Relevant bibliographies by topics / Photochemical intramolecular cyclization

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Academic literature on the topic 'Photochemical intramolecular cyclization'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Photochemical intramolecular cyclization"

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Samiran, Kar, and Lahiri Saswati. "Photochemical intramolecular cyclization routes to heterocycles." Journal of Indian Chemical Society Vol. 76, Nov-Dec 1999 (1999): 607–10. https://doi.org/10.5281/zenodo.5862417.

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Department of Organic Chemistry, Indian Association for the Cultivation of Science, Calcutta-700 032, India <em>Manuscript received 27 August 1999</em> 1-Aryl-3-(2-azidoaryl)prop-2-en-1-ones have been prepared from <em>o</em>-nitro aromatic aldehydes. The 2-aroylindole derivatives are easily prepared from these derivatives in a tandem reaction sequence in moderate yields. Photolytic process is found to be much more facile than the thermal process in this transformation. Naphthofuran derivatives have been prepared by metalcatalyzed intramolecular photocyclizations of 1-aryl-3-(2-methoxy-1-napht
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Kiyooka, Syunichi, Yuichi Kaneko, Hideaki Matsue, Maki Hamada, and Ryoji Fujiyama. "Photochemical intramolecular cyclization reactions of acylgermanes." Journal of Organic Chemistry 55, no. 21 (1990): 5562–64. http://dx.doi.org/10.1021/jo00308a010.

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Tavakoli, Amirrasoul, and Jung-Hyun Min. "Photochemical modifications for DNA/RNA oligonucleotides." RSC Advances 12, no. 11 (2022): 6484–507. http://dx.doi.org/10.1039/d1ra05951c.

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Photoconvertible groups (PG) can be incorporated into an oligonucleotide to undergo various irreversible and reversible light-induced reactions such as cleavage, crosslinking, isomerization, and intramolecular cyclization reactions.
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Fang, Y., and G. K. Tranmer. "Continuous flow photochemistry as an enabling synthetic technology: synthesis of substituted-6(5H)-phenanthridinones for use as poly(ADP-ribose) polymerase inhibitors." MedChemComm 7, no. 4 (2016): 720–24. http://dx.doi.org/10.1039/c5md00552c.

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Methods utilizing continuous flow photochemistry have been developed for the synthesis of phenanthridinones via an intramolecular photochemical cyclization reaction in yields up to 99%, as a means to generate poly(ADP-ribose) polymerase inhibitors.
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Arimura, Junya, Tsutomu Mizuta, Yoshikazu Hiraga, and Manabu Abe. "Formation of macrocyclic lactones in the Paternò–Büchi dimerization reaction." Beilstein Journal of Organic Chemistry 7 (February 28, 2011): 265–69. http://dx.doi.org/10.3762/bjoc.7.35.

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Furan-2-ylmethyl 2-oxoacetates 1a,b, in which the furan ring and the carbonyl moiety were embedded intramolecularly, were synthesized from commercially available furan-2-ylmethanol and their photochemical reaction (hν &gt; 290 nm) was investigated. Twelve-membered macrocyclic lactones 2a,b with C i symmetry including two oxetane-rings, which are the Paternò–Büchi dimerization products, were isolated in ca. 20% yield. The intramolecular cyclization products, such as 3-alkoxyoxetane and 2,7-dioxabicyclo[2.2.1]hept-5-ene derivatives, were not detected in the photolysate.
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Kar, Samiran, and Saswati Lahiri. "ChemInform Abstract: Photochemical Intramolecular Cyclization Routes to Heterocycles." ChemInform 31, no. 40 (2000): no. http://dx.doi.org/10.1002/chin.200040115.

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Fisyuk, Alexander S., Evgeny B. Ulyankin, Yulia P. Bogza, et al. "Photochemical Synthesis of 4H-Thieno[3,2-c]chromene and Their Optical Properties." Synlett 32, no. 08 (2021): 790–94. http://dx.doi.org/10.1055/a-1392-2209.

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Abstract4-{[(2-Iodoaryl)oxy]methyl}thiophene-2-carbaldehydes and 5-iodo-4-(aryloxymethyl)thiophene-2-carbaldehydes were obtained by the reaction of phenols with 4-(chloromethyl)thiophene-2-carbaldehyde or its 5-iodo analogue, respectively. These products underwent ring closure upon irradiation with UV light (254 nm) to form the corresponding 4H-thieno[3,2-c]chromene-2-carbaldehydes in high yield. The formation of intermediate radical species was detected by EPR spectroscopy. Comparative analysis of ring-closure methods showed that photochemical cyclization of 5-iodo-4-(aryloxymethyl)thiophene-
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da Silva, Gustavo Piva, Akbar Ali, Rodrigo César da Silva, Hao Jiang, and Márcio W. Paixão. "Tris(trimethylsilyl)silane and visible-light irradiation: a new metal- and additive-free photochemical process for the synthesis of indoles and oxindoles." Chemical Communications 51, no. 82 (2015): 15110–13. http://dx.doi.org/10.1039/c5cc06329a.

