Mechanochemical Synthesis of N‐Aryl Amides from O‐Protected Hydroxamic Acids
作者:Emmanouil Broumidis、Mary C. Jones、Filipe Vilela、Gareth O. Lloyd
DOI:10.1002/cplu.202000451
日期:2020.8
protocols for the synthesis of an array of N‐arylamides have been developed. This was achieved by a C−N cross‐coupling between O‐pivaloyl hydroxamicacids and aryl iodides or aryl boronic acids, in the presence of a stoichiometric amount of a copper mediator. The effectiveness of this method is highlighted by the high‐yielding (up to 94 %), scalable (up to 8 mmol), and rapid (20 minutes) synthesis of N‐aryl
The development of disilane‐bridged donor–acceptor–donor (D‐Si‐Si‐A‐Si‐Si‐D) and acceptor–donor–acceptor (A‐Si‐Si‐D‐Si‐Si‐A) compounds is described. Both types of compound showed strong emission (λem=ca. 500 and ca. 400 nm, respectively) in the solid state with high quantum yields (Φ: up to 0.85). Compound 4 exhibited aggregation‐induced emission enhancement in solution. X‐ray diffraction revealed
作者:Melissa Hündgen、Katharina A. Maier、Sigurd Höger、Stefan-S. Jester
DOI:10.1039/c8cc04403a
日期:——
H-shaped arylene–alkynylene scaffolds form brick-like patterns on graphite, as shown via scanning-tunneling microscopy.
H形芳基-炔基支架在石墨上形成类似砖块的图案,如通过扫描隧道显微镜所示。
Synthesis and Characterization of Arylacetylene Derivative as Solution Processable Organic Semiconductors for Organic Thin-Film Transistors
作者:Hyekyoung Kim、M. Rajeshkumar Reddy、Guhyun Kwon、Donghee Choi、Choongik Kim、SungYong Seo
DOI:10.1166/jnn.2016.13154
日期:2016.10.1
New arylacetylene derivative (4,7-bis((4-(thiophen-2-yl)phenyl)ethynyl)benzo[c][1,2,5]thiadiazole; 5) functionalized with thiophene and benzothiadiazole was synthesized and characterized as organic semiconductors for organic thin-film transistors (OTFTs). Compound 5 exhibited p-channel characteristics with carrier mobility as high as 10−4 cm2/Vs and a current on/off ratio > 105 for top-contact/bottom-gate OTFT devices.