Frontispiece: Inherently Chiral Calixarenes: Synthesis and Applications
نویسندگان
چکیده
منابع مشابه
Inherently Chiral Calixarenes: Synthesis, Optical Resolution, Chiral Recognition and Asymmetric Catalysis
Inherently chiral calixarenes, whose chirality is based on the absence of a planar symmetry or an inversion center in the molecules as a whole through the asymmetric array of several achiral groups upon the three-dimensional calix-skeletons, are challenging and attractive chiral molecules, because of their potential in supramolecular chemistry. The synthesis and optical resolution of all variet...
متن کاملTowards the stereoselective synthesis of inherently chiral pseudorotaxanes.
Herein is reported an investigation towards the stereoselective synthesis of inherently chiral pseudorotaxanes. Chiral ammonium threads were readily prepared in five steps from racemic or enantiopure (M or P) salts of di-n-propyl-1,13-dimethoxyquinacridinium cation. Their self-assembly with DB24C8 or disymmetrically oriented DB24C8F6 rings formed pseudorotaxanes as shown by 1H and 19F NMR spect...
متن کاملCorrection: Inherently chiral calix[4]arenes via oxazoline directed ortholithiation: synthesis and probe of chiral space
[This corrects the article DOI: 10.3762/bjoc.10.291.].
متن کاملInherently chiral calix[4]arenes via oxazoline directed ortholithiation: synthesis and probe of chiral space
The diastereoselective oxazoline-directed lithiation of calix[4]arenes is reported with diastereoselective ratios of greater than 100:1 in some instances. Notably, it has been found that the opposite diastereomer can be accessed via this approach merely through the choice of an alkyllithium reagent. The inherently chiral oxazoline calix[4]arenes have also been preliminarily examined as ligands ...
متن کاملCalixarenes and Their Biomimetic Applications
The synthetic models for the structures, spectroscopic properties and catalytic activities of metalloprotein active sites have been reviewed. Calixarenes were used as new biomimetic catalysts because of their advantage of providing preorganiiation of the catalytic group, which can bind the substrate dynamically that results in fast turnover and fast release of the products. Functional and struc...
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ژورنال
عنوان ژورنال: Chemistry - A European Journal
سال: 2018
ISSN: 0947-6539
DOI: 10.1002/chem.201880861