Relevant bibliographies by topics / 3-d]pyrimidin-4(3H)-one

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Academic literature on the topic '3-d]pyrimidin-4(3H)-one'

Author: Grafiati
Published: 5 June 2025
Last updated: 2 August 2025

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Journal articles on the topic "3-d]pyrimidin-4(3H)-one"

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Hafez, Hend N., and Abdel-Rhman B. A. El-Gazzar. "Synthesis and evaluation of antitumor activity of new 4-substituted thieno[3,2-d]pyrimidine and thienotriazolopyrimidine derivatives." Acta Pharmaceutica 67, no. 4 (2017): 527–42. http://dx.doi.org/10.1515/acph-2017-0039.

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Abstract 3-Methyl-6-phenyl-2-thioxo-2,3-dihydrothieno[3,2-d]pyrimidin- 4(1H)-one (2), on treatment with phosphorous oxychoride, affored 4-chloro-3-methyl-6-phenyl -thieno[3,2-d]pyrimidine- 2(3H)-thione (3). A series of novel 6-phenyl-thieno[3,2-d]pyrimidine derivatives 4-9 bearing different functional groups were synthesized via treatment of compound 3 with different reagents. On the other hand, compound 2 was used to synthesize ethyl-[(3-methyl-6-phenyl-2-thioxo-2,3-dihydrothieno[ 3,2-d]pyrimidin-4-yl)-oxy]acetate (10), 2-hydrazinyl- -3-methyl-6-phenyl-thieno[3,2-d]pyrimidin-4(3H)-one (11), 3
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2

El-Shahawi, Manal M., and Ahmed K. El-Ziaty. "Enaminonitrile as Building Block in Heterocyclic Synthesis: Synthesis of Novel 4H-Furo[2,3-d][1,3]oxazin-4-one and Furo[2,3-d]pyrimidin-4(3H)-one Derivatives." Journal of Chemistry 2017 (2017): 1–6. http://dx.doi.org/10.1155/2017/5610707.

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2-Amino-4,5-diphenylfuran-3-carbonitrile 1 was utilized as building block for the construction of new furo[2,3-d]pyrimidin-4(3H)-one derivative 2 and 4H-furo[2,3-d][1,3]oxazin-4-one derivative 3 via treatment with acetic anhydride and benzoyl chloride, respectively. The 4H-furo[2,3-d][1,3]oxazin-4-one derivative 3 was transformed into novel furo[2,3-d]pyrimidin-4(3H)-ones 4–8, tetrazolylfuran derivative 10, and furo[3,2-d]imadazolone derivative 11 via reaction with various nitrogen nucleophiles. The structure features of the synthesized compounds were established from their spectral and elemen
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3

Hu, Yang-Gen, Jun Hu, and Hai-Tao Gao. "3-Isopropyl-2-morpholinobenzofuro[3,2-d]pyrimidin-4(3H)-one." Acta Crystallographica Section E Structure Reports Online 63, no. 12 (2007): o4735. http://dx.doi.org/10.1107/s1600536807057662.

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4

Janeba, Zlatko, Noha Maklad, and Morris J. Robins. "Synthesis of 6-(alkoxymethyl)- and 6-(alkylsulfanylmethyl)furo[2,3-d]pyrimidin-2(3H)-one analogues." Canadian Journal of Chemistry 84, no. 4 (2006): 561–68. http://dx.doi.org/10.1139/v06-042.

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Treatment of 6-(hydroxymethyl)furo[2,3-d]pyrimidin-2(3H)-one (2) with 1-iodoalkanes and potassium carbonate resulted in predominant formation of N3 (and minor amounts of O2) alkylated regioisomers. Treatment of the 3-alkyl products (3) with thionyl chloride gave highly reactive 6-chloromethyl intermediates (5). Direct solvolysis of 5 in alcohol solutions (~50 °C) produced 3-alkyl-6-(alkoxymethyl)furopyrimidin-2(3H)-ones (6), whereas extensive decomposition of 5 occurred with added base promoters. Sonication of 5 with sodium thioacetate in acetonitrile gave the air-stable 6-(alkylsulfanylmethyl
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5

EL-Mahdy, Ahmed F. M., Hassan A. H. El-Sherief, and Zainab A. Hozien. "Convenient One-Pot Four-Component Synthesis of 6,8-Disubstituted-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4(3H)-ones via a Triple Mannich Reaction." Australian Journal of Chemistry 72, no. 7 (2019): 542. http://dx.doi.org/10.1071/ch19088.

