Toward Novel Polyacetals by Transacetalation Techniques: Dendrimeric Diacetals Academic Article uri icon

abstract

  • A new approach to polyacetal systems using sequential transacetalation and protection− deprotection techniques was developed for the preparation of macromolecular polyacetals and applied to secure new dendrimers with 2, 4, 8, 10-tetraoxaspiro [5, 5] undecane dendrons from pentaerythritol and polyaldehydes. These novel dendrimers, featuring a 1, 3, 5-benzene-tricarbaldehyde core, viz., the dodecaol (18) and its hexaacetal (19), were prepared, and molecular modeling revealed peculiar dendron convergent structures above the core, due to intramolecular π-stacking interactions, reinforced by H-bonding of multifunctional termini.

publication date

  • March 7, 2002