Towards the stereoselective synthesis of inherently chiral pseudorotaxanes
نویسندگان
چکیده
منابع مشابه
Towards 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...
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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 ...
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ژورنال
عنوان ژورنال: Org. Biomol. Chem.
سال: 2006
ISSN: 1477-0520,1477-0539
DOI: 10.1039/b513562a