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Coupling ligand promoted

A common choice of crosslinker for this type of reaction is sulfo-SMCC, which has been used extensively for antibody conjugation (Chapter 20, Section 1.1). A better option for dendrimer conjugation is to use a similar crosslinker design, but one that contains a hydrophilic PEG spacer arm to promote dendrimer hydrophilicity after modification. Derivatization of an amine-dendrimer with a NHS-PEG-maleimide can create an intermediate that is coated with water-soluble PEG spacers. This modification helps to mask any potential for nonspecific interactions that the PAMAM surface may have, while providing terminal thiol-reactive maleimides for coupling ligands (Figure 7.10). [Pg.359]

Like the Stille reaction, unsaturated iodides react fastest, although bromides and triflates can be used. Unsaturated chlorides react very slowly and need high temperatures, although electron-rich phosphine ligands promote their coupling. [Pg.92]

Copper-Catalyzed Ligand Promoted Ullmann-type Coupling Reactions... [Pg.213]

I 9 Copper-Catalyzed Ligand Promoted UHmann-type Coupling Reactions HO, ... [Pg.214]

Meyers Al (1974) Heterocycles in organic synthesis. Wiley-lnterscience, New York Safaei-Ghomi J, Ghasemzadeh MA, Kakavand-Qalenoei A (2012) Cul-nanoparticles-cat-alyzed one-pot synthesis of benzo[6]furans via three-component coupling of aldehydes, amines and alkyne. J Saud Chem Soc. http //dx.doi.Org/10.1016/j.jscs.2012.07.010 Yu M, Lin M, Han C, Zhu L, Li C-J, Yao X (2010) Ligand-promoted reaction on silver nanoparticles phosphine-promoted, silver nanoparticle-catalyzed cyclization of 2-(l-hy-droxy-3-arylprop-2-ynyl)phenols. Tet Lett 51 6722-6725... [Pg.158]

Biphenyl formation by the ligand coupling of triphenylbismuth is promoted by Pd(OAc) [418],... [Pg.87]

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See also in sourсe #XX -- [ Pg.213 , Pg.233 ]



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Ligands ligand promoted couplings

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