Sterically enhanced 2‐iminopyridylpalladium chlorides as recyclable ppm‐palladium catalyst for Suzuki–Miyaura coupling in aqueous solution
作者:Wenhua Lin、Liping Zhang、Yanping Ma、Tongling Liang、Wen‐Hua Sun
DOI:10.1002/aoc.6474
日期:2022.1
2-iminopyridine derivatives and their palladium chlorides complexes are designed and prepared, which efficiently promote the Suzuki–Miyauracoupling (SMC) reaction in aqueous solution. Besides the good to excellent yields and broad substrate scope, these catalysts can be reused for at least four new batches of the substrates. Spontaneous separation of coupling products in the aqueous reaction medium is
Effects of Different Terminal Substituents on the Mesomorphic Behavior of Some Azo-Schiff Base and Azo-Ester-Based Liquid Crystals
作者:B. T. Thaker、J. B. Kanojiya、R. S. Tandel
DOI:10.1080/15421406.2010.504632
日期:2010.10.14
In order to investigate the influence of the terminalsubstitution on mesomorphism, two new series of azo-Schiff base and azo-ester liquidcrystals having the following structures have been synthesized. All the compounds possess mesomorphic properties. In series A compounds A1 and A3 exhibit only a nematic mesophase, whereas compounds A2, A4, A5, A6, A7, A8, A9, and A10 exhibit a smectic as well as