81535-94-6Relevant academic research and scientific papers
Synthesis and conformational study of a novel macrocyclic chiral(salen) ligand and its uranyl and Mn complexes
Amato, Maria E.,Ballistreri, Francesco P.,Pappalardo, Andrea,Tomaselli, Gaetano A.,Toscano, Rosa M.
experimental part, p. 1442 - 1452 (2010/06/13)
A novel chiral macrocyclic ligand incorporating a chiral salen moiety into a framework containing two biphenyl units was synthesized. Structural properties and conformational aspects of the free ligand and an UO2 complex were studied by using N
Facile synthesis of calix[5]arenes with three different upper rim substituents
No, Kwanghyun,Kwon, Kyoung Mee
, p. 1293 - 1295 (2007/10/03)
Four calix[5]arenes, which have three different substituents at the upper rim of calix, are synthesized by the '3 + 2' fragmentation condensation reaction. An equimolar mixture of p-substituted phenol trimer (BCB) and 2,2'-bishydroxymethyl p-substituted p
SOLID STATE POLYCONDENSATION OF PRECURSORS OF PHENOLIC RESINS
Lamartine, Roger,Perrin, Robert,Vicens, Jacques,Gamet, Daniel,Perrin, Monique,et al.
, p. 219 - 236 (2007/10/02)
Twelve substances derived from phenol or 4-alkylphenol, six of which are precursors of phenolic resins, have been prepared by condensation of the phenol with paraformaldehyde or by further reaction of one of these with the starting phenol.Two cyclic oligomers belonging to the class of calixarenes or cyclophanes have been isolated and characterized.Single crystals of some precursors have been obtained and their crystalline structures have been determined.The thermal decomposition of precursors of phenolic resins has been investigated.Their solid state behaviour and their relative reactivities in acidic and basic conditions have been evaluated.The obtained substances can be considered as important intermediates.They are both sufficiently stable and highly reactive.
Calixarenes. 8. Short, Stepwise Synthesis of p-Phenylcalixarene, p-Phenyl-p-tert-butylcalixarene, and Derived Products
No, Kwang Hyun,Gutsche, C. David
, p. 2713 - 2719 (2007/10/02)
Calixarenes (Schemes I-IV) have been previously obtained by a one-flask process (Zinke synthesis) and by a multistep process (Hayes and Hunter synthesis).The former has the advantage of speed and simplicity but the disadvantage of difficult-to-separate pr
