The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 401566-79-8, Name is 1-(3-Methyl-1-phenyl-1H-pyrazol-5-yl)piperazine, SMILES is CC1=NN(C2=CC=CC=C2)C(N3CCNCC3)=C1, in an article , author is Enciso, Alan E., once mentioned of 401566-79-8, Formula: C14H18N4.
p-Substituted Tris(2-pyridylmethyl)amines as Ligands for Highly Active ATRP Catalysts: Facile Synthesis and Characterization
A facile and efficient two-step synthesis ofp-substituted tris(2-pyridylmethyl)amine (TPMA) ligands to form Cu complexes with the highest activity to date in atom transfer radical polymerization (ATRP) is presented. In the divergent synthesis,p-Cl substituents in tris(4-chloro-2-pyridylmethyl)amine (TPMA(3Cl)) were replaced in one step and high yield by electron-donating cyclic amines (pyrrolidine (TPMA(PYR)), piperidine (TPMA(PIP)), and morpholine (TPMA(MOR))) by nucleophilic aromatic substitution. The [Cu-II(TPMA(NR2))Br](+)complexes exhibited larger energy gaps between frontier molecular orbitals and >0.2 V more negative reduction potentials than [Cu-II(TPMA)Br](+), indicating >3 orders of magnitude higher ATRP activity. [Cu-I(TPMA(PYR))](+)exhibited the highest reported activity for Br-capped acrylate chain ends in DMF, and moderate activity toward C-F bonds at room temperature. ATRP ofn-butyl acrylate using only 10-25 part per million loadings of [Cu-II(TPMA(NR2))Br](+)exhibited excellent control.
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Reference:
Piperidine – Wikipedia,
,Piperidine | C5H11N – PubChem