The 1,2,3-thiadiazole route to new vinylogue tetrathiafulvalenes
作者:Rasmus P. Clausen、Jan Becher
DOI:10.1016/0040-4020(95)01103-x
日期:1996.2
alkyne-1-thiolate gives new tetrathiafulvalene-type vinylogue extended π-donors in a one pot reaction. The solvent-/base-system used (acetonitrile/NaH) was optimised for the synthesis of 1,3-dithiole-2-thiones via this route. Efficient synthesis of the important 4-formyl-1,3-dithiol-2-thione and its coupling to 2,6(7)-bisformyltetrathiafulvalene is presented. Preparation of a number of new 1,4-dithiafulvenes
Synthesis and electrochemistry of new tetrathiafulvalene (TTF) dendrimers:X-ray crystal structure of a tetrafunctionalised TTF core unit
作者:Changsheng Wang、Martin R. Bryce、Andrei S. Batsanov、Leonid M. Goldenberg、Judith A. K. Howard
DOI:10.1039/a607597e
日期:——
A new synthetic approach to tetrathiafulvalene (TTF) dendrimers is
reported. Tetrakis(4-chloromethylbenzylthio)tetrathiafulvalene7
is a functionalised core unit which reacts with four equivalents of the
thiolate ion generated from compound 16 to afford the
trisdeca-TTF derivative 3. Compound 3 is a shelf-stable
solid which has been characterised by elemental analysis, MALDI-TOF mass
spectrometry,
1
H NMR spectroscopy and solution
electrochemistry. Thin layer cyclic voltammetry studies on pentakis-TTF
and trisdeca-TTF derivatives 11 and 3 in dichloromethane
solution in the presence of 2,3-dichloronaphthoquinone as an internal
reference, show that all the TTF units undergo two single-electron
oxidations. The single crystal X-ray structure of compound 7 is
reported: the molecules have crystallographic C
i
symmetry and form chair-like stacks parallel to the crystallographic
y axis.