2010
DOI: 10.2174/157017810793811669
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Asymmetric Phase Transfer Reactions Catalyzed by Chiral Crown Ethers Derived from Monosaccharides

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Cited by 31 publications
(29 citation statements)
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“…A few of them proved to be efficient catalyst in two Michael additions, in a Darzens condensation and in the epoxidation of α,β-enones. It was found that the type of the monosaccharide, the substituents on the sugar unit and on the nitrogen atom of the macroring have had a significant influence on both the yield and the enantioselectivity [5].…”
Section: Enantioselective Reactionsmentioning
confidence: 99%
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“…A few of them proved to be efficient catalyst in two Michael additions, in a Darzens condensation and in the epoxidation of α,β-enones. It was found that the type of the monosaccharide, the substituents on the sugar unit and on the nitrogen atom of the macroring have had a significant influence on both the yield and the enantioselectivity [5].…”
Section: Enantioselective Reactionsmentioning
confidence: 99%
“…There is an optimum length for the hydrocarbon spacer connecting the MeO or Ph 2 P(O) moiety to the nitrogen atom of the azacrown ring. Among the catalysts tested, lariat ether 1e with a three carbon atom spacer [(CH 2 ) 3 -OCH 3 ] and macrocycle 1i with a four carbon atom chain [(CH 2 ) 4 -P(O)Ph 2 ] proved to be the best (90 % ee and 95 % ee, respectively) [5].…”
Section: Enantioselective Reactionsmentioning
confidence: 99%
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