Development of a Suzuki Cross-Coupling Reaction between 2-Azidoarylboronic Pinacolate Esters and Vinyl Triflates To Enable the Synthesis of [2,3]-Fused Indole Heterocycles
作者:Navendu Jana、Quyen Nguyen、Tom G. Driver
DOI:10.1021/jo500252e
日期:2014.3.21
The scope and limitations of a Suzukireaction between 2-azidoarylboronic acid pinacolate esters and vinyl triflates are reported. This cross-couplingreaction enables the regioselective synthesis of indoles after a subsequent RhII2-catalyzed sp2-C–H bond amination reaction.
Photochemical intramolecular amination for the synthesis of heterocycles
作者:Shawn Parisien-Collette、Corentin Cruché、Xavier Abel-Snape、Shawn K. Collins
DOI:10.1039/c7gc02261a
日期:——
formed in good to excellent yields via photochemical conversion of the corresponding substituted aryl azides under irradiation with purple LEDs in a continuous flow reactor. The experimental set-up is tolerant to UV-sensitive functional groups while affording diverse carbazoles, as well as an indole and pyrrole framework, in short reaction times. The photochemical method is presumed to progress through
Synthesis and Properties of New N‐Heteroheptacenes for Solution‐Based Organic Field Effect Transistors
作者:Fei Zhou、Sheng Liu、Bernard D. Santarsiero、Donald J. Wink、Damien Boudinet、Antonio Facchetti、Tom Driver
DOI:10.1002/chem.201701966
日期:2017.9.12
synthesized from ortho‐thiophene‐substituted aryl azides using a Rh2II‐catalyzed C−H bond amination reaction to construct the thienoindole moieties. This reaction tolerated the presence of electron‐donating or withdrawing groups on the aryl azide without adversely affecting the yield of the amination reaction. The central thiophene ring was created from two thienoindole pieces through a Pd‐catalyzed
使用Rh 2 II由邻噻吩取代的芳基叠氮化物合成了一系列N-杂庚酮催化CH键胺化反应以构建噻吩并吲哚部分。该反应可耐受芳基叠氮化物上给电子或吸电子基团的存在,而不会对胺化反应的收率产生不利影响。中心噻吩环是由两个噻吩并吲哚碎片通过钯催化的斯蒂勒反应(Stille)安装硫醚,然后由铜介导的厄尔曼反应(Ullman reaction)触发环化反应而形成的。N-杂庚烯的聚焦文库的光物理和电化学性质表明,电子性质受芳烃取代基控制,而生长的单晶表明堆积基序受N-取代基影响。溶液加工的薄膜OFET器件是用N-庚基庚烯制造的,其中一个具有0.02 cm的空穴迁移率2 V -1 s -1。
First Suzuki–Miyaura type cross-coupling of ortho-azidobromobenzene with arylboronic acids and its application to the synthesis of fused aromatic indole-heterocycles
short synthesis of some fused indole-heterocycles has been achieved via Pd-catalyzed cross-coupling reactions between azido-2-bromobenzene and arylboronicacids and subsequent thermally induced nitrene insertion. Additionally, 4-amino-α-carboline, a versatile intermediate toward grossularine analogs has also been prepared by Suzuki–Miyaura cross-coupling of 4-pivaloylaminopyridine-3-boronic acid with
Thieno[3,2-b]indole based polymer and organo-electroluminescent device using the same
申请人:Sohn Byung-Hee
公开号:US20050181233A1
公开(公告)日:2005-08-18
A thieno[3,2-b]indole-based polymer and an organo-electroluminescent device in which the polymer is introduced into an organic layer are provided. The thieno[3,2-b]indole-based polymer may be easily prepared and has blue light-emitting characteristic. The organo-electroluminescent device adopting the organic layer using the thieno[3,2-b]indole-based polymer has improved color purity, efficiency, and luminance characteristics.