22247-58-1Relevant academic research and scientific papers
Synthesis of Monofunctionalized Calix[5]arenes
Ingenfeld, Bj?rn,Straub, Steffen,Fr?mbgen, Christopher,Lützen, Arne
, p. 676 - 684 (2017/11/16)
Seven OH-free and O -permethylated monofunctionalized calix[5]arenes carrying either additional methyl or tert -butyl groups are prepared following fragment condensation protocols. This strategy proves to be superior to previous approaches. Calix[5]arenes with free OH groups all adopt a cone conformation stabilized by a seam of hydrogen bonds at the lower rim. Post-condensation modifications, i.e., methylation of phenolic OH groups or functional group interconversions can also be achieved. Bulky tert -butyl groups are also found to stabilize the cone conformations of O -methylated compounds. These compounds offer versatile functional groups that make these concave molecules interesting building blocks for the synthesis of more sophisticated molecular architectures.
Amino group containing phenol derivative
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Page/Page column 12, (2010/02/07)
An object of the present invention is to provide a material which resolves the drawbacks associated with polyimide polymers, and yet retains the advantages offered by conventional polyimide polymers. ???An amino group containing phenol derivative of the p
Positive resist composition and photosensitizers
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, (2008/06/13)
A positive photoresist compositions comprising, as a photosensitizer, a quinonediazide sulfonic acid ester of a phenol compound represented by the following formula (I): STR1 wherein Q1, Q2, Q3, Q4, Q5/sup
Synthesis and binding behavior of an artificial receptor based on 'upper rim' functionalized calix[5]arene
Haino, Takeharu,Matsumura, Kazumi,Harano, Tetsuya,Yamada, Kaori,Saijyo, Yoshikazu,Fukazawa, Yoshimasa
, p. 12185 - 12196 (2007/10/03)
A new calix[5]arene possessing two benzoic acid moieties was synthesized as an artificial receptor and its ability of binding to a variety of amine guests was investigated. The structures of the complexes with the mines were proposed by the molecular mechanics calculation using MacroModel V. 4.0.
