaction of 
Friepet and Crarts (Recueil 29 (1910) p.,92) 
ECLER HOLE cer?) SCHOREN, SC CLH 
In case I the chloride is rendered so active that decomposition 
sets in; in case II the chloride is rendered active but not decomposed. 
The investigation of the ethane chlorides is being continued in 
various directions; the results will be published elsewhere. 
Org. Chem. Lab. Techn. University. 
1) It should be pointed out here that, through these investigations, the proof 
has been furnished that no essential difference exists, in regard to the reaction of 
FRIEDEL and Crarts, between benzene and other unsaturated compounds. 
