On the search for an addition-intermediate along the reaction path of nucleophilic aromatic substitution

On the search for an optimum reaction pa

On the search for an optimum reaction path-way for synthesis of Pb free Bi2Sr2Ca2Cu3O10 superconductor

✍ P.V.P.S.S. Sastry; A.R. West 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 443 KB

A comparative study of several precursor reaction path-ways for the synthesis of Pb free Bi-2223 is conducted. For the same overall starting composition, kinetics of 2223 formation and phase purity of end products depend, to a large extent, on the starting precursors. Among the methods tried, that i

Micellar effects of a triazole-based cat

Micellar effects of a triazole-based cationic gemini surfactant on the rate of a nucleophilic aromatic substitution reaction

✍ Ling-Guang Qiu; An-Jian Xie; Yu-Hua Shen 📂 Article 📅 2005 🏛 Springer ⚖ 301 KB

P(i-BuNCH2CH2)3N: An Efficient Promoter

P(i-BuNCH2CH2)3N: An Efficient Promoter for the Nucleophilic Aromatic Substitution Reaction of Aryl Fluorides with Aryl TBDMS (or TMS) Ethers.

✍ Sameer Urgaonkar; John G. Verkade 📂 Article 📅 2005 🏛 John Wiley and Sons ⚖ 37 KB 👁 1 views

ChemInform Abstract: Potassium Hydrogenc

ChemInform Abstract: Potassium Hydrogencarbonate as a Source of an Active Deprotonation Agent for the Reaction of Aromatic Substitution of Nitrogroups by Nucleophiles.

✍ M. V. Dorogov; I. G. Abramov; G. G. Krasovskaya; S. A. Ivanovsky 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 35 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

ChemInform Abstract: Nucleophilic Substi

ChemInform Abstract: Nucleophilic Substitution Reactions of Benzyl- and Diphenylmethylphosphonamidic Chlorides with Amines: Competition Between the Usual SN2(P) Mechanism and Elimination—Addition with an Alkylideneoxophosphorane (Phosphene) Intermediate.

✍ Martin J. P. Harger 📂 Article 📅 2001 🏛 John Wiley and Sons ⚖ 33 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

Solvent effects on aromatic nucleophilic

Solvent effects on aromatic nucleophilic substitution reactions. Part 7. Determination of the empirical polarity parameter ET(30) for dipolar hydrogen bond acceptor–co-solvent (chloroform or dichloromethane) mixtures. Kinetics of the reactions of halonitrobenzenes with aliphatic amines

✍ P. M. E. Mancini; A. Terenzani; C. Adam; L. R. Vottero 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 162 KB 👁 2 views

Empirical solvent polarity parameters E T (30) were determined by UV/VIS spectroscopy, using Dimroth-Reichardt's betaine dye, as a function of composition, for several binary solvent mixtures [i.e. polar hydrogen bond acceptor (PHBA) solvents + chloroform or dichloromethane]. Each solvent system was