94520-78-2Relevant articles and documents
Resolution of nitrogen-centered chiral tetraalkylammonium salts: application to [1,2] Stevens rearrangements with N-to-C chirality transmission
Tayama, Eiji,Otoyama, Seijun,Tanaka, Hiroyuki
experimental part, p. 2600 - 2608 (2010/03/24)
The resolution of N-chiral, amino acid-derived quaternary ammonium salts is demonstrated by using chiral BINOL as a complexing agent. Determination of the enantiopurities and absolute configurations of the resolved N-chiral tetraalkylammonium salts are described. The [1,2] Stevens rearrangement of N-chiral ammonium salts is shown to proceed with N-to-C chirality transmission to afford optically active 3-substituted morpholin-2-one derivatives.
Synthesis of N-(dialkylaminoalkyl)alcohols by homogeneously catalyzed hydrogenolysis of cyclic N,O-acetals
Tararov, Vitali I.,Kadyrov, Renat,Riermeier, Thomas H.,B?rner, Armin
, p. 375 - 380 (2007/10/03)
The homogeneously catalyzed hydrogenation of 1,3-oxazolidines affording unsymmetrically substituted 2-N-(dialkylamino)ethanols is reported showing for the first time that Rh(I) catalysts based on chelating diphosphines can be advantageous for this reaction.