KONINKLIJKE AKADEMIE VAN WETENSCHAPPEN 
TE AMSTERDAM, 
PROCEEDINGS OF THE MEETING 
of Saturday November 29, 1902. 
EE 
(Translated from: Verslag van de gewone vergadering der Wis- en Natuurkundige 
Afdeeling van Zaterdag 29 November 1902, Dl. XI). 
GOM EE NTS. 
J. J. Branksma: “The intramolecular rearrangement of atoms in halogen acetanilides and its 
velocity”. IL. (Communicated by Prof. C. A. Lopry pr Bruyn), p. 359. 
S. L. van Oss: “Five rotations in S, in equilibrium”. (Communicated by Prof. P. H. Scuoure), 
p- 362. 
J. WeEEDER: “On interpolation based on a supposed condition of minimum.” (Communicated 
by Prof. H. G. van pe SANDE BAKHUYZEN), p. 364. 
The following papers were read: 
Chemistry. — „The intramolecular rearrangement of atoms in halogen 
acetanihdes and its velocity,” Il. By Dr. J. J. Buanksma. 
(Communicated by Prof. C. A. LoBry pr BRUYN). 
(Communicated in the meeting of October 25, 1902). 
In a former communication’) it was shown that the conversion 
of acetylchloranilide in acetic acid solution under the influence of 
hydrochloric acid proceeds like a monomolecular reaction. In continuing 
this research the object was to study the influence of: 
Ist. The dilution of the acetic acid with water. 
2nd. The quantity of added hydrochloric acid. 
3rd, The solvent (besides acetic acid, alcohols ete.). . 
4th Different catalysers (HCI, H Br, H, SO). 
5th. Different groups in the nucleus and their relative positions. 
6. The temperature. 
First of all the influence of the dilution of the acetic acid was 
studied, varying proportions of hydrochloric acid being also added. 
afterwards a few experiments were made in alcoholic solution. 
1) Proc. Royal Acad. Amsterdam. June 29, 1902. 
24 
Proceedings Royal Acad. Amsterdam, Vol. V. 
