The influencing factors and marketing strategies of developing telecommunication industry customer loyalty
作者:Li Li、Wengui Su、Jian Jiang
DOI:10.1145/1089551.1089697
日期:——
In this paper, we analyze the influencing factors of the customer loyalty and set up the relational assess model, then apply analytic hierarchy process to establish the relation weights which influence the customer loyalty. At last, by means of applied instances in telecommunication industry, we represent the internal relations between the influencing factor weights and the customer loyalty and put forward marketing strategies on product and customer divergences to develop the customer loyalty.
The scalable pinacol coupling reaction utilizing the inorganic electride [Ca<sub>2</sub>N]<sup>+</sup>·e<sup>−</sup> as an electron donor
作者:Ye Ji Kim、Sun Min Kim、Hideo Hosono、Jung Woon Yang、Sung Wng Kim
DOI:10.1039/c4cc00802b
日期:——
An inorganic electride [Ca2N]+·e− is used as an efficient electron donor for the scalable pinacol coupling reaction with a high yield.
一种无机电子亚胺[Ca2N]+·e−被用作可扩展的高产率品可醇偶联反应的高效电子给体。
Application of coumarin dyes for organic photoredox catalysis
作者:Andrea Gualandi、Giacomo Rodeghiero、Emanuele Della Rocca、Francesco Bertoni、Marianna Marchini、Rossana Perciaccante、Thomas Paul Jansen、Paola Ceroni、Pier Giorgio Cozzi
DOI:10.1039/c8cc04048f
日期:——
Here we report the application of readily prepared and available coumarin dyes for photoredoxcatalysis, which are able to mimic powerful reductant [Ir(III)] complexes. Coumarin derivatives 9 and 10 were employed as photoreductants in pinacol coupling and in other reactions, in the presence of Et3N as a sacrificial reducing agent. As the electronic, photophysical, and steric properties of coumarins
Influence of External Ligands and Auxiliaries on the Reactivity of Low-Valent Titanium in McMurry Reaction: Selectivity and Mechanistic Profile
作者:N. Balu、S. K. Nayak、A. Banerji
DOI:10.1021/ja9535221
日期:1996.1.1
auxiliaries also resisted deoxygenation completely to give the pinacols in higher yields and better diastereoselectivity, as compared to pyridine-modified LVT system. Amongst these modified reagents, the LVT−catechol (1:1) system was found to be the most efficient combination for total pinacolization of aromatic carbonyl compounds, even under refluxing conditions. The actual titanium reagent responsible
Copper-Catalyzed Double Intramolecular Ullmann Coupling for the Synthesis of Diastereomerically and Enantiomerically Pure 4b,9b-Dihydrobenzofuro[3,2-<i>b</i>]benzofurans
作者:Hans-Georg Imrich、Jürgen Conrad、Uwe Beifuss
DOI:10.1002/ejoc.201501132
日期:2015.12
The copper-catalyzeddoubleintramolecularUllmanncoupling of syn-1,2-bis(2-bromoaryl)ethane-1,2-diols with catalytic amounts of CuII oxinate as the copper source, K3PO4 as a base, and KI as a reductant in aqueous acetonitrile selectively delivers 4b,9b-dihydrobenzofuro[3,2-b]benzofurans in diastereomerically and enantiomericallypure form and yields of up to 90 %. The substrates can be obtained in