Improvements in the Production of Iododerivatives of the Succini- mide and of Substituted Succinimides.
Year: 1893

page_text: Date of Application, 11th Aug., 1893
Complete Specification Left, 11th May, 1894-Accepted, 16th June, 1894
PROVISIONAL SPECIFICATION.
[Communicated from abroad by THE FARBWERKE vormals MEISTER Lucius
AND BRUNING, of Hoechst a Main, in the Empire of Germany, Chemical
Manufacturers.]
Improvements in the Production of Iododerivatives of the Succini-
mide and of Substituted Succinimides.
'
I, OLIVER IMRAY, of No. 28, Southampton Buildings, Chancery Lane, in the
County of London, Chartered Patent Agent, do hereby declare the nature of this
invention to be as follows:-
This invention relates to the production of iodo-derivatives of the succinimide
and of the para-ethoxy- and para-methoxy-phenyl-succinimide, which is effected as
set forth in the following examples.
【CH,-
.CH, – CO.
N CH. – OCH¸), I, KI.
Into a slightly heated solution of 60 parts of pära-ethoxy-phenyl-succinimide in
200 parts of glacial acetic acid is caused to flow a solution of 80 parts of iodine
and 50 parts of potassium iodide in 50 parts of water. On cooling the iodo-
derivative separates in the form of crystals, which by decanting are separated from
the mother lye, washed and dried.
The para-ethoxy-phenyl-succinimide presents itself in the form of short prisms
or rhombic octahedrons which seen by transmitted light have ruby-red colour,
when pulverised they form a red powder and melt at 175° C. with brilliant black
colour. In water and glacial acetic acid the product dissolves easily, in water
sparingly. In aqueous solution it separates into para-ethoxy-phenyl succinimide,
iodine and potassium iodide.
II.
Production of the iodo-derivative of the para-methoxy-phenyl-succinimide.
This derivative is produced in the same way as the corresponding ethyl
compound.
It presents itself in the form of black crystals which seen by transmitted light
are ruby-red and melt at 150° C.
Its properties are the same as those of the ethyl-compound.

page_text: Into a solution of 20 parts of succinimide in 100 parts of glacial acetic acid is
introduced while heating a solution of 25 parts of iodine and 16 parts of potassium
iodide in from 30 to 40 parts of water. On cooling, the indo-compound separates
in the form of large tablets or monoclinic prisms of red-brown color.
The crystals melt at 145° C. and can be recrystallised from alcohol or acetic acid. 5
They are more stable than those previously described.
Dated this 11th day of Angust 1893.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Production of Iododerivatives of the Succini-
mide and of Substituted Succinimides.
: I, OLIVER IMRAY of No. 28 Southampton Buildings, Chancery Lane in the
County of London Chartered Patent Agent, do hereby declare the nature of this
invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :-
This invention relates to the production of iodo-derivatives of the succinimide
and of the para-ethoxy- and para-methoxy-phenyl-succinimide, which is effected as
set forth in the following examples.
I.
Production of the iodo-derivative of the para-ethoxy-phenyl-succinimide.
ход
Into a slightly heated solution of 60 parts of para-ethoxy-phenyl-succinimide in
200 parts of glacial acetic acid is caused to flow a solution of 80 parts of iodine
and 50 parts of potassium iodide in 50 parts of water. On cooling the iodo-
derivative separates in the form of crystals which by decanting are separated from
the mother lye, washed and dried.
The para-ethoxy-phenyl-succinimide presents itself in the form of short prisms
.or rhombic octahedrons which seen by transmitted light have ruby-red colour,
when pulverised they form a red powder and melt at 175° C. with brilliant black
colour. In water and glacial acetic acid the product dissolves easily, in water
sparingly. In aqueous solution it separates into para-ethoxy-phenyl-succinimide,
iodine and potassium iodide.
II.
Production of the iodo-derivative of the para-methoxy-phenyl-succinimide.
This derivative is produced in the same way as the corresponding ethyl
compound. It. presents itself in the form of black crystals which seen by
transmitted light are ruby-red and melt at 150° C.
Its properties are the same as those of the ethyl compound.
"

page_text: Into a solution of 20 parts of succinimide in 100 parts of glacial acetic acid is
introduced while heating a solution of 25 parts of iodine and 16 parts of potassium
iodide in from 30 to 40 parts of water.
On cooling, the iodo compound separates in the form of large tablets or
monoclinic prisms of red-brown colour. The crystals melt at 145° C. and can be
recrystallised from alcohol or acetic acid. They are more stable than those
previously described.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed 1 declare that what I
claim is :-
1. The production of iodo-derivatives of the succinimide and of para-ethoxy- and
para-methoxy-phenyl-succinimide by treating these bodies in acetic solution with
iodine and potassium iodide substantially as described.
2. The iodo-derivatives of the succinimide and of para-ethoxy and para-methoxy-.
phenyl-succinimide produced as above set forth.
DL: 174 & Ma- 1804
ABEL & IMRAY,
Agents for the Applicant.