Reported herein is the concept of fluorous racemic mixture synthesis (FRMS), which is applied to two types of proof-of-concept experiments. Mixtures of racemic O -benzoylmandelate derivatives and prochiral crotonamide derivatives, respectively, bearing different lengths of fluorous-cleavable tags are ...
Glenn E. WilcoxMark E. FlanaganMichael J. MunchhofTon VriesChristian KoecherUS
It is worth noting that the intensities of various diffraction peaks in the copolymer sample from racemic catalyst are obviously lower than the stereocomplexed PCXC obtained from the 1:1 mixture of the opposite enantiomers (Fig. 3, bottom, plots B and C). In addition, the melting endothermic...
bmicro-Raman spectra of vaterite helicoids formed in the presence of a mixture ofl-andd-Asp enantiomers (total Asp concentration equals 20 mm) at different e.e.L. All micro-Raman spectra are normalized to the ν1symmetric stretching peak of carbonate groups in vaterite helicoids at 1089...
An improved process for the separation of enantiomers of a racemic mixture of certain aliphatic carboxylic acids or esters thereof is disclosed. The process involves adding a mixture of the aliphatic carboxylic acid to the material formed by: (i) forming a solution comprising said racemic mixture ...
It is worth noting that the intensities of various diffraction peaks in the copolymer sample fromracemiccatalyst are obviously lower than the stereocomplexed PCXC obtained from the 1:1 mixture of the opposite enantiomers (Fig. 3, bottom, plots B and C). In addition, the melting endothermic pea...
transformed a racemic mixture of carboxylic acids into a diastereomeric mixture of esters by esterification with a chiral alcohol, (–)-carenediol, and then they separated them by column chromatography in 2005 [5]. However, the former protocol required strict validations of the conditions and ...
mixture between Lido:dlM and lidocaine melts completely at any lidocaine molar ratio. This finding can be explained by the high melting temperature difference between lidocaine and Lido:dlM (ΔT ~ 37 °C). In contrast, for the Lido:lM/lidocaine physical mixture melting, complete melting of the...