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Beilstein J. Org. Chem. 2013, 9, 767–774, doi:10.3762/bjoc.9.87
Graphical Abstract
Scheme 1: The ring-opening reaction of symmetric 2,5-disubstituted-dithieno[2,3-b:3',2'-d]thiophenes in the p...
Scheme 2: The ring-opening reaction of 1 in the presence of n-BuLi and t-BuLi employed for metal–halogen exch...
Figure 1: Crystallographic structure of 3i (left, top view) and crystal packing (right). Carbon, silicon, oxy...
Beilstein J. Org. Chem. 2009, 5, No. 55, doi:10.3762/bjoc.5.55
Figure 1: Chemical structures of 1 and 2.
Scheme 1: Synthetic route to 1 and 2. Reagents and conditions: (a) (i) n-BuLi (2.3 equiv), Et2O, reflux; (ii)...
Figure 2: Molecular structure and conformation of 1.
Figure 3: Crystal packing structure of 1.
Figure 4: UV–vis spectra of 1 and 2 in chloroform ([C] = 1 × 10−5 M).