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Journal articles on the topic 'Trione'

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Published: 4 June 2025

Last updated: 1 August 2025

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1

Collins, DJ, та NE Krause. "Monoacetals Derived From 12-α-Hydroxyandrosta-1,4-diene-3,17-dione and Androsta-1,4-diene-3,12,17-trione". Australian Journal of Chemistry 41, № 6 (1988): 985. http://dx.doi.org/10.1071/ch9880985.

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Conversion of 12α-hydroxyandrosta-1,4-diene-3,17-dione (5) into the corresponding 17-cyclic ethylene acetal (1) was accompanied by acid- catalysed attack of ethylene glycol at C3 to give 17,17-ethylenedioxy- 3-(2′-hydroxyethoxy)-1-methylestra-1,3,5(10)-trien-12a-ol (2), which was the major product with prolonged reaction times. Exchange dioxolanation of androsta-1,4-diene-3,12,17-trione (8), prepared by Jones oxidation of (5), gave selectively the 12-monoacetal (9): the regioisomeric 17-monoacetal (4) was obtained by oxidation of the hydroxy acetal (1) with chromium trioxide in pyridine. The t

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2

Rahman, MM, ME Halim, SM Ahmed, K. Akhter, and UKR Romman. "Studies on the conversion of ketones of heterocyclic spiro compounds having barbituric acid moieties into oxime derivatives." Bangladesh Journal of Scientific and Industrial Research 48, no. 1 (2013): 7–12. http://dx.doi.org/10.3329/bjsir.v48i1.15383.

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Five oxime derivatives 7, 11-bis-(4-chlorophenyl)-3-thioxo-2,4-diazaspiro[5,5]undecane-1,5,9-trione-9-oxime (2a), 7,11-bis-(4- methoxyphenyl)-2,4-diazaspiro[5,5]undecane-1,3,5,9-tetraone-9-oxime (2b), 7,11-diphenyl-2,4-diazaspiro[5,5]undecane-1,3,5,9-tetraone- 9-oxime (2c), 7,11-bis-(4-methoxyphenyl)-3-thioxo-2,4-diazaspiro[5,5]undecane-1,5,9-trione-9-oxime (2d), 7,11-diphenyl-3-thioxo-2,4- diazaspiro[5,5]undecane-1,5,9-trione-9-oxime (2e) were synthesized from the corresponding 7,11-diaryl-2,4-diazaspiro[5,5]undecane-3- oxo (or thioxo)-1,5,9-triones (1a-e) with hydroxylaminehydrogenchloride i

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3

Avendaño, Carmen, Pilar López-Alvarado, José María Pérez, et al. "Structure-Antitumor Activity Relationships of Aza- and Diaza-Anthracene-2,9,10-Triones and Their Partially Saturated Derivatives." Molecules 29, no. 2 (2024): 489. http://dx.doi.org/10.3390/molecules29020489.

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The 1,8-Diazaanthracene-2,9,10-triones, their 5,8-dihydro derivatives, and 1,8-diazaanthracene-2,7,9,10-tetraones, structurally related to the diazaquinomycin family of natural products, were synthesized in a regioselective fashion employing Diels–Alder strategies. These libraries were studied for their cytotoxicity in a variety of human cancer cell lines in order to establish structure–activity relationships. From the results obtained, we conclude that some representatives of the 1,8-diazaanthracene-2,9,10-trione framework show potent and selective cytotoxicity against solid tumors. Similar f

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4

Stasevych, Maryna, Svitlana Sabat, Rostyslav Musyanovych, and Volodymyr Novikov. "Synthesis of condensed S-, N- containing heