478487-84-2

Upstream product

• 29654-55-5 5-(hydroxymethyl)benzene-1,3-diol 
• 1592-20-7 4-Vinylbenzyl chloride 
• 4422-95-1 1,3,5-benzene tris(carbonyl chloride) 
• 304014-53-7 3,5-bis(p-vinylphenylmethyloxy)benzyl alcohol 

Relevant academic research and scientific papers

Polymer immobilization of bis(oxazoline) ligands using dendrimers as cross-linkers

Homopolymers of bis(oxazoline) ligands can be used to prepare efficient catalysts for cyclopropanation reactions. However, the low accessibility to most bis(oxazoline) moieties leads to a low copper loading. As a consequence, the transmission of chiral information from the complexed polymer is not very efficient and only a few chiral cyclopropane molecules are obtained from each molecule of chiral ligand. The use of suitable dendrimers as cross-linkers in the polymerization process allows better copper functionalization. As a consequence the productivity of chiral cyclopropanes per molecule of chiral ligand greatly increases, which improves the ligand economy and the chirality transfer.

Synthesis of periphery-functionalized dendritic polyethers

New dendritic polyethers with bromo-, hydroxy- and vinyl-end groups have been synthesized by a convergent strategy. Planar, 1,3,5- trischlorocarbonylbenzene and 1,3,5-trihydroxybenzene, and tetrahedral, tetrakis(p-hydroxyphenyl)methane, cores have been used.