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Search for "photosensitizers" in Full Text gives 60 result(s) in Beilstein Journal of Organic Chemistry.
Easy access to heterobimetallic complexes for medical imaging applications via microwave-enhanced cycloaddition
Beilstein J. Org. Chem. 2015, 11, 2202–2208, doi:10.3762/bjoc.11.239
- reported the successful synthesis of 64Cu-chelated porphyrin photosensitizers and a tumor targeting peptide. To the best of our knowledge, no previous example of the preparation of radioligand 64Cu corrole has been so far reported. Due to their easy copper insertion [21], corroles can be considered as
Synthesis and spectroscopic properties of β-triazoloporphyrin–xanthone dyads
Beilstein J. Org. Chem. 2015, 11, 1434–1440, doi:10.3762/bjoc.11.155
- photoelectric materials [7][8]. In addition, porphyrins are potentially used as photosensitizers in photodynamic therapy to treat various types of tumors [9][10]. In recent years, many hybrid molecules including porphyrin–C60 [11], porphyrin–quinones [12] and porphyrin–cyclodextrin [13] conjugates were
- xanthones, it was contemplated to incorporate these heterocyclic scaffolds in a single molecular framework to construct novel β-triazolo–porphyrin–xanthone conjugates and their diporphyrin analogues which may prove useful as photosensitizers for photodynamic therapy applications. Results and Discussion In
- bathochromic shift in their electronic absorption and fluorescence spectra as compared to the meso-tetraarylporphyrins. These results are significantly encouraging and henceforth may be useful for the development of new porphyrin materials for various applications including photosensitizers for photodynamic
A hybrid electron donor comprising cyclopentadithiophene and dithiafulvenyl for dye-sensitized solar cells
Beilstein J. Org. Chem. 2015, 11, 1052–1059, doi:10.3762/bjoc.11.118
- (EPFL), Station 6, CH-1050 Lausanne, Switzerland 10.3762/bjoc.11.118 Abstract Two new photosensitizers featured with a cyanoacrylic acid electron acceptor (A) and a hybrid electron donor (D) of cyclopentadithiophene and dithiafulvenyl, either directly linked or separated by a phenyl ring, were
- ][8] have been used in the construction of photosensitizers. Not surprisingly, tetrathiafulvalene (TTF), as a strong π-electron donor, has been incorporated into different D–π–A systems for numerous potential applications [9][10][11][12][13][14]. However, TTF-sensitized solar cells have rarely been
- substantial charge recombination losses during the electron-injection process, very probably caused by self-aggregation on the TiO2 surface and fast back-electron transfer upon photoexcitation. Conclusion In summary, we have synthesized two new organic photosensitizers featured with a DTF–CPDT hybrid as an
Ruthenium-catalyzed C–H activation of thioxanthones
Beilstein J. Org. Chem. 2015, 11, 431–436, doi:10.3762/bjoc.11.49
- , e.g., as photosensitizers (e.g., isopropylthioxanthone or diethylthioxanthone) [6][7][8] or as ligands [9][10]. Despite the widespread occurrences, there are only few modular syntheses reported so far and photosensitizing materials are often used as undefined mixtures. In addition, functionalization
First synthesis of meso-substituted pyrrolo[1,2-a]quinoxalinoporphyrins
Beilstein J. Org. Chem. 2014, 10, 808–813, doi:10.3762/bjoc.10.76
- of biologically important functional groups were also introduced on the periphery of meso-substituted porphyrins to develop efficient photosensitizers for photodynamic therapy applications [41][42][43]. However, the porphyrins with a pyrrolo[1,2-a]quinoxaline moiety at the meso-positions have not
From porphyrin benzylphosphoramidate conjugates to the catalytic hydrogenation of 5,10,15,20-tetrakis(pentafluorophenyl)porphyrin
Beilstein J. Org. Chem. 2014, 10, 628–633, doi:10.3762/bjoc.10.54
- hydrogenation; chlorin; isobacteriochlorin; phosphoramidate; porphyrin; Introduction The use of porphyrin derivatives as photosensitizers is considered for the photodynamic therapy (PDT) of malignant tumors and the treatment of age-related macular degeneration in several countries [1][2]. It is already known
Synthesis of meso-substituted dihydro-1,3-oxazinoporphyrins
Beilstein J. Org. Chem. 2013, 9, 496–502, doi:10.3762/bjoc.9.53
- [25], pyrrolidinone [26], pyrrolidine [27] and piperazine [28], to the porphyrin periphery. In addition, many porphyrin dimers and trimers have displayed significant biological efficacy [29] and some of these are used as photosensitizers in PDT applications for the treatment of various types of
Cyclodextrin nanosponge-sensitized enantiodifferentiating photoisomerization of cyclooctene and 1,3-cyclooctadiene
Beilstein J. Org. Chem. 2012, 8, 1305–1311, doi:10.3762/bjoc.8.149
- ] (Scheme 1). Enantiodifferentiating photosensitization of 1Z and 2ZZ was extensively studied by using different kinds of conventional and supramolecular chiral photosensitizers (Scheme 2). The enantioselectivity obtained is generally low to moderate, despite that fact that some reactions were performed at
- ). Enantiodifferentiating photoisomerizations of 1Z and 2ZZ sensitized by β- and γ-cyclodextrin nanosponges (CDNSs) cross linked by pyromellitic dianhydride (PDA). Representative enantiodifferentiating photosensitization of 1Z and 2ZZ with conventional and supramolecular photosensitizers. Enantiodifferentiating
Dioxane dibromide mediated bromination of substituted coumarins under solvent-free conditions
Beilstein J. Org. Chem. 2012, 8, 323–329, doi:10.3762/bjoc.8.35
- in nature [1] and applications in pharmaceuticals. They are used for the synthesis of formyl [2] and aryl derivatives [3] and serve as important synthetic precursors of furocoumarins and dihydrofurocoumarins, which are widely used as photosensitizers and chemotherapeutic agents to combat skin
Molecular recognition of organic ammonium ions in solution using synthetic receptors
Beilstein J. Org. Chem. 2010, 6, No. 32, doi:10.3762/bjoc.6.32
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