nauseate
发表于 2025-3-28 15:06:39
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使成波状
发表于 2025-3-28 22:48:33
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cunning
发表于 2025-3-28 22:59:59
Heterogeneous Asymmetric Catalysis with C2 Symmetric Amine-Modified Rhodium/SilicaSupported homogeneous catalysis is generally obtained by synthesis of material in which ligand is covalently bound to the support . Such synthesis are generally neither straightforward nor easy to reproduce.
FUSC
发表于 2025-3-29 04:21:20
Strategies For Asymmetric Synthesis. What Is The Role Of Heterogeneous Catalysis?the use of a covalently bonded chiral auxiliary. This requires at first the attachment of the auxiliary to one of the reagent by a covalent bond which can be readily cleaved at the end of the sequence. The cleavage step should take place in high yields and without epimerization of the various chiral
ADAGE
发表于 2025-3-29 07:21:41
Scope and Limitations of the Application of Heterogeneous Enantioselective Catalyststo poly(aminoacids) as selective catalysts for the epoxidation of chalcones and a polymer supported dipeptide for the hydrocyanation of aldehydes. A short section describes enantioselective reactions in chiral liquid crystal and gels. iii) .. The preparation of different types of immobilized analogs
Apogee
发表于 2025-3-29 12:57:04
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reperfusion
发表于 2025-3-29 19:30:58
Studies of the Platinum Cinchona Alkaloid Catalyst for Enantioselective α-Ketoester Hydrogenationmake mechanistic elucidation difficult. In order to alleviate these problems we have been examining the application of novel colloidal catalysts to this reaction. Colloids have been shown to be more active than analogous conventional heterogeneous catalysts because of an increased active metal surfa
prostate-gland
发表于 2025-3-29 20:39:33
M. Dalla Chiara,R. Giuntini,R. Greechiethe use of a covalently bonded chiral auxiliary. This requires at first the attachment of the auxiliary to one of the reagent by a covalent bond which can be readily cleaved at the end of the sequence. The cleavage step should take place in high yields and without epimerization of the various chiral
Adjourn
发表于 2025-3-30 02:09:07
J.-J. Ch. Meyer,W. Van Der Hoekto poly(aminoacids) as selective catalysts for the epoxidation of chalcones and a polymer supported dipeptide for the hydrocyanation of aldehydes. A short section describes enantioselective reactions in chiral liquid crystal and gels. iii) .. The preparation of different types of immobilized analogs
捏造
发表于 2025-3-30 07:43:59
Similarities Between Attributesalyst by the adsorption of a chiral modifier. These systems are (a) modification of nickel catalyst, usually Raney Ni, by α-hydroxy or α-amino acids and (b) modification of platinum catalyst with the cinchona alkaloid derivatives.