ISSN:
1434-193X
Keywords:
Dendrimers
;
Fullerenes
;
Macromolecular chemistry
;
Template synthesis
;
Chemistry
;
General Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
---The synthesis and complete characterization of dendritic hexakisadducts 8-13 of C60 with a mixed (1:5, 2:4, 3:3 and 4:2) Th symmetrical addition pattern is described. Pentakis-, tetrakis-, tris- and bisadducts 4-7 of C60 with diethyl malonate addends arranged in an incomplete octahedral addition pattern served as core building blocks. Completion of the pseudo-octahedral architecture was achieved by exhaustive cyclopropanation with first- to third-generation bromomalonate dendra 1-3 consisting of the corresponding Fréchet-type 3,5-dihydroxybenzyl alcohol subunits. This concept allows for the convergent synthesis of globular dendrimers with a variable number of dendritic malonates (1-4) and a high dendron density in good yields. The 1H and 13C NMR spectra reflect the Th symmetrical addition pattern of the products and reveal spatial interactions of inner dendron branches.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
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