Novel substituted tetrathia[7]helicenes by direct functionalization of the helical system or photocyclization of substituted 1,2-(bis-benzodithienyl)ethenes
Articolo
Data di Pubblicazione:
2008
Citazione:
Novel substituted tetrathia[7]helicenes by direct functionalization of the helical system or photocyclization of substituted 1,2-(bis-benzodithienyl)ethenes / C. Rigamonti, M.T. Ticozzelli, A. Bossi, E. Licandro, C. Giannini, S. Maiorana. - In: HETEROCYCLES. - ISSN 0385-5414. - 76:2(2008), pp. 1439-1470. [10.3987/COM-08-S(N)109]
Abstract:
In this work we report the synthesis of several new tetrathia[7]helicenes ([7]THs) functionalized with different electron-donor (ED) and electron-acceptor (EA) substituents in the positions 2,13 (the α positions of terminal thiophene rings) and/or 7,8 (on the central arene ring of the helical system). Some substituents were chosen on the basis of theoretical calculations performed on [7]THs to predict the best groups for applications in optoelectronics; some others were conceived to endow helicenes with appropriate groups in view of their insertion into polymeric structures.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
C. Rigamonti, M.T. Ticozzelli, A. Bossi, E. Licandro, C. Giannini, S. Maiorana
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