Pyrrolo Annelated Tetrathiafulvalenes: The Parent Systems
摘要:
[GRAPHICS]The synthesis of the parent bis(pyrrolo[3,4- d])tetrathiafulvalene via a nonclassical and sim pie pyrrole synthesis is reported, together with a detailed study of the fundamental redox behavior of some of this class of heterocycles.
Dimers of pyrrolo-annelated indenofluorene-extended tetrathiafulvalenes – large multiredox systems
作者:Line Broløs、Mogens Brøndsted Nielsen
DOI:10.1039/d0ra02787a
日期:——
A new pyrrolo-annelated indenofluorene-extended tetrathiafulvalene building block was developed and employed in N-arylation reactions for construction of redox-active dimeric scaffolds.
一个新的吡咯并螺吩扩展四硫富瓦烯建筑模块被开发并用于N-芳基化反应,以构建氧化还原活性的二聚支架。
Synthesis of 2-(Methylthio)-1,3-dithioles from 1,3-Dithiole-2-thiones: Important Building Blocks in Tetrathiafulvalene Chemistry
2-(Methylthio)-1,3-dithioles are important heterocyclic compounds used for the preparation of redox-active derivatives of tetrathiafulvalene as they serve as precursors for phosphonate esters that can be employed in Horner-Wadsworth-Emmons olefination reactions. Here, we present a mild and less hazardous method than previous methods for converting readily accessible 1,3-dithiole-2-thiones into 2-(methylthio)-1
Multi-redox indenofluorene chromophores incorporating dithiafulvene donor and ene/enediyne acceptor units
作者:Christina Schøttler、Kasper Lund-Rasmussen、Line Broløs、Philip Vinterberg、Ema Bazikova、Viktor B R Pedersen、Mogens Brøndsted Nielsen
DOI:10.3762/bjoc.20.8
日期:——
Large donor–acceptor scaffolds derived from polycyclicaromatichydrocarbons (PAHs) with tunable HOMO and LUMO energies are important for several applications, such as organic photovoltaics. Here, we present a large selection of PAHs based on central indenofluorene (IF) or fluorene cores and containing various dithiafulvene (DTF) donor units that gain aromaticity upon oxidation and a variety of acceptor
Pyrrolo-Annelated Tetrathiafulvalenes: The Parent Systems
作者:Jan Oskar Jeppesen、Kazuo Takimiya、Frank Jensen、Thomas Brimert、Kent Nielsen、Niels Thorup、Jan Becher
DOI:10.1021/jo000742a
日期:2000.9.1
The synthesis of a number pyrrolo-annelated tetrathiafulvalenes, including the parent bis(pyrrolo-[3,4-d])tetrathiafulvalene (7) is decribed. Starting from readily available 4,5-bis(bromomethyl)-1,3-dithiole-2-thione (14) and sodium tosylamide, the parent 7 and the asymmetric monopyrrolo tetrathiafulvalenes 23a;b were prepared in good yields via a nonclassical and simple pyrrole synthesis. Furthermore, a series of asymmetrical N-alkylated monopyrrolo/monodihydropyrrolotetrathiafulvalenes was prepared starting from primary amines and 14. A detailed study of the fundamental redox behavior of this class of heterocycles is reported. NMR spectroscopy, cyclic voltammetry, and PM3 MO calculations revealed that the pyrrolo-annelated tetrathiafulvalenes have highly extended pi-surfaces. The X-ray crystallographic analyses of the monopyrrolo tetrathiafulvalenes 22b and 24b, together with preliminary formation of a charge-transfer complex between the parent donor 7 and TCNQ, are also reported.