83947-50-6Relevant academic research and scientific papers
Optically Active Phenylethene Dimers Based on Planar Chiral Tetrasubstituted [2.2]Paracyclophane
Gon, Masayuki,Morisaki, Yasuhiro,Chujo, Yoshiki
, p. 6323 - 6329 (2017)
Optically active phenylethene dimers based on a planar chiral 4,7,12,15-tetrasubstituted [2.2]paracyclophane were synthesized. We succeeded in controlling the molecular motion by binding luminophores in close proximity with the [2.2]paracyclophane scaffol
Transborylation of alkenylboranes with diboranes
Bru, Gerard,Carbó, Jorge J.,Dominguez-Molano, Paula,Fernández, Elena,Maza, Ricardo J.,Salvado, Oriol
supporting information, p. 13361 - 13364 (2021/12/17)
Exchange of boryl moieties between alkenylboranes and diboron reagents has been postulated as a stereospecific cross-metathesis pathway with concomitant formation of mixed diboron reagents. DFT calculations propose a mechanism for the stereocontrolled C(sp2)-B/B′-B′ cross-metathesis with both symmetric and non-symmetric diboron reagents. This journal is
Selective Dehydrogenative Mono- or Diborylation of Styrenes by Supported Copper Catalysts
Yoshii, Daichi,Jin, Xiongjie,Mizuno, Noritaka,Yamaguchi, Kazuya
, p. 3011 - 3016 (2019/04/13)
The selective dehydrogenative borylation of alkenes is an attractive method for synthesizing useful borylalkenes. However, very few catalytic systems have been reported that fulfill this objective. All the reported examples are homogeneous catalysts with
Electrophilic borylation of terminal alkenes with BBr3/2,6-disubstituted pyridines
Tanaka, Shinya,Saito, Yuki,Yamamoto, Takaya,Hattori, Tetsutaro
supporting information, p. 1828 - 1831 (2018/04/14)
A variety of terminal alkenes, as well as heteroaromatic compounds, are borylated by the combined use of BBr3/2,6-dichloropyridine (B3) or BBr3/2,6-lutidine (B5). α,α-Diarylalkenes prefer the former reagent combination, while other alkenes prefer the latter. Mechanistic considerations strongly suggest that the former and latter reactions proceed through electrophilic substitution reactions with BBr3 and [BBr2·B5]+BBr4-, respectively.
A perpendicular phenyl-induced exceedingly efficient solid-state excited state intramolecular proton transfer fluorophore based on 2-(2-hydroxyphenyl)benzothiazole
Wang, Qin,Xu, Longfei,Niu, Yahui,Wang, Yuxiu,Yuan, Mao-Sen,Zhang, Yanrong
, p. 365 - 370 (2017/05/04)
Fluorescent solid-state organic materials have been intensively researched in recent years. In this study, two 2-(2-hydroxyphenyl)benzothiazole (HBT) derivatives: phenylethylene-modified HBT (HBT-s-Ph) and diphenylethylene-modified HBT (HBT-d-Ph), were sy
Iron-Catalyzed e?Selective dehydrogenative borylation of vinylarenes with pinacolborane
Wang, Chao,Wu, Caizhi,Ge, Shaozhong
, p. 7585 - 7589 (2018/05/23)
We report the dehydrogenative borylation of vinylarenes with pinacolborane (HBpin) catalyzed by an iron(0) complex “(PMe3)4Fe”. A variety of monosubstituted and disubstituted vinylarenes underwent this iron-catalyzed transformation, affording E-vinyl boronate esters (VBEs) selectively in hi h ields. In addition we coupled this iron-catal zed dehydrogenative borylation with further transformations of the resulting vinyl boronate esters and developed various one-pot procedures for the functionalization of the vinylic C?H bonds in vinylarenes. Mechanistic studies reveal that this Fe-catalyzed reaction proceeds through syn-insertion of vinylarenes into a Fe-boryl species followed by β-hydrogen elimination from a syn coplanar conformation of the borylalkyl iron intermediate.
Borylation of Olefin C-H Bond via Aryl to Vinyl Palladium 1,4-Migration
Hu, Tian-Jiao,Zhang, Ge,Chen, Ya-Heng,Feng, Chen-Guo,Lin, Guo-Qiang
supporting information, p. 2897 - 2900 (2016/03/19)
The aryl to vinyl palladium 1,4-migration was realized for the first time. The generated alkenyl palladium species was trapped by diboron reagents under Miyaura borylation conditions, providing a new method to synthesize β,β-disubstituted vinylboronates. The excellent regioselectivity and broad substrate scope were observed for this novel transformation.
Synthesis and evaluation of thiophene-based organic dyes containing a rigid and nonplanar donor with secondary electron donors for use in dye-sensitized solar cells
Fuse, Shinichiro,Takahashi, Ryota,Maitani, Masato M.,Wada, Yuji,Kaiho, Tatsuo,Tanaka, Hiroshi,Takahashi, Takashi
supporting information, p. 508 - 517 (2016/02/18)
We demonstrate herein the divergent synthesis of six dyes containing our originally developed rigid and nonplanar donor with three different secondary electron donors (SEDs), namely thiophene, 4-methoxybenzene, and diphenylethene. Evaluation of the photop
PSiP-pincer type palladium-catalyzed dehydrogenative borylation of alkenes and 1,3-Dienes
Kirai, Naohiro,Iguchi, Shoichiro,Ito, Tatsuyoshi,Takaya, Jun,Iwasawa, Nobuharu
, p. 784 - 799 (2013/08/23)
Dehydrogenative borylation of alkenes and 1,3-dienes was realized by carrying out the reaction in the presence of bis(pinacolato)diboron (B2pin2) and a catalytic amount of PSiP-pincer palladium complex. This protocol has the following notable features. 1)
APPLICATION OF TRIPHENYLENE DERIVATIVES IN ORGANIC ELECTROLUMINESCENT DEVICES
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, (2013/02/28)
Triphenylene derivatives having a structure of formula (1) are provided. Ar represents an aromatic compound, n is 1 to 3, and each of R and R1 to R13 is a member independently selected from the group consisting of hydrogen, halo, cyano, trifluoromethyl, amino, C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, C3-C20 cycloalkyl, C3-C20 cycloalkenyl, C1-C20 heterocycloalkyl, C1-C20 heterocycloalkenyl, aryl and heteroaryl. The compound of the present invention may function as a host emitter or dopant in the emitter layer of OLED device. An OLED device is also herein provided.
