✦ LIBER ✦

Kinetics of base hydrolysis of α-amino acid esters catalyzed by the copper(II) complex of N,N,N′,N′-tetramethylethylenediamine (Me4en)

✍ Scribed by Mahmoud M. A. Mohamed; Azza A. Shoukry; Mohamed M. Shoukry

Publisher: John Wiley and Sons
Year: 2006
Tongue: English
Weight: 262 KB
Volume: 38
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.20206

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The kinetics of base hydrolysis of glycine‐, histidine‐, and methionine methyl esters in the presence of [Cu‐Me~4~en]^2+^ complex is studied in aqueous solutions and in dioxane–water solutions of different compositions at T = 25°C and I = 0.1 mol dm^−1^. The kinetics of base hydrolysis of glycine and methionine methyl esters is studied at different temperatures. The kinetic data fits assuming that the hydrolysis proceeds in one step. The activation parameters for the base hydrolysis of the complexes are evaluated. © 2006 Wiley Periodicals, Inc. Int J Chem Kinet 38: 737–745, 2006

📜 SIMILAR VOLUMES

The initial reaction in strong-base cata

The initial reaction in strong-base catalyzed polymerizations of α-amino acid N-carboxyanhydrides

✍ Murray Goodman; Uriel Arnon 📂 Article 📅 1963 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 209 KB 👁 1 views

Alternative and Chemoselective Deprotect

Alternative and Chemoselective Deprotection of the α-Amino and Carboxy Functions of N-Fmoc-Amino Acid and N-Fmoc-Dipeptide Methyl Esters by Modulation of the Molar Ratio in the AlCl3/N,N-Dimethylaniline Reagent System.

✍ Maria Luisa Di Gioia; Antonella Leggio; Adolfo Le Pera; Angelo Liguori; Francesc 📂 Article 📅 2005 🏛 John Wiley and Sons ⚖ 35 KB 👁 1 views

Alternative and Chemoselective Deprotect

✍ Maria Luisa Di Gioia; Antonella Leggio; Adolfo Le Pera; Angelo Liguori; Francesc 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 111 KB

Kinetics and mechanism of the oxidation

Kinetics and mechanism of the oxidation of L-α-amino-n-butyric acid by permanganate in acid medium

✍ A. Arrizabalaga; F. J. Andrés-Ordax; M. Y. Fernández-Aránguiz; R. Peche 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 383 KB 👁 1 views

The kinetic study of the oxidation of L-a-amino-n-butyric acid by permanganate ions has been carried out in buffered acid medium at pH = 1-3. using a spectrophotometric techriique An auto-catalytic effect has been observed in all cases due to Mn2+ ions formed as a product of the reaction. A first-or

Asymmetric Diels–Alder and Inverse-Elect

Asymmetric Diels–Alder and Inverse-Electron-Demand Hetero-Diels–Alder Reactions of β,γ-Unsaturated α-Ketoesters with Cyclopentadiene Catalyzed by N,N′-Dioxide Copper(II) Complex

✍ Yin Zhu; Xiaohong Chen; Mingsheng Xie; Shunxi Dong; Zhen Qiao; Dr. Lili Lin; Dr. 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 328 KB 👁 1 views

## Abstract Highly enantioselective Diels–Alder (DA) and inverse‐electron‐demand hetero‐Diels–Alder (HDA) reactions of β,γ‐unsaturated α‐ketoesters with cyclopentadiene catalyzed by chiral __N__,__N′__‐dioxide–Cu(OTf)~2~ (Tf=triflate) complexes have been developed. Quantitative conversion of β,γ‐un

ChemInform Abstract: N-Boc-α-tosylsarcos

ChemInform Abstract: N-Boc-α-tosylsarcosine Ethyl Ester: An α-Amido Sulfone for the Regio- and Stereoselective Synthesis of Protected γ,δ-Unsaturated N-Methyl-α-amino Acids by Palladium-Catalyzed Nucleophilic Substitution.

✍ D. A. ALONSO; A. COSTA; C. NAJERA 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 37 KB 👁 1 views