A series of Ir–PCP pincer precatalysts [(7–6–7‐RPCP)Ir(H)(Cl)] and [(7–6–7‐ArPCP)Ir(H)(Cl)(MeCN)] bearing a novel “7–6–7” fused‐ring skeleton have been synthesized based upon the postulate that the catalytic species would have durability due to their rather rigid structure and high activity owing to the low but sufficient flexibility of their backbones, which are not completely fixed. Treatment of
一系列Ir–PCP钳式预催化剂[(7–6–7– R PCP)Ir(H)(Cl)]和[(7–6–7– Ar PCP)Ir(H)(Cl)(MeCN)]根据以下假设合成了带有新型“ 7–6–7”稠环骨架的骨架:由于其主链结构的低而足够的柔韧性,催化物种由于其相当刚性的结构和高活性而具有耐久性。不完全固定。用NaO t Bu处理这些前催化剂会产生活性的14个电子(14e)种类[(7-6--7- i Pr PCP)Ir]和[(7-6-7- Ph PCP)Ir],它们可以捕获氢,并在光谱上表征为四氢化物配合物。[(7–6–7‐ i Pr PCP)Ir]和[[7–6–7–7‐Ph PCP)Ir]被发现在以叔丁基乙烯为氢受体的环辛烷的转移脱氢中非常有效,[(7–6–7– i)在高温(230°C)下的初始反应速率更高Pr PCP)Ir]比[(7–6–7- Ph PCP)Ir]更大,后者的总氢转移率(TON)
MATERIALS FOR ELECTRONIC DEVICES
申请人:Merck Patent GmbH
公开号:US20200283386A1
公开(公告)日:2020-09-10
The present application relates to compounds of formula (I), to processes for preparation thereof, and to the use thereof in electronic devices.
本申请涉及式(I)化合物,涉及其制备方法,以及其在电子设备中的应用。
MODIFIER FOR AROMATIC POLYESTER AND AROMATIC POLYESTER RESIN COMPOSITION COMPRISING THE SAME
申请人:TABATA Masayoshi
公开号:US20110224343A1
公开(公告)日:2011-09-15
The present invention provides a modifier for aromatic polyesters which enhances the melt fluidity of aromatic polyesters without a significant decrease in the heat resistance of the aromatic polyesters, and an aromatic polyester resin composition including the modifier for aromatic polyesters. The present invention relates to a modifier for aromatic polyesters comprising polyhydric phenol residues and residues of aromatic polycarboxylic acid, acid halide or acid anhydride thereof, and the modifier comprises a material having a structure composed of a first residue selected from the group consisting of divalent residues represented by Formula (I): —Ar—W
1
x
—Ar— and by Formula (II): —Ar—, the first residues being bonded to two identical or different second residues selected from the group consisting of monovalent residues represented by Formula (III):
and monovalent residues represented by Formula (IV): —O—C(O)—R
7
—.
Synthesis and properties of novel N,C,N terdentate skeleton based on 1,3-di(pyridin-2-yl)benzene moiety—new tricks for old dogs
作者:Shuai Tan、Xiugang Wu、Yanqiong Zheng、Yafei Wang
DOI:10.1016/j.cclet.2019.08.003
日期:2019.11
Abstract Utilization of intermolecular Friedel–Crafts and intramolecular condensation reaction, novel 1,3-di(pyridine-2-yl)benzene(N,C,N terdentate) skeleton with electro-withdrawing group in 6' position of pyridyl and a cyclization between 6' position of pyridyl and 6 position of benzyl ring were firstly designed and synthesized. The structures of these novel N,C,N terdentate were confirmed by NMR
Indacenodithiophene and Indacenodiselenophene Polymers and their Use as Organic Semiconductors
申请人:Tierney Steven
公开号:US20110226999A1
公开(公告)日:2011-09-22
The invention relates to conjugated polymers comprising indacenodithiophene or indacenoselenophene units or derivatives thereof, to methods of their preparation, to novel monomer units used therein, to the use of the polymers in organic electronic (OE) devices, and to OE devices comprising the polymers.