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.
A variety of novel hydroxyl-containing tetradentate bisoxazolines were successfully synthesized from natural l-serine and β-DDB. The applications of these ligands in the asymmetricpinacolcoupling of aromatic aldehydes revealed that the absoluteconfigurations of the resulting pinacols were entirely dominated by the axial chirality of the biphenyl component and that the bulky substituent adjacent
Pinacol Coupling Reaction of Aromatic Aldehydes Mediated by Zn in Acid Aqueous Media Under Ultrasound Irradiation
作者:Jin‐Hui Yang、Ji‐Tai Li、Jun‐Ling Zhao、Tong‐Shuang Li
DOI:10.1081/scc-120028629
日期:2004.12.31
Abstract Pinacolcoupling of aromatic aldehydes by Zn powder in aqueous H2NSO3H or H3PO4 under ultrasound irradiation can lead to the corresponding pinacols in 14–88% yields.
radicals, enabling a series of important reactions in synthetic chemistry, such as the reductivecoupling of aldehydes, ketones, and imines, the allylation of aldehydes, the Barbier reaction, reductive arylation, and aldehyde–aniline coupling. We also present evidence to support the ketyl radicals being formed via photoinduced intermolecular electron transfer from the tertiary amine to aryl aldehydes.
Ultrasound‐Promoted Magnesium‐Ammonium Bromide–Mediated Pinacol Coupling of Aromatic Aldehydes and Ketones
作者:Ji‐Tai Li、Yan‐Xue Chen、Tong‐Shuang Li
DOI:10.1080/00397910500296828
日期:2005.11
Pinacol coupling of aromatic aldehydes and ketones by Mg powder in 0.1-mol/L ammonium bromide aqueous solution can lead to the corresponding pinacols in 22-90% yields within 1-3 h at rt under ultrasound irradiation.