Results 131 to 140 of about 676 (146)
Some of the next articles are maybe not open access.
Synthesis, characterization, and applications of fluorous resorcin[4]arenes
New Journal of Chemistry, 2010Three fluorous resorcin[4]arenes (1a-c) were synthesized and characterized for their potential application in separation science. A crystal structure of 1b confirmed its ring size and conformation. The fluorous resorcin[4]arenes are soluble in hybrid fluorous solvents.
Qianli Chu +6 more
openaire +1 more source
Synthesis and molecular modelling studies of resorcin[4]arene-capped porphyrins.
Organic & biomolecular chemistry, 2003Three new resorcin[4]arene-capped porphyrins (3, 5 and 7) different in the porphyrin skeleton, in the linking arms and in the cavity dimensions, have been synthesised. Molecular modelling calculations explored the conformations and the cavity size of the three compounds and showed that their hydrophobic pockets can accommodate one molecule of water or ...
BOTTA B +9 more
openaire +3 more sources
Photochromic resorcin[4]arenes: stabilization of intramolecular anthracene dimers in solution
Photochemical & Photobiological Sciences, 2009Several resorcin[4]arenes functionalized with two anthracene units on opposite sides of the upper rim of the macrocycle were synthesized. We investigated the potentially photochromic properties of these systems, with the main focus on the intramolecular [4+4] cycloaddition of the anthracenes and its reversibility by thermal ring opening.
Schäfer, Christian +2 more
openaire +2 more sources
Spatially Directional Resorcin[4]arene Cavitand Glycoconjugates for Organic Catalysis
Chemistry – A European Journal, 2016AbstractThe synthesis of novel spatially directional multivalent resorcin[4]arene cavitand glycoconjugates (RCGs) and their ability to catalyze organic reactions is reported. The β‐d‐glucopyranoside moieties on the upper rim of the “bowl”‐shaped resorcin[4]arene cavitand core are capable of multiple hydrogen‐bond interactions resulting in a pseudo ...
Ali A. Husain +2 more
openaire +2 more sources
Selective steroid recognition by a partially bridged resorcin[4]arene cavitand
Chemical Communications, 2005The partially bridged resorcin[4]arene cavitand featuring a cleft-shaped recognition site formed by two anti-quinoxaline bridges and four convergent HO-groups was prepared in three steps and characterised by X-ray crystallography; cavitand was found to be a selective receptor for steroidal substrates in CDCl3, with the best binding observed for ...
CACCIARINI, MARTINA +4 more
openaire +4 more sources
Inherently Chiral Resorcin[4]arenes: A New Concept for Improving the Functionality
Organic Letters, 2011A new reactive postion at the upper rim of inherently chiral resorcin[4]arenes was introduced through cleavage of an up to now unreactive methoxy group through the demethylating reagent 9-I-9-BBN. Conservation of the inherent chirality was warranted through the use of a protecting group at the free phenol group.
Wiegmann, Sebastian, Mattay, Jochen
openaire +3 more sources
Molecular Capsules Derived from Resorcin[4]arenes by Metal-Coordination
2011A short introduction to the fundamental features and recent developments of supramolecular chemistry is presented besides defining scope and limitation of this review article. A brief overview about calix[n]arenes and especially resorcin[4]arenes and their conformationally rigid cavitands is given.
Tobias, Schröder +2 more
openaire +2 more sources
Quinone‐Based, Redox‐Active Resorcin[4]arene Cavitands
Angewandte Chemie International Edition, 2011Pochorovski Igor +5 more
openaire +3 more sources
Tetramethoxy resorcin[4]arene-tetraester derivatives
Journal of Thermal Analysis and Calorimetry, 2014Pramod B. Pansuriya +3 more
openaire +1 more source