186499-27-4Relevant academic research and scientific papers
Determining the enantioselectivity of chiral catalysts by mass spectrometric screening of their racemic forms
Ebner, Christian,Mueller, Constanze A.,Markert, Christian,Pfaltz, Andreas
, p. 4710 - 4713 (2011)
The enantioselectivity of a chiral catalyst can be determined from its racemic form by mass spectrometric screening of a nonequal mixture of two mass-labeled quasienantiomeric substrates. The presented method opens up new possibilities for evaluating catalyst structures that are not readily available in enantiomerically pure form.
A Self-Assembled Molecular Cage for Substrate-Selective Epoxidation Reactions in Aqueous Media
Kuijpers, Petrus F.,Otte, Matthias,Dürr, Maximilian,Ivanovi?-Burmazovi?, Ivana,Reek, Joost N. H.,De Bruin, Bas
, p. 3106 - 3112 (2016/07/06)
Encapsulation of a manganese porphyrin in a self-assembled molecular cage allows catalytic epoxidation of various substrates in 1:1 water/acetonitrile mixtures. The cage acts as a phase-transfer catalyst and creates a protective environment for the catalyst improving the stability. The encapsulated catalyst also allows discrimination between styrene derivatives of various sizes. In a direct competition experiment, the selectivity of the epoxidation reaction could be inverted with respect to a benchmark catalyst.
