936331-29-2Relevant academic research and scientific papers
Asymmetric α-oxyamination of aldehydes by synergistic catalysis of imidazolethiones and metal salts
Liang, Xianrui,Li, Na,Chen, Xinlei,Su, Weike
, p. 44039 - 44042 (2014)
Novel and efficient imidazolethione catalysts combined with metal salts were successfully introduced to the asymmetric α-oxyamination of aldehydes. The desired products with high yields and good to excellent enantioselectivities were obtained via a one-pot oxidation-oxyamination reaction system.
Enzymatic kinetic resolution and racemization of 2-(Tetramethylpiperidine- 1-oxyl)ethanols
Prechter, Agnes,Heinrich, Markus R.
, p. 5585 - 5589 (2013/09/12)
The Candida antarctica lipase B catalyzed transesterification of 2-(tetramethylpiperidine-1-oxyl)ethanols provides acetates in useful yields with good to high enantiomeric excess values. By taking advantage of the persistent radical effect, the remaining alcohols can be cleanly racemized under mild conditions in the presence of TEMPO [2,2,6,6-tetramethylpiperidin-1-yl)oxidanyl] . The Candida antarctica lipase B (CAL-B)-catalyzed transesterification of 2-(tetramethylpiperidine-1-oxyl)ethanols provides the corresponding acetates in useful yields with good to high enantiomeric excess values. The remaining alcohols can be cleanly racemized under mild conditions in the presence of TEMPO [2,2,6,6-tetramethylpiperidin-1-yl)oxidanyl]; MTBE = methyl tert-butyl ether. Copyright
One-pot sequential alcohol oxidation and asymmetric α-oxyamination in aqueous media using recyclable resin-supported peptide catalyst
Akagawa, Kengo,Fujiwara, Takuma,Sakamoto, Seiji,Kudo, Kazuaki
supporting information; experimental part, p. 8040 - 8042 (2011/01/03)
An efficient tandem reaction system was developed, in which primary alcohols were used for the oxidation to the corresponding aldehydes followed by an asymmetric α-oxyamination with a resin-supported peptide catalyst.
