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Beilstein J. Org. Chem. 2024, 20, 3016–3025, doi:10.3762/bjoc.20.251
Graphical Abstract
Figure 1: Structure of previously synthesized stilbazoles А and arylidene derivatives of pyrindane 1 reported...
Scheme 1: Synthesis of donor–acceptor 1-pyrindane derivatives 1.
Figure 2: 1H,1H-NOESY spectrum of compound 1c in DMSO-d6.
Figure 3: Absorption (left) and normalized emission spectra (right) of compound 1i in various solvents (c = 10...
Scheme 2: Plausible equilibrium of compounds 1i and 1iH+ in acidic solution.
Figure 4: Solvatochromic behavior of compounds 1c and 1i: plots of arithmetic mean of emission/absorption wav...
Figure 5: Absorption spectra of compounds 1a–i in toluene (left) and DMSO (right, c = 10−5 M).
Figure 6: Normalized emission spectra of compounds 1a–i in toluene (left) and DMSO (right, c = 10−5 M).
Figure 7: Photos of fluorescent solutions of compounds 1a–i in toluene (top) and DMSO (bottom) taken under a ...
Figure 8: Normalized solid-state emission spectra of compounds 1a–i (bottom) and photos of powders taken unde...
Beilstein J. Org. Chem. 2016, 12, 2093–2098, doi:10.3762/bjoc.12.198
Scheme 1: An exclusive approach to 3,4-dihydro-2H-pyran-4-carboxamides from non-pyran sources.
Scheme 2: Known approach to pyran derivatives based on ketonitriles 1.
Figure 1: The molecular structure of 2a with atom-numbering scheme. Displacement ellipsoids are drawn at the ...
Scheme 3: Plausible reaction pathways for 3,4-dihydro-2H-pyran-4-carbxamides 2 formation.