Fluorous Mixture Synthesis of Asymmetric Dendrimers
نویسندگان
چکیده
منابع مشابه
Fluorous Mixture Synthesis (FMS) of Enantiomers, Diastereomers, and Compound Libraries.
Fluorous mixture synthesis (FMS) is a newly developed highly-efficient solution-phase technology. A set of substrates attached to homologous fluorous tags is mixed and taken through a sequence of organic reactions. The final mixtures are demixed by fluorous HPLC and detagged to give individually pure final products. Applications of FMS for the preparation of 2 enantiomers of pyridovericin, 16 d...
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All 16 stereoisomers of the sex pheromone of pine sawfly (3,7,11-trimethylundecanol propanoate ester) have been synthesized on a 10- to 20-mg scale by a split-parallel fluorous mixture-synthesis approach. Spectral data obtained for all 32 compounds (16 alcohols and the corresponding propionates) matched well with published data, thereby validating the fluorous-tag encoding of diastereoisomers. ...
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Recovery and purification difficulties can limit the yield and utility of otherwise successful organic synthesis strategies. A "fluorous synthesis" approach is outlined in which organic molecules are rendered soluble in fluorocarbon solvents by attachment of a suitable fluorocarbon group. Fluorocarbon solvents are usually immiscible in organic solutions, and fluorous molecules partition out of ...
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A copper-catalyzed asymmetric α-hydrophosphonylation of isatins with a novel fluorous bis(oxazoline) as a ligand is presented. The corresponding chiral α(1)-oxindole-α-hydroxyphosphonates were obtained in 30-91% yield with enantioselectivities up to 92%. The fluorous ligand can be easily recovered and reused at least 3 times without a significant loss in its activity.
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ژورنال
عنوان ژورنال: The Journal of Organic Chemistry
سال: 2010
ISSN: 0022-3263,1520-6904
DOI: 10.1021/jo100102a