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528218

Sigma-Aldrich

N-Chlorophthalimide

96%

Synonym(s):

2-Chloro-1H-isoindole-1,3(2H)-dione, 2-Chloro-2,3-dihydro-1H-isoindole-1,3-dione, 2-Chloroisoindole-1,3-dione, 2-Chloroisoindoline-1,3-dione, Phthalimide chloride, Phthalimidoyl chloride

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About This Item

Empirical Formula (Hill Notation):
C8H4ClNO2
CAS Number:
3481-09-2
Molecular Weight:
181.58
EC Number:
222-459-8
MDL number:
MFCD00023027
UNSPSC Code:
12352100
PubChem Substance ID:
24877568
NACRES:
NA.22

Assay

96%

mp

188-198 °C (lit.)

SMILES string

ClN1C(=O)c2ccccc2C1=O

InChI

1S/C8H4ClNO2/c9-10-7(11)5-3-1-2-4-6(5)8(10)12/h1-4H

InChI key

WDRFYIPWHMGQPN-UHFFFAOYSA-N

Related Categories

General description

N-Chlorophthalimide in anhydrous acetic acid serves as a useful oxidizing reagent for use in various direct titrimetric analyses. N-Chlorophthalimide can be synthesized by reacting phthalimide, t-butyl hypochlorite, water and t-butyl alcohol. It participates in the synthesis of 2-amino-3-benzoyl-α-(methylthio)phenylacetamide.

Application

N-Chlorophthalimide may be employed in the synthesis of:
  • α-amino acetal
  • α-amino nitro compounds
  • vicinal diamine
  • α,β-unsaturated vicinal haloamino nitro compound
It may also be used as a chlorination reagent for the synthesis of 3-(methylthio)oxindoles.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Tertiary Butyl Hypochlorite as as N-Chlorinating Agent.
Zimmer H and Audrieth LF.
Journal of the American Chemical Society, 76(14), 3856-3857 (1954)
Aminochlorination reaction with N-chlorophthalimide as a new nitrogen/chlorine source resulting in a-amino derivatives.
Qian Y, et al.
Tetrahedron, 68(31), 6198-6203 (2012)
N-Chlorophthalimide as a mild and efficient chlorination reagent in the Gassman ortho alkylation of aromatic amines. Synthesis of 3-(methylthio) oxindoles.
Cybulski M, et al.
Tetrahedron Letters, 55(40), 5423-5425 (2014)
Development and a practical synthesis of nepafenac intermediate via modified Gassman reaction.
Cybulski M, et al.
Letters in Organic Chemistry, 9(7), 461-464 (2012)
N Jayasree et al.
Talanta, 32(11), 1067-1068 (1985-11-01)
A stable new oxidimetric titrant, N-chlorophthalimide in anhydrous acetic acid, is proposed for direct titrations of a variety of simple and complex reductants such as As(III), Sb(III), Fe(II), ferrocyanide, iodide, ascorbic acid, hydroquinone, hydrazine, phenylhydrazine, benzhydrazide, isonicotinic acid hydrazide, semicarbazide
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