asymmetric hydrogenation in a sentence
1) Iridium complexes are being investigated as catalysts for asymmetric hydrogenation .
2) For example in the asymmetric hydrogenation of statin precursors.
asymmetric collocations
3) Research into asymmetric hydrogenation with heterogeneous catalysts has generally focused on three areas.
4) The field of asymmetric hydrogenation continued to experience a number of notable advances.
asymmetric hydrogenation example sentences
5) The Noyori asymmetric hydrogenation is based on ruthenium.6) Noyori asymmetric hydrogenation is the asymmetric reduction of β-keto-esters.
7) Chiral ligands are in homogeneous catalysis, e.g., asymmetric hydrogenation .
8) Today, a large array of molecular architectures can be successfully modified by asymmetric hydrogenation .
9) This experimental catalyst was employed in an asymmetric hydrogenation with a modest 15% enantiomeric excess.
10) Targets for asymmetric hydrogenation with rhodium generally require a coordinating group close to the olefin.
11) The Noyori asymmetric hydrogenation of ketones is an excellent example of dynamic kinetic resolution at work.
12) This field is relatively new, and few examples exist of chiral asymmetric hydrogenation using these frameworks.
13) Noyori has also demonstrated the kinetic resolution of allylic alcohols by asymmetric hydrogenation of the olefin.
14) Knowles and Noyori began with the development of asymmetric hydrogenation, which they developed independently in 1968.
example sentences with asymmetric
15) asymmetric hydrogenation is also possible via heterogeneous catalysis on a metal that is modified by a chiral ligand.16) The asymmetric hydrogenation of aromatic (especially heteroaromatic), substrates is a very active field of ongoing research.
17) The use of P,O ligands with transition metals in asymmetric hydrogenation is quite recent (2011).
18) The use of P,N ligands in asymmetric hydrogenation can be traced to the C2 symmetric bisoxazoline ligand.
19) The traditional process synthetic route involved a late-stage enamine formation followed by rhodium-catalyzed asymmetric hydrogenation to afford the API sitagliptin.
20) This methodology is essentially the reverse of Noyori's asymmetric transfer hydrogenation of ketones, which yield enantioenriched alcohols via reduction.
21) The key approach to the asymmetric hydrogenation of these heterocycles involves a ruthenium(II) catalyst and chiral, C2 symmetric N-heterocyclic carbene (NHC).
22) Despite these advances in the asymmetric hydrogenation of protected indoles, considerable operational simplicity can be gained by removing the protecting group altogether.
23) Using an easily cleaved N-Boc group would relieve this problem, and highly effective methods for the asymmetric hydrogenation of such indoles (both 2- and 3-substituted) were soon developed.
24) The most-general method of asymmetric pyridine hydrogenation is actually a heterogeneous method, where asymmetry is generated from a chiral oxazolidinone bound to the C2 position of the pyridine.
25) Two systems exist for the asymmetric hydrogenation of 2-substituted quinolines with isolated yields generally greater than 80% and ee values generally greater than 90%.
26) Ketones and imines are very closely related functional groups, and effective technologies for the asymmetric hydrogenation of each are also closely related.
27) Conversely to the case of olefins, asymmetric hydrogenation of enamines has favoured diphosphine-type ligands; excellent results have been achieved with both iridium- and rhodium-based systems.
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