Contorted Naphtho- and Fluorenocoronenes: Syntheses and Properties of Polycyclic Aromatics beyond Benzo- and Thiophenocoronenes
作者:Sushil Kumar、Yu-Tai Tao
DOI:10.1021/acs.orglett.8b00666
日期:2018.4.20
reactions on olefins carrying largeraromatic units are described to offer modular access to contorted polyaromatics of naphtho- and fluorenocoronenes, which are more extended frameworks than the known benzocoronenes. The annulation proceeded regioselectively when more than one mode was possible, based either on electronic or steric effect. The single-crystal field-effect transistor based on one of the derivatives
描述了在带有较大芳族单元的烯烃上的选择性氧化环脱氢反应提供了对扭曲的萘和芴酮的聚芳族化合物的模块化访问,所述萘酚和芴酮的扭曲的芳族化合物的骨架比已知的苯并Coronenes更广。基于电子或空间效应,当可能出现不止一种模式时,环空选择性地进行。基于衍生物之一萘并[ a,d ]茂金属的单晶场效应晶体管,其p载流子迁移率为0.04 cm 2 /(V s),开/关电流比为10 2 –10 3。。
Synthesis and physico-chemical properties of 2-alkoxy- 6-[4-(2-perfluorohexyl)ethylthiophenyl]naphthalene
ABSTRACT This paper describes the synthesis of and mesomorphic property and gelation ability for 2-Alkoxy- 6-[4-(2-perfluorohexyl)ethylthiophenyl]naphthalene (compounds 1-n). Compounds 1-n show exclusively a smectic A (SmA) phase, where the SmA–isotropic phase transition temperatures are 192°C for 1-1 and 171°C for 1-6. The SmA phase is characterized using a polarized microscope and DSC measurements