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maleimide

Structure via PubChem · Public domain (PubChem)

EntityQ6743002· pop 13· linked from 76 articles

Also known as maleic imide

Maleimide is a chemical compound with the formula H2C2(CO)2NH (see diagram). This unsaturated imide is an important building block in organic synthesis. The name is a contraction of maleic acid and imide, the -C(O)NHC(O)- functional group. Maleimides are also a class of derivatives of the parent maleimide where the NH group is replaced with alkyl or aryl groups such as a methyl or phenyl, respectively. The substituent can also be a small molecule (such as biotin, a fluorescent dye, an oligosaccharide, or a nucleic acid), a reactive group, or a synthetic polymer such as polyethylene glycol. Hum

Chemical data

Formula
C4H3NO2
Molecular weight
97.07 g/mol
IUPAC name
pyrrole-2,5-dione
SMILES
C1=CC(=O)NC1=O
InChIKey
PEEHTFAAVSWFBL-UHFFFAOYSA-N
XLogP
-0.3
Polar surface area
46.2 Ų
H-bond donors
1
H-bond acceptors
2
Formal charge
0

via PubChem

Drug data · ChEMBL

Molecule type
Small molecule

via ChEMBL · EBI

Research

16,146 papers

via PubMed

Wikidata facts

Mass
97.016378
Show 5 more facts
topic's main category
Category:Maleimides
chemical formula
C₄H₃NO₂
canonical SMILES
C1=CC(=O)NC1=O
Commons category
Maleimides
melting point
92
Sources (2)

via Wikidata · CC0

~6 min read

Encyclopedic overview

7 sections
Contents
  • Reactions
  • Natural maleimides
  • Biotechnology and pharmaceutical applications
  • Technological applications
  • See also
  • References
  • External links

Maleimide is a chemical compound with the formula H2C2(CO)2NH (see diagram). This unsaturated imide is an important building block in organic synthesis. The name is a contraction of maleic acid and imide, the -C(O)NHC(O)- functional group. Maleimides are also a class of derivatives of the parent maleimide where the NH group is replaced with alkyl or aryl groups such as a methyl or phenyl, respectively. The substituent can also be a small molecule (such as biotin, a fluorescent dye, an oligosaccharide, or a nucleic acid), a reactive group, or a synthetic polymer such as polyethylene glycol. Human hemoglobin chemically modified with maleimide-polyethylene glycol is a blood substitute called MP4.

==Reactions== Many analogues of maleimide are prepared by treating maleic anhydride with amines followed by dehydration.

Excerpted from Wikipedia’s “maleimide” article, available under the CC BY-SA 4.0 licence.