Synthesis of Highly Fluorescent Thiazole Fused Benzo[a] Carbazoles by Sunlight Driven Photocyclization of Indolylthiazoles
Sign Up to like & getrecommendations! Published in 2024 at "European Journal of Organic Chemistry"
DOI: 10.1002/ejoc.202400972
Abstract: Herein we report for the first time a sunlight‐driven, irreversible photocyclization reaction of indole‐linked trisubstituted thiazoles, for the synthesis of highly fluorescent thiazole‐fused benzo[a]carbazoles using a mixture of solvents (CH3CN: DMSO; 3 : 1). Ring opening of… read more here.
Keywords: fluorescent thiazole; synthesis highly; photocyclization; sunlight driven ... See more keywords
Anaerobic photocyclization of ortho‐dialkylamino substituted stiff‐stilbenes
Sign Up to like & getrecommendations! Published in 2024 at "Journal of the Chinese Chemical Society"
DOI: 10.1002/jccs.202300427
Abstract: The photocyclization of diarylethenes toward polycyclic aromatic hydrocarbons and analogs has been well‐documented. However, stiff‐stilbene was reported to be inactive, and examples of photocyclization‐induced deamination remain unknown. Here, we report that ortho‐(N,N‐dimethylamino)‐stiff‐stilbene (1a) undergoes efficient… read more here.
Keywords: photocyclization; ortho dialkylamino; photocyclization ortho; anaerobic photocyclization ... See more keywords
Unexpected regioselectivity in the photocyclization of a chiral 2,3-bisbenzylidenesuccinate, leading to a podophyllotoxin related cyclolignan
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Photochemistry and Photobiology A: Chemistry"
DOI: 10.1016/j.jphotochem.2018.06.023
Abstract: Abstract The Stobbe condensation between 3′,4′,5′-trimethoxyacetophenone and a benzylidenesuccinate derived from piperonal gave the Z,E-2,3-bisbenzylidenesuccinate as the only product. Such regioselectivity was explained by considering the Newman’s projections of the transition states of this reaction.… read more here.
Keywords: regioselectivity photocyclization; photocyclization chiral; regioselectivity; cyclolignan ... See more keywords
Catalytic Enantioselective 6π Photocyclization of Acrylanilides
Sign Up to like & getrecommendations! Published in 2022 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.2c09267
Abstract: Controlling absolute stereochemistry in catalytic photochemical reactions is generally challenging owing to high rates of background reactivity. Successful strategies broadly rely on selective excitation of the reaction substrate when associated with a chiral catalyst. Recent… read more here.
Keywords: photocyclization acrylanilides; enantioselective photocyclization; catalytic enantioselective; energy ... See more keywords
Free Radical-Mediated Intramolecular Photocyclization of AIEgens Based on 2,3-Diphenylbenzo[b]thiophene S,S-Dioxide.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.2c12738
Abstract: As an important category of photochemical reactions, photocyclization is regarded as an ideal entry point for building intelligent photoresponsive materials. Herein, a series of aggregation-induced emission luminogens (AIEgens) with sensitive photoresponsive behavior are developed based… read more here.
Keywords: thiophene dioxide; diphenylbenzo thiophene; mediated intramolecular; based diphenylbenzo ... See more keywords
Theoretical exploration of 4π-Photocyclization Mechanism of α-Tropone Derivatives
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DOI: 10.1039/d4nj03442b
Abstract: In this study, we employed ab initio methods to investigate the 4π-photocyclization process of substituted α-tropones. Our findings suggest that the initial stages of this reaction occur from low-energy excited... read more here.
Keywords: theoretical exploration; tropone derivatives; exploration photocyclization; mechanism tropone ... See more keywords
Solvent-controlled 4CzBnBN-catalyzed Intramolecular Photocyclization and Dehydrogenative Photocyclization of Indolecarboxamides for the switchable synthesis of indoloquinolones and dihydroindoloquinolones
Sign Up to like & getrecommendations! Published in 2025 at "Organic Chemistry Frontiers"
DOI: 10.1039/d5qo00185d
Abstract: Indoloquinolones and dihydroindoloquinolones are in-demand motifs in medicinal chemistry, yet methods for the controlled synthesis both molecules are scarce. We detail the solvent-controlled switchable photocyclization and dehydrogenative photocyclization of heterocyclic... read more here.
Keywords: chemistry; indoloquinolones dihydroindoloquinolones; dehydrogenative photocyclization; photocyclization dehydrogenative ... See more keywords