- 27- To 39-membered pyridine macrocycles
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A set of 27- to 39-membered pyridine macrocycles 2 and 3 has been synthesized by Williamson ether synthesis or ringclosing metathesis. The pyridines are 2,6-disubstituted to al-low endo interactions. In addition to the length, also the nature of the aliphatic chain was varied: saturated (2) and unsaturated (3).
- Luening, Ulrich,Mak, Ellen,Zindler, Melanie,Hartkopf, Britta,Herges, Rainer
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scheme or table
p. 4932 - 4940
(2010/11/04)
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- Synthesis and characterization of tris-methacrylated 3,4,5- tris[(alkoxy)benzyloxy]benzoate derivatives
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The synthesis of liquid crystalline 3,4,5-tris(11-methacryloylundecyl-1- oxybenzyloxy)benzoic acid, 2-methyl-(1,4,7,10,13-pentaoxacyclopentadecane)- 3,4,5-tris[4-(11-methacryloylundecyl-1-oxy)benzyloxy] benzoate and its 1:1 complex with sodium triflate is described. The observed mesophases were identified, by polarized optical microscopy and contact preparation techniques, to be of hexagonal columnar disordered structure. The amphiphiles form lyotropic columnar phases in concentrated methacrylate solvents, while at low solute contents supramolecular organogels emerge.
- Beginn, Uwe,Zipp, Gabriela,Moeller, Martin
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p. 2016 - 2023
(2007/10/03)
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