Synthesis of new bis(tetrahydropyrrolo[3,4-b]carbazoles) with a functionalized diaryl spacer
作者:Farokh Mehrabani、Ulf Pindur
DOI:10.1039/b006899n
日期:——
Some new bis(tetrahydropyrrolo[3,4-b]carbazoles) were synthesized by Diels–Alder reactions of in-situ generated indole-2,3-quinodimethanes with a variety of bismaleimides as dienophiles and also by reaction of dianilines with a succinic acid anhydride group incorporated into a biscarbazole. In a special reaction a spermine linker was introduced. The new biscarbazoles represent potential DNA ligands
一些新的双(四氢吡咯并[3,4- b ]咔唑)是通过原位生成的吲哚-2,3-喹二甲烷与各种双马来酰亚胺作为亲二烯物的狄尔斯-阿尔德反应,以及二苯胺与琥珀酸的反应合成的。并入双咔唑的酸酐基团。在一个特殊的反应中,引入了精胺接头。新的双咔唑代表了开发新的抗肿瘤活性药物的潜在DNA配体。
DIELECTRIC COMPOSITE MATERIAL FOR FINGERPRINT SENSOR INDUCTION LAYER AND PREPARATION METHOD THEREOF
申请人:TECORE SYNCHEM INC.
公开号:US20170121520A1
公开(公告)日:2017-05-04
Provided is a dielectric composite material for a fingerprint sensor induction layer and a preparation method therefor, wherein the dielectric composite material is made from the following components: an epoxy resin, a phenolic resin, a first type of dielectric inorganic filler, a second type of dielectric inorganic filler, a curing agent, an adhesion promoter, a mould releasing agent and a flame retardant. The dielectric composite material has a high dielectric constant, a small dielectric loss, very stable dielectric properties which change very little with the test frequency, non-transparency and high hardness, such that the fingerprint sensor induction layer prepared therefrom satisfies the requirements of reliability and stability while reaching the thickness requirement, and can be used in various portable electronic products. The dielectric composite material for the fingerprint sensor induction layer is free of heavy metal lead, and is green and environmentally friendly. The dielectric composite material has convenience and high safety, and therefore the terminal application thereof can not only replace the existing digital-input password identification system, but can also be used on any electronic component in need of security.