Results 81 to 90 of about 4,067 (210)

Enantioselective dearomative ortho-cycloaddition transformation of unactivated arenes by cage-confined visible-light photocatalysis

Nature Communications
Photoinduced dearomatization of arenes is a powerful strategy in organic synthesis to disrupt the stable aromaticity; however, the asymmetric dearomatization photocatalysis of unactivated arenes remains highly challenging and rare.
Jie Yang, Zhongshu Li, Xiantao Wu, Jie Chen, Sisi Huang, Yu-Lin Lu, Zhiwei Jiao, Cheng-Yong Su   +7 more
doaj   +1 more source

Electron-transfer catalyzed cycloaddition reactions of unactivated cyclic olefins in weakly coordinating anion electrolyte [PDF]

, 2015
Cis-Cyclooctene, C8H14, undergoes an efficient electron-transfer (ET) catalyzed cycloaddition reaction in dichloromethane containing NBu4B(C6F5)4 as supporting electrolyte. The reactions were initiated by in-situ anodic generation of catalytic amounts of
Andrieux, Arnold, Bauld, Bauld, Bauld, Bauld, Bauld, Beck, Bellville, Bolskar, Calvente, Chong, Chong, Clarke, Dass, Demaille, Deyrup, Dietz, El-Desoky, Gagne, Geiger, Geiger, Gritzner, Gürtler, Gürtler, Halas, Ledwith, Leitch, LeSuer, Lewis, Lias, Lorenz, Macías-Ruvalcalba, Marquez, Meyer, Mlcoch, Ogibin, Okada, Perkins, Robinson, Salmon, Schmidt, Shono, Smie, Spee, Sun, Timmermans, Tong   +47 more
core   +1 more source

Mechanistic Insights Into the Photosensitizing Properties of the Topical Retinoid Tazarotene

ChemMedChem, Volume 21, Issue 8, 28 April 2026.
Light‐activated retinoids: Tazarotene and its active metabolite tazarotenic acid form long‐lived triplet excited states upon UVA irradiation, generating singlet oxygen and promoting photochemical reactions. These processes correlate with reduced fibroblast viability under light exposure, revealing potential phototoxicity and implications for combined ...
Juan A. Soler‐Orenes, Macarena Dillon, Gemma M. Rodríguez‐Muñiz, Matilde Ansino‐Ortiz, Inmaculada Andreu, Virginie Lhiaubet‐Vallet   +5 more
wiley   +1 more source

Photochemically re-bridging disulfide bonds and the discovery of a thiomaleimide mediated photodecarboxylation of C-terminal cysteines [PDF]

, 2015
Described in this work is a novel method for photochemically manipulating peptides and proteins via the installation of cysteine-selective photoactive tags.
Baker, JR, Chudasama, V, Fletcher, SA, Kossen, H, Nobles, M, Richards, DA, Tedaldi, L, Tinker, A   +7 more
core  

Synthetic Applications and Methodological Developments of Donor-Acceptor Cyclopropanes and Related Compounds [PDF]

, 2016
Donor-acceptor cyclopropanes are convenient precursors to reactive and versatile 1,3-dipoles, and have found application in the synthesis of a variety of carbo- and heterocyclic scaffolds.
O'Connor, Nicholas R., Stoltz, Brian M., Wood, John L.   +2 more
core   +1 more source

Dibenzazepin‐verbrückte Netzwerk‐Polymer‐Phthalocyanine als abbaubare heterogene Photokatalysatoren

Angewandte Chemie, Volume 138, Issue 16, 13 April 2026.
Photodynamische Dibenzazepin‐Brücke wurde in Zink‐ und Kobalt‐Netzwerk‐Polymer‐Phthalocyanine (NP‐Pcs) eingeführt, um abbaubare heterogene Photokatalysatoren zu erhalten. Zum ersten Mal spielt die Bestrahlung mit Licht eine Schlüsselrolle beim „Design, der Verwendung und dem Abbau” von NP‐Pcs.
Erem Ahmetali, Azra Kocaarslan, Vanessa Trouillet, Stefan Heißler, Stefan Bräse   +4 more
wiley   +1 more source

The Total Synthesis of (–)-Scabrolide A [PDF]

, 2020
The first total synthesis of the norcembranoid diterpenoid scabrolide A is disclosed. The route begins with the synthesis of two chiral pool-derived fragments, which undergo a convergent coupling to expediently introduce all 19 carbon atoms of the ...
Hafeman, Nicholas J., Loskot, Steven A., Pritchett, Beau P., Reimann, Christopher E., Stoltz, Brian M., Virgil, Scott C.   +5 more
core  

Optical manipulation of sphingolipid biosynthesis using photoswitchable ceramides [PDF]

, 2019
Ceramides are central intermediates of sphingolipid metabolism that also function as potent messengers in stress signaling and apoptosis. Progress in understanding how ceramides execute their biological roles is hampered by a lack of methods to ...
Adada, Baeyer, Borowiak, Chiantia, D'Angelo, Eisenbraun, Feng, Frank, Frank, Frank, Gaebler, Garner, Garner, Haberkant, Hannun, Holthuis, Honigmann, Huitema, Höglinger, Höglinger, Jain, Kim, Kol, Koval, Leinders-Zufall, Li, Li, Liu, MacHin, McIntosh, Meikle, Mills, Mitsutake, Müller, Nishioka, Ogretmen, Ohira, Ojima, Oppolzer, Park, Peters, Priewisch, Rai, Seike, Sivakumar, Slotte, Strueben, Tafesse, Thiele, Wegner, Yamaoka, Yamashita   +51 more
core   +1 more source

Dibenzazepine Bridged Network Polymeric Phthalocyanines as Degradable Heterogeneous Photocatalysts

Angewandte Chemie International Edition, Volume 65, Issue 16, 13 April 2026.
Dibenzazepine photodynamic bridge has been introduced to zinc and cobalt networks phthalocyanines (NP‐Pcs) to obtain degradable heterogeneous photocatalysts. For the first time, light irradiation plays a key role in “design, use and degradation” of NP‐Pcs.
Erem Ahmetali, Azra Kocaarslan, Vanessa Trouillet, Stefan Heißler, Stefan Bräse   +4 more
wiley   +1 more source

Recent Applications of the Simple Hydrocarbon Cyclooctatetrene as a Starting Material for Complex Molecule Synthesis [PDF]

, 2012
Cyclooctatetraene [COT], a simple non-aromatic cyclic polyene, is capable of undergoing a variety of oxidation and cycloaddition reactions to afford polycyclic structures.
Donaldson, William, Glaeske, Kevin W
core   +2 more sources