22170-03-2Relevant articles and documents
Sugar based γ-amino alcohol organocatalyst for asymmetric Michael addition of β-keto esters with nitroolefins
Begum, Zubeda,Chennapuram, Madhu,Ganesan, Divakar,Kwon, Eunsang,Nakano, Hiroto,Okuyama, Yuko,Seki, Chigusa,Takeshita, Mitsuhiro,Tokiwa, Michio,Tokiwa, Suguru,Uwai, Koji
, p. 1536 - 1545 (2020/01/28)
Sugar based γ-amino alcohol was used in asymmetric Michael addition of β-keto esters with nitroolefins for the first time affording the corresponding several chiral Michael adducts bearing quaternary chiral carbon center in moderate to good chemical yields and stereoselectivities (up to 98%, up to dr. 95:5, up to 84% ee).
The Use of Grignard Reagents in the Synthesis of Carbohydrates. III. The One-way Anomerization of Methyl Glycofuranosides and the Opening of Their Furanose Rings
Kawana, Masajiro,Kuzuhara, Hiroyoshi,Emoto, Sakae
, p. 1492 - 1504 (2007/10/02)
The anomerization of methyl glycofuranoside derivatives with methylmagnesium iodide or t-butylmagnesium bromide occurred in a one-way manner.For example, methyl 5-O-benzyl-β-D-ribofuranoside (3β) was converted into the corresponding α-anomer (3α) in a 95p