Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products, SDS of cas: 201341-05-1, 201341-05-1, Name is Tenofovir disoproxil, molecular formula is C19H30N5O10P, belongs to piperidines compound. In a document, author is Xu, Li-Ping, introduce the new discover.
Reactivity and Selectivity Controlling Factors in the Pd/ Dialkylbiarylphosphine-Catalyzed C-C Cleavage/Cross-Coupling of an N-Fused Bicyclo alpha-Hydroxy-beta-Lactam
Density functional theory was employed in order to elucidate the mechanism and factors that lead to the observed regioselectivity in the dialkylbiarylphosphine (Phos)/Pd-catalyzed C-C cleavage/cross-coupling of an N-fused bicyclo alpha-hydroxy-beta-lactam, 1. We have identified that (a) a complex [(1)(Cs2CO3)]-PdL(PhBr) forms prior to a base-mediated oxidative addition; (b) Cs-carbonate (rather than a halide) deprotonates the alcohol substrate in the lowest energy pathway en route to Pd-alcoholate formation; (c) reactions using Phos ligands bearing OCF3 and OCF2H substituents on the B-ring are predicted to be selective toward proximal ring opening of 1; (d) steric repulsion between the bottom B-ring of the Phos ligand and the piperidine moiety of 1 controls the regioselectivity of the C-C cleavage followed by cross-coupling; and (e) the alpha- vs beta-selective functionalization of the piperidine moiety in 1 is influenced by the bulkiness of the R-2-substituent of the coupling partner. These studies will aid in the design of selective functionalizations of the piperidine moiety in 1.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 201341-05-1. SDS of cas: 201341-05-1.
Reference:
Piperidine – Wikipedia,
,Piperidine | C5H11N – PubChem