Divergent/convergent synthesis

Divergent-Convergent Synthesis of Glycosylaminoglycan 120 from Glycosyl Donors and Acceptors Ensuing from NPOEs... 

Plenio, H., J. Hermann, and J. Leukel. 1998. Synthesis of soluble 1,3-bridged ferrocene-acetylene polymers and the divergent-convergent synthesis of defined oligomers. Eur J Inorg Chem 2063. 

Fig. 19. (a) Divergent and (b) convergent synthesis of dendritic polyrotaxanes with mechanical branching units... 

Figure 7.6 The divergent and convergent synthesis methods of dendrimer formation.

Keywords Macromolecules m Dendrimers m Fractal Structure m Hyperbranched Polymers m Nanostructure m Divergent Synthesis m Convergent Synthesis m Dendrylation... 

Figure 7. A combination of divergent and convergent synthesis, yielding a dendrimer with pockets in different micro-environments.

Divergent or convergent synthesis of dendrimers which already carry the desired functionality in the branching unit, i.e within the dendrimer skeleton.11 10 11 19 21 221... 

Figure 2. Solution phase synthesis of the oligo(thiophene ethynylene)s by the divergent/convergent doubling approach.

S. Huang, J. M. Tour, Rapid Solid Phase Synthesis of 01igo(l,4-phenyleneethynylene)s by a Divergent/Convergent Tripling Strategy, J. Am Chem. Soc 1999, 121, 4908-4909. 

Scheme 5.26 Divergent-convergent use of NOPEs in oligosaccharide synthesis.

At the center of the dendrimer is the core that represents the first synthetic step in divergent synthesis, or the last step in convergent synthesis. Each concentric shell of branched units is a generation (X), designated (GX), of identical repeat units. Hundreds of chemical repeat units have been reported [3, 4], but our characterization has been focused primarily on poly(amidoamine) (PAMAM), -(CH2CH2CONHCH2CH2N) < [1], or poly(propyleneimine)... 

Huang SL, Tour JM (1999) J Am Chem Soc 121 4908-4909 Rapid solid-phase synthesis of oligo-(l,4-phenyleneethynylene)s by a divergent-convergent tripling strategy... 

Fig. 2. Retro synthetic analysis for the dendritic structures FG, FP and X, Y are respectively interconvertible functional groups Path A is the divergent synthesis Path B is the convergent synthesis stands for the core structure Q stands for the branching repeat unit...

Dendrimers Dendritic macromolecules with repetitive moieties Divergent or convergent synthesis 23,53... 

Gossage, R. A., Munoz-Martinez, E., Frey, H., Burgath, A., Lutz, M., Spek, A. L., Van Koten, G. A novel phenol for use In convergent and divergent dendrimer synthesis access to core functlonallzable trifurcate carbosllane dendrimers-the X-ray crystal structure of [1,3,5-trls 4-(triallylsllyl)phenyl ester benzene]. Chem.- Eur. J. 1999, 5, 2191-2197. 

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