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An efficient and simple one-pot four-component protocol has been developed and performed for the synthesis of 6,8-disubstituted-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4(3H)-ones, involving a triple Mannich reaction of 6-amino-2-(ethylthio)pyrimidin-4(3H)-one, formaldehyde, primary amines, and alcohols. Secondary amines were also utilised instead of alcohols as Mannich nucleophiles, and a variety of functional groups and electronically varied reaction partners were tolerated. This one-pot reaction facilitated the generation of a library of pyrimido[4,5-d]pyrimidin-4(3H)-ones in very good to
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6

Hamed, Atef A., Hesham F. Bader, and El-Sayed H. El-Ashry. "4′, x-Seco And 4′,x-4′,5′-Diseco C-Nucleosides From 2-Hydrazino-(3H)- Thieno [2,3-D] Pyrimidin-4-Ones." Zeitschrift für Naturforschung B 56, no. 8 (2001): 826–36. http://dx.doi.org/10.1515/znb-2001-0817.

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Cyclization of 2-hydrazino-5,6-dimethyl-3H-thieno[2,3-d]pyrimidin-4-one (1) with acetic acid gave 3,6,7-trimethyl-l,2,4-triazolo[3,4-a]thieno[2,3-d] pyrimidin-5-one (5) whose Dimroth rearrangement gave 2,6,7-trimethyl-l,2,4-triazolo[3,4-a]thieno[2,3-d]pyrimidin-5-one (11). Alternatively, 5 was obtained from the dehydrogenative cyclization of acetaldehyde 5,6- dimethyl-4-3H-oxo-thieno[2,3-d]pyrimidin-2-yl hydrazone (7). Reaction of 1 and 2 with a number of sugars gave the respective hydrazones 19 and 20. Those of the D-glucose exist in the cyclic pyranosyl structure in addition to minor amounts
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7

Kaliendina, S., M. Brynzei, M. Kut, S. M. Sukharev, Е. Ostapchuk та M. Onysko. "Kaliendina S., Brynzei M., Kut M., Sukharev S.M., Ostapchuk Е., Onysko M. REGIOSELECTIVITY OF ALKYLATION OF 2-(THIOPHENE-2-IL)THIENO[2,3 d]PYRIMIDINE-4(3H)-ONE". Scientific Bulletin of the Uzhhorod University. Series «Chemistry» 50, № 2 (2024): 40–45. http://dx.doi.org/10.24144/2414-0260.2023.2.40-45.

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Thieno[2,3-d]pyrimidines are an important class of heterocyclic compounds with a wide range of biological activities. The thieno[2,3-d]pyrimidin-4-one system is of the greatest interest to scientists, as it is one of a large number of possible thienopyrimidine derivatives. The presence of an amide fragment in these molecules allows for the introduction of various substituents via alkylation reactions. On the other hand, the presence of N- and O-nucleophilic centres makes it possible to form different types of alkylation products.
 In the present work, the alkylation reaction of 5,6-dimeth
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Khatamov, Khamroqul, Fozil Saitqulov, Jamshid Ashurov, and Khusnutdin Shakhidoyatov. "3,5,6-Trimethylthieno[2,3-d]pyrimidin-4(3H)-one." Acta Crystallographica Section E Structure Reports Online 68, no. 9 (2012): o2740. http://dx.doi.org/10.1107/s1600536812035416.

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9

Thokchom, Herojit S., Anita D. Nongmeikapam, and Warjeet S. Laitonjam. "Synthesis of fused pyrazolo-, isoxazolo-, pyrimido-, and pyridopyrimidines." Canadian Journal of Chemistry 83, no. 8 (2005): 1056–62. http://dx.doi.org/10.1139/v05-054.

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A systematic study of the synthesis of the 5,7-diaryl-4-oxo-pyrazolo[3,4-d]pyrimidin-6-thiones (3), 2-phenyl-5,7-bis(2′-methylphenyl)-4-oxo-pyrazolo[3,4-d]pyrimidin-6-thiones (4b), 2(3H)-3-phenyl-5,7-diaryl-4-oxo-pyrazolo[3,4-d]pyrimidin-6-thiones (5), 5,7-diaryl-4-oxo-isoxazolo[5,4-d]pyrimidin-6-thiones (7), 3,5,7-triaryl-2,3-dihydro-4-oxo-isoxazalo[5,4-d]pyrimidin-6-thiones (8), 2-amino-6,8-diaryl-5-oxo-pyrimido[4,5-d]pyrimidin-7-thiones (9), 3,4-dihydro-2-amino-4-phenyl-6,8-diaryl-5-oxo-pyrimido[4,5-d]pyrimidin-7-thiones (10), 3-cyano-6,8-diaryl-2,5-dioxo-pyrido[2,3-d]pyrimidin-7-thiones (1
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10

Zheng, Aihua, Jing Xu, and Yang-Gen Hu. "2-Cyclohexylamino-5,6-dimethyl-3-phenyl-3H-thieno[2,3-d]pyrimidin-4(3H)-one." Acta Crystallographica Section E Structure Reports Online 62, no. 9 (2006): o3710—o3711. http://dx.doi.org/10.1107/s1600536806030248.

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Book chapters on the topic "3-d]pyrimidin-4(3H)-one"

1

"8-Carbamoyl-3-methylimidazo(5,1-d)-1,2,3,5-tetrazin-4(3H)-one." In Encyclopedia of Cancer. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-46875-3_100065.

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