27593-40-4Relevant articles and documents
Highly enantioselective bioinspired epoxidation of electron-deficient olefins with H2O2 on aminopyridine mn catalysts
Ottenbacher, Roman V.,Samsonenko, Denis G.,Talsi, Evgenii P.,Bryliakov, Konstantin P.
, p. 1599 - 1606 (2014/05/20)
The asymmetric epoxidation of various electron-deficient olefins with H2O2 in the presence of a novel family of chiral bioinspired bipyrrolidine-derived aminopyridine manganese(II) complexes [LM II(OTf)2] is rep
3- and 4-uloses derived from N-acetyl- D -glucosamine: A unique pair of complementary organocatalysts for asymmetric epoxidation of alkenes
Schoeberl, Christof,Jaeger, Volker
supporting information; experimental part, p. 790 - 796 (2012/05/04)
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
Solid sodium hydroxide - THF, convenient system for synthesis esters of glycidic acids by darzens condensation
Gadaj,Kowalkowska,Jonczyk
, p. 577 - 584 (2008/09/19)
Isopropyl- and tert-butylchloroacetate react with carbonyl compounds in the presence of powdered sodium hydroxide in THF, without a catalyst, giving substituted glycidates. The process is applied for preparation of glycidates from ketones, hitherto unavailable by phase-transfer catalyzed Darzens condensation.