106750-84-9Relevant academic research and scientific papers
Synthesis of calixarene-capped carbosilane dendrimers
Lambert, Joseph B.,Kang, Seung-Hyun,Kuangbiao, Ma.,Liu, Chunqing,Condie, Allison G.
supporting information; experimental part, p. 2527 - 2532 (2009/09/25)
A new class of polycalix[4]arene hosts has been constructed based on a carbosilane dendrimer architecture, in which each dendritic branch terminates with a calix[4]arene entity. This study reports the synthesis and characterization of the zeroth generatio
CALIXARENES 12 THE SYNTESIS OF FUNCTIONALIZED CALIXARENES
Gutsche, C. David,Lin, Lee-Gin
, p. 1633 - 1640 (2007/10/02)
Procedures are described for the removal of the p-t-butyl groups from p-t-butylcalixarene, p-t-butylcalixarene, and p-t-butylcalixarene and the introduction of functional groups in their place.Although attempts to functionalize the p-positions of the calixarenes have generally failed, the corresponding methyl ethers are amenable to facile acetylation to provide syntheses of the p-acetyl-, p-carboxy-, and p-carbomethoxycalixarenes and calixarenes.Acetylation and benzoylation of calixarene and calixarene occur at the phenolic oxygens rather than the p-positions, leading under most reaction conditions to the completely O-substituted product.Calixarene reacts with benzoyl chloride in the presence of pyridine, however, to yield the tribenzoate.Conversion of the tribenzoate to the corresponding tribenzoyloxy monoallyl ether followed by a Claisen rearrangement and hydrolysis yields monoallylcalixarene, a compound of particular interest because of its potential for the synthesis of calixarenes containing a single substituent on the "upper rim".
