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Beilstein J. Org. Chem. 2023, 19, 1155–1160, doi:10.3762/bjoc.19.83
Graphical Abstract
Figure 1: Biologically active 4-arylpyrazolo[3,4-b]pyridin-6-ones.
Scheme 1: Methods for the synthesis of 4-arylpyrazolo[3,4-b]pyridin-6-ones.
Scheme 2: One-pot synthesis of 4-arylpyrazolo[3,4-b]pyridin-6-ones 4a–i, 9a, and 10a.
Figure 2: Normalized absorption and fluorescence spectra of solutions of compounds 4a–i, 9a, and 10a in EtOH.
Beilstein J. Org. Chem. 2017, 13, 313–322, doi:10.3762/bjoc.13.34
Figure 1: D–A compounds 1–3.
Scheme 1: Synthesis of 3-decyl-2,2'-bithiophene-5-carboxylic acid ethyl esters 7a–c.
Scheme 2: Synthesis of ethyl esters of 5'-aryl-3-decyl-2,2'-bithiophene-5-carboxylic acids 7d–g.
Scheme 3: Synthesis of diacyl hydrazines 14b–g.
Scheme 4: Synthesis of 5'-aryl-substituted 2,5-bis(3-decyl-2,2'-bithiophen-5-yl)-1,3,4-oxadiazoles 15b–g.
Figure 2: 5'-Aryl-substituted 2,5-bis(3-decyl-2,2'-bithiophen-5-yl)-1,3,4-oxadiazoles 15b–g: a) absorption sp...
Figure 3: General structure of 5'-aryl-substituted 2,5-bis(3-decyl-2,2'-bithiophen-5-yl)-1,3,4-oxadiazoles.
Figure 4: Frontier molecular orbitals (HOMO−1, HOMO, LUMO and LUMO+1) and values for HOMO–LUMO band gaps of t...