Bis Maleimide Coupling
Bis Maleimide Coupling - Related Videos
09:14
Synthesis of Protein Bioconjugates via Cysteine-maleimide Chemistry
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Cited by 8 •
2016
This protocol details the important steps required for the bioconjugation of a cysteine containing protein to a maleimide, including reagent purification, reaction conditions, bioconjugate purification and bioconjugate characterization.
![Mizoroki-Heck Cross-coupling Reactions Catalyzed by Dichloro{bis[1,1',1''-(phosphinetriyl)tripiperidine]}palladium Under Mild Reaction Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F51444.jpg%3Fv%3D2026-09-01%252007%253A55%253A12&w=750&q=75)
11:44
Mizoroki-Heck Cross-coupling Reactions Catalyzed by Dichloro{bis[1,1',1''-(phosphinetriyl)tripiperidine]}palladium Under Mild Reaction Conditions
0 Views •
Cited by 1 •
2014
Dichloro{bis[1,1',1''-(phosphinetriyl)tripiperidine]}palladium [(P(NC5H10)3)2Pd(Cl)2] (1) is an easy accessible, cheap, and air stable, but highly active Heck catalyst with an excellent functional group tolerance that efficiently operates under mild reaction conditions to give the coupling products in very high yields.
11:42
Solid Phase Synthesis of a Functionalized Bis-Peptide Using "Safety Catch" Methodology
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Cited by 2 •
2012
The efficient solid-phase peptide synthesis of a functionalized bis-peptide trimer utilizing a "safety catch" cleavage procedure from HMBA resin is described.
08:01
Sulfate Separation by Selective Crystallization with a Bis-iminoguanidinium Ligand
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2016
A protocol for in situ aqueous synthesis of a bis(iminoguanidinium) ligand and its utilization in selective separation of sulfate is presented.
22:45
Western Blotting Using the Invitrogen NuPage Novex Bis Tris MiniGels
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Cited by 28 •
2007
This technical article describes a standard western-blotting procedure using the commercially available NuPAGE electrophoresis Mini-Gel system from Invitrogen.
FAQs
The maleimide double bond is electron-deficient, so it readily accepts a thiolate nucleophile. During the Michael addition, the thiolate adds across this carbon-carbon double bond rather than requiring a harsh transformation. Each reaction creates a covalent thioether linkage. This mechanism explains why thiol-functionalized partners can be joined under mild conditions with a defined chemical connection.
The two maleimide groups provide separate reaction sites within one coupling molecule. Each site can engage a thiol-bearing partner, allowing the reagent to connect molecular components through two covalent bridges. Depending on the selected partners, this connectivity supports either attachment between defined biomolecular partners or formation of larger crosslinked structures in polymers and materials.
Predictable reactivity makes it easier to plan which thiol-functionalized components will be connected and what type of structure may result. Because the reaction forms stable thioether linkages under mild conditions, the coupling strategy can support controlled conjugation rather than relying on less defined chemical attachment. This predictability is valuable when preparing engineered biomolecules or tailored macromolecular structures.
A practical workflow begins by selecting the bis maleimide reagent and the thiol-bearing compounds that should be connected. The components are brought together under mild conditions so thiolate nucleophiles can add to the two maleimide double bonds. Reaction at these sites produces thioether-linked products, which may be isolated as conjugates, bridges, or crosslinked structures.
Researchers can select bis maleimide coupling when peptides, proteins, or other thiol-functionalized molecules must be connected through defined covalent linkages. The mild reaction conditions and stable thioether products support chemically tailored biomolecules rather than nonspecific mixtures of attachment types. Such conjugation can be used to prepare engineered molecular constructs whose connectivity is determined by the available thiol partners.
In polymer and materials chemistry, the two reactive groups can connect thiol-bearing macromolecules or molecular building blocks into bridges and networks. Repeated coupling creates chemically linked structures rather than simple mixtures of separate components. This use extends the method beyond biomolecules, enabling the preparation of functional materials and macromolecular architectures whose connectivity depends on the selected thiol-containing partners.