interest are the macrocyclic bismalonates, as they show pronounced crystallisability and arrange into columnar motifs in the solid state. They feature distinctive dihedral angles: all ester moieties adopt anti conformations whereas the planes of the carboxy moieties of each malonate residue arrange in an approximately orthogonal fashion. The latter geometry is enforced by the macrocyclic structures, as
the macrocyclicmalonate. A variety of bis-, tris-, tetra-, and hexaadducts have been synthesized to show the scope of this approach. "Exotic" addition patterns such as trans-4,trans-4,trans-4, which has been synthesized and completely characterized for the first time, are also accessible by this method. The regioselectivity is ruled by the even distribution of the strain within the macrocyclic malonates
Large Di- and Heptafullerene Polyelectrolytes Composed of C<sub>60</sub>Building Blocks Having a Highly Symmetrical Hexakisaddition Pattern
作者:Patrick Witte、Frank Hörmann、Andreas Hirsch
DOI:10.1002/chem.200900319
日期:2009.7.27
(types I–III) of very large fullerene‐based polyelectrolytes which can carry up to 60 charges on their periphery. All fullerene moieties incorporated in these macromolecular structures have an octahedral hexakisaddition pattern. Dumbbell‐shaped icosacarboxylate 5 (type I), which can accumulate up to twenty negative charges, is very soluble in methanol as well as in neutral and basic water. On the other hand
The first icosacationic bis(fullerene) whose water solubility is provided by twenty peripheral ammonium groups has a rigid, almost cylindrical shape and was synthesized by connecting two fullerene cores with a chiral cyclo-bis(malonate), followed by the regioselective addition of ten amino-terminated malonates into the octahedral positions of the fullerene moieties and subsequent cleavage of the Boc-protecting groups.
METHODS OF TREATING OXIDATIVE STRESS TO MODULATE REDOX BALANCE, PREVENTING OXIDATIVE STRESS INDUCED CELL DAMAGE AND DEATH
申请人:Redox Balance LLC
公开号:US20210145762A1
公开(公告)日:2021-05-20
Fullerene compounds and formulations are taught as useful in reducing oxidative stress in an organism because of their antioxidant properties and REDOX balance (homeostasis) properties.