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Terada, Masahiro, Zen Iwasaki, Ryohei Yazaki, Shigenobu Umemiya та Jun Kikuchi. "Development of a flow photochemical process for a π-Lewis acidic metal-catalyzed cyclization/radical addition sequence: in situ-generated 2-benzopyrylium as photoredox catalyst and reactive intermediate". Beilstein Journal of Organic Chemistry 20 (13 серпня 2024): 1973–80. http://dx.doi.org/10.3762/bjoc.20.173.

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A flow photochemical reaction system for a π-Lewis acidic metal-catalyzed cyclization/radical addition sequence was developed, which utilizes in situ-generated 2-benzopyrylium intermediates as the photoredox catalyst and electrophilic substrates. The key 2-benzopyrylium intermediates were generated in the flow reaction system through the intramolecular cyclization of ortho-carbonyl alkynylbenzene derivatives by the π-Lewis acidic metal catalyst AgNTf2 and the subsequent proto-demetalation with trifluoroacetic acid. The 2-benzopyrylium intermediates underwent further photoreactions with benzylt
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KIYOOKA, S., Y. KANEKO, H. MATSUE, M. HAMADA, and R. FUJIYAMA. "ChemInform Abstract: Photochemical Intramolecular Cyclization Reactions of Acylgermanes (I), (III), (V)." ChemInform 22, no. 6 (2010): no. http://dx.doi.org/10.1002/chin.199106223.

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Book chapters on the topic "Photochemical intramolecular cyclization"

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Taber, Douglass F. "The Chen Synthesis of (-)-Nakiterpiosin." In Organic Synthesis. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199965724.003.0094.

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(-)-Nakiterpiosin 3, isolated from the thin encrusting sponge Terpios hoshinota, has an IC50 against murine P388 leukemia cells of 10 ng/mL. Chuo Chen of UT Southwestern Medical Center developed (J. Am. Chem. Soc. 2010, 132, 371) a practical synthetic route to 3 based on the convergent coupling of 1 and 2. The preparation of 1 was based on the intramolecular [4 + 2] cyclization of the furan 9, prepared by Friedel-Crafts acylation of furan 4 with maleic anhydride 5 . The absolute confi guration of the secondary alcohol was set by Noyori reduction, using sodium formate as the hydride source. The
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Taber, Douglass. "Stereoselective C-N Ring Construction." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0054.

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Ryoichi Kuwano of Kyushu University showed (J. Am. Chem. Soc. 2008, 130, 808) that diastereomerically and enantiomerically pure pyrollidines such as 2 could be prepared by hydrogenation of the corresponding pyrrole. Victor S. Martín of Universidad de la Laguna found (Organic Lett. 2008, 10, 2349) that the stereochemical outcome of the pyrrolidine-forming Nicholas cyclization could be directed by the protecting group on the N. Jianbo Wang of Peking University established (J. Org. Chem. 2008, 73, 1971) a convenient route to diazo esters such as 6. N-H insertion led to the pyrrolidine, which Zhen
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Taber, Douglass F. "Other Methods for C–C Ring Construction: Pinolinone (Bach), Agelastatin A (Batey), Panaginsene (Lee), Salvileucalin D, Salvileucalin C (Ding), ent-Codeine (Hudlicky), Walsucochin B (Xie/Shi)." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0081.

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Thorsten Bach of the Technische Universität München used (Chem. Commun. 2014, 50, 3353) the chiral medium-mediated photochemical 2+2 cycloaddition that he devel­oped to prepare 3 by combining 1 with 2. Oxidative cleavage led to (−)-pinolinone 4. Robert A. Batey of the University of Toronto rearranged (Angew. Chem. Int. Ed. 2013, 52, 10862) furfural 5 in the presence of 6 to give the enone 7. Acylation fol­lowed by intramolecular conjugate addition delivered agelastatin A 8. Hee-Yoon Lee of KAIST prepared (Org. Lett. 2014, 16, 2466) the tosylhydrazone Na salt 9 from citronellal. Thermolysis led
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Conference papers on the topic "Photochemical intramolecular cyclization"

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Budruev, Andrei, Olga Kuzmicheva, and Darja Sinjagina. "Synthesis of 2,1-benzisoxazol-3(1H)-one by intramolecular photochemical cyclization of 2-azidobenzoic acid." In The 15th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2011. http://dx.doi.org/10.3390/ecsoc-15-00584.

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