Potassium phthalimide

Structural formula
General
Surname	Potassium phthalimide
other names	1,2-benzene dicarboximide potassium salt N -potassium phthalimide Phthalimide potassium
Molecular formula	C 8 H 4 KNO 2
Brief description	light yellow, odorless powder
External identifiers / databases
CAS number 1074-82-4 EC number 214-046-6 ECHA InfoCard 100.012.770 PubChem 3356745 Wikidata Q413572
properties
Molar mass	185.2 g mol −1
Physical state	firmly
density	1.63 g cm −3
Melting point	> 300 ° C (decomposition)
solubility	soluble in water
safety instructions
GHS labeling of hazardous substances no GHS pictograms H and P phrases H: no H-phrases P: no P-phrases
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Potassium phthalimide is the potassium salt of phthalimide .

Extraction and presentation

The reaction of phthalimide with alcoholic potassium hydroxide solution produces potassium phthalimide.

properties

Potassium phthalimide is a flammable light yellow solid that is soluble in water. It decomposes above 300 ° C, producing nitrogen oxides , carbon monoxide and carbon dioxide .

Usage and reactions

Potassium phthalimide is a reagent for the synthesis of primary amines according to the principle of the Gabriel synthesis .

Use of potassium phthalimide in the Gabriel synthesis of a primary amine. R is an organyl radical, X is a halogen atom, e.g. B. chlorine or bromine.

Phthalimide is also required for the synthesis of pesticides (e.g. Folpet ), dyes and anthranilic acid .

Individual evidence

1. ↑ ^{a b c d e f} Entry for CAS no. 1074-82-4 in the GESTIS substance database of the IFA , accessed on July 18, 2011(JavaScript required) .
2. ^ Brockhaus ABC Chemie , VEB FA Brockhaus Verlag Leipzig 1965, p. 1072.