- 3- and 4-uloses derived from N-acetyl- D -glucosamine: A unique pair of complementary organocatalysts for asymmetric epoxidation of alkenes
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The 4-ulose and the 3-ulose, both derived in two steps from the α-methyl glycoside of N-acetyl-D-glucosamine (GlcNAc), act as organocatalysts in the asymmetric epoxidation of alkenes, with unprecedented complementary enantioselectivity. The best results are found with α,β-unsaturated esters as substrates, with enantiomeric ratios up to 90:10 and 11:89, respectively. Copyright
- Schoeberl, Christof,Jaeger, Volker
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p. 790 - 796
(2012/05/04)
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- Precise structure activity relationships in asymmetric catalysis using carbohydrate scaffolds to allow ready fine tuning: dialkylzinc-aldehyde additions.
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The ready construction of 24 stereochemically and functionally diverse carbohydrate ligand structures from a core D-glucosamine scaffold has allowed the evaluation of broad ranging structure activity relationships in ligand accelerated zincate additions t
- Emmerson, Daniel P G,Villard, Renaud,Mugnaini, Claudia,Batsanov, Andrei,Howard, Judith A K,Hems, William P,Tooze, Robert P,Davis, Benjamin G
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p. 3826 - 3838
(2007/10/03)
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