Different synthetic routes towards efficient organogelators: 2,3-substituted anthracenes
作者:Jean-Luc Pozzo、Gilles M. Clavier、Michel Colomes、Henri Bouas-Laurent
DOI:10.1016/s0040-4020(97)00297-4
日期:1997.5
synthetic approaches towards 2,3-substituted anthracenes are reported and discussed in terms of selectivity and viability. This allowed us to introduce a variety of substituents as sidearms. Promising results have been found using a tandem Diels-Alder aromatization reaction using 2,3-dimethoxybutadiene 9 as a key intermediate. However, for multigram preparations the Friedel-Crafts approach is preferred
Synthesis, Assembly, and Thin Film Transistors of Dihydrodiazapentacene: An Isostructural Motif for Pentacene
作者:Qian Miao、Thuc-Quyen Nguyen、Takao Someya、Graciela B. Blanchet、Colin Nuckolls
DOI:10.1021/ja036466+
日期:2003.8.1
films show that the molecules stack in layers with their long axis upright from the surface. Some of the derivatives synthesized for this study have unexpectedly high solubility in polar solvents such as DMF and DMSO. The crystal structure from DMF reveals self-assembled channels with each of the aniline functionalities forming a hydrogen bond with solvent. In more nonpolar solvents, the solid-state assembly
下面的研究详细介绍了二氢二氮杂并五苯的合成、组装和薄膜晶体管。这些分子具有与并五苯相同的分子形状,但更容易制备并且具有更高的环境稳定性。由二氢二氮杂并五苯制成的薄膜表现为场效应晶体管,其迁移率和开/关比足够高,可用于某些应用。在这些薄膜上的 X 射线衍射和 AFM 实验表明,分子堆叠成层,其长轴垂直于表面。本研究合成的一些衍生物在极性溶剂(如 DMF 和 DMSO)中具有出乎意料的高溶解度。DMF 的晶体结构揭示了自组装通道,每个苯胺官能团与溶剂形成氢键。在更多的非极性溶剂中,
Water Soluble and Activable Phenolics Derivatives with Dermocosmetic and Therapeutic Applications and Process for Preparing Said Derivatives
申请人:Auriol Daniel
公开号:US20090233876A1
公开(公告)日:2009-09-17
The invention relates to the preparation of phenolics derivatives by enzymatic condensation of phenolics selected among pyrocatechol or its derivatives with the glucose moiety of sucrose. The production of said phenolics derivatives is achieved with a glucosyltransferase (EC 2.4.1.5). These O-α-glucosides of selected phenolics are new, have a solubility in water higher than that of their parent polyphenol and have useful applications in cosmetic and pharmaceutical compositions, such as antioxidative, antiviral, antibacterial, immune-stimulating, antiallergic, antihypertensive, antiischemic, antiarrhythmic, antithrombotic, hypocholesterolemic, antilipoperoxidant, hepatoprotective, anti-inflammatory, anticarcinogenic antimutagenic, antineoplastic, anti-thrombotic, and vasodilatory formulations, or in any other field of application.
COMPOSITION FOR FORMING OPTICAL COMPONENT, OPTICAL COMPONENT, COMPOUND, AND RESIN
申请人:Mitsubishi Gas Chemical Company, Inc.
公开号:US20210309595A1
公开(公告)日:2021-10-07
Provided is a composition containing a polyphenol compound (B) and a solvent, in which the polyphenol compound (B) is at least one selected from a compound represented by the following formula (1) and a resin having a structure represented by the following formula (2):
wherein R
Y
, R
T
, X, m, N, r, and L are as described in the description.
Three new members of N-heteropentacenes explored herein have adjacent pyrazine and dihydropyrazine rings at one end of the pentacene backbone. Interesting findings from this study include self-complementary N–H···N H-bonds in the solid state, solvent-dependent UV–vis absorption caused by H-bonding, and new p-type organic semiconductors with field effect mobility up to 0.7 cm2 V–1 s–1.
本文探索的N-异戊烷的三个新成员在并五苯主链的一端具有相邻的吡嗪和二氢吡嗪环。这项研究的有趣发现包括固态的自互补N–H··N H键,由H键引起的溶剂依赖性UV-vis吸收以及新型p型有机半导体,其场效应迁移率高达0.7 cm 2 V –1 s –1。