8.55029
N-Cyclohexylcarbodiimide,N′-methyl polystyrene
Novabiochem®
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About This Item
Code UNSPSC :
13111023
Nomenclature NACRES :
NA.22
Produits recommandés
Niveau de qualité
Gamme de produits
Novabiochem®
Forme
beads
Capacité de réaction
reaction type: solution phase peptide synthesis
Pertinence de la réaction
reactivity: carboxyl reactive
Fabricant/nom de marque
Novabiochem®
Application(s)
peptide synthesis
Température de stockage
2-8°C
Description générale
N-Cyclohexylcarbodiimide, N-methyl polystyrene [1] is an ideal tool for mediating solution phase coupling reactions. Typically, the amine and carboxylic acid are treated with a 2-3 fold excess of resin in DCM or DMF [2,3]; a slight excess of carboxyl component over amine component is often used to help drive the reaction to completion. As excess acid and urea by-products remain attached to the resin at the end of the reaction, the product can normally be isolated pure by filtration and evaporation of the reaction mixture. Reactions can be accelerated by the addition of auxiliary nucleophiles such as HOBt; these can be removed using polyamine- or TBD-polystyrene. This resin has also been used in conjunction with DMAP to mediate ester formation [4].
Associated Protocols and Technical Articles
Protocols for Loading of Peptide Synthesis Resins
Literature references
[1] G.M Weinshenker, et al. (1988) Org. Synth., Coll. Vol. VI, 951.
[2] Y. Guan, et al. (2000) J. Comb. Chem., 2, 297.
[3] K. Senton, et al. (2003) J. Comb. Chem., 5, 336.
[4] M. Cano, et al. (2002) J. Org. Chem., 67, 129.
Associated Protocols and Technical Articles
Protocols for Loading of Peptide Synthesis Resins
Literature references
[1] G.M Weinshenker, et al. (1988) Org. Synth., Coll. Vol. VI, 951.
[2] Y. Guan, et al. (2000) J. Comb. Chem., 2, 297.
[3] K. Senton, et al. (2003) J. Comb. Chem., 5, 336.
[4] M. Cano, et al. (2002) J. Org. Chem., 67, 129.
Liaison
Replaces: 01-64-0211
Remarque sur l'analyse
Color (visual): slightly beige to brown
Appearance of substance (visual): beads
Loading (determined by HPLC after reaction of Z-Phe-OH with cyclohexylamine): ≥ 1.3 mmol/g
Swelling Volume (in CH₂Cl₂): lot specific result
The polymer matrix is copoly (styrene-2 % DVB), 200 - 400 mesh.
Appearance of substance (visual): beads
Loading (determined by HPLC after reaction of Z-Phe-OH with cyclohexylamine): ≥ 1.3 mmol/g
Swelling Volume (in CH₂Cl₂): lot specific result
The polymer matrix is copoly (styrene-2 % DVB), 200 - 400 mesh.
Informations légales
Novabiochem is a registered trademark of Merck KGaA, Darmstadt, Germany
Code de la classe de stockage
11 - Combustible Solids
Classe de danger pour l'eau (WGK)
WGK 1
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Certificats d'analyse (COA)
Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".
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