86906-05-0Relevant articles and documents
Direct asymmetric N-specific reaction of nitrosobenzene with aldehydes catalyzed by a chiral primary amine-based organocatalyst
Qin, Long,Li, Lei,Yi, Lei,Da, Chao-Shan,Zhou, Yi-Feng
experimental part, p. 527 - 533 (2012/01/11)
Nitroso compounds have two reactive nitrogen and oxygen atoms. It is interesting and important to perform a nitrogen or oxygen selective reaction with interesting substrates. These atom specific reactions are crucial to specifically synthesis of specific compounds. An enantioselective N-specific reaction of nitrosobenzene with unmodified aldehydes was successfully achieved catalyzed first by a variety of primary amine-based organocatalysts with higher yield and enantioselectivity. The bulkier substituted groups of the organocatalyst and two hydrogen bonds from the organocatalyst and the oxygen atom of nitrosobenzene make the reaction preferentially N-specific and predominantly afford R products.
COMPOSITIONS AND METHODS FOR CYCLOFRUCTANS AS SEPARATION AGENTS
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Page/Page column 45-49; 64, (2010/12/31)
The present invention relates to derivatized cyclofructan compounds, compositions comprising derivatized cyclofructan compounds, and methods of using compositions comprising derivatized cyclofructan compounds for chromatographic separations of chemical species, including enantiomers. Said compositions may comprise a solid support and/or polymers comprising derivatized cyclofructan compounds.
Highly Diastereoselective Synthesis of trans-2,5-Disubstituted Tetrahydrofurans
Jalce, Gael,Seck, Matar,Franck, Xavier,Hocquemiller, Reynald,Figadere, Bruno
, p. 3240 - 3241 (2007/10/03)
trans-2,5-Disubstituted tetrahydrofurans were obtained as major diastereomers (trans / cis ratio 90:10-100: 0) when acetylated y-lactols derived from (S)-glutamic acid were treated with titanium enolates of N-acetyl (R)-oxazolidin-2-thiones. A simple tran