This search combines search strings from the content search (i.e. "Full Text", "Author", "Title", "Abstract", or "Keywords") with "Article Type" and "Publication Date Range" using the AND operator.
Beilstein J. Org. Chem. 2023, 19, 674–686, doi:10.3762/bjoc.19.49
Graphical Abstract
Figure 1: Proton sponge-based 1,4-diaryl-1,3-butadiynes synthesized previously and in this study.
Figure 2: Target oligomers as push–pull and cross-conjugated π-systems.
Scheme 1: Synthetic strategy for target oligomers 5.
Scheme 2: Synthesis of 7-(arylethynyl)-2-ethynyl-DMAN 6.
Scheme 3: Synthesis of 1,4-diaryl-1,3-butadiynes 5 and their salts 11.
Figure 3: Molecular structures of compounds 5b (top), 5d (middle), and 5e (bottom).
Figure 4: Views on the molecular backbone of compounds 5b (top), 5d (middle), and 5e (bottom) along the napht...
Scheme 4: Transformation of butadiyne 5c into benzo[g]indole 12.
Figure 5: Molecular structure of compound 11c: frontal (top; BF4− omitted) and side views (bottom; hydrogen a...
Figure 6: Calculation of the qr parameter.
Figure 7: Two π-conjugation ways in oligomers 5.
Figure 8: UV–vis spectra of oligomers 5 (blue line), monomers 6 (red line), and butadiyne 1 (green line).
Figure 9: UV–vis spectra of salts 11 (left), 1·2HBF4 and 6b·HBF4 (right) in acetonitrile.
Figure 10: π-Conjugation pathway in salts 11b and 6b·HBF4.
Figure 11: Cyclic voltammograms of oligomers 5.
Scheme 5: Possible ways of one- and two-electron oxidation of oligomers 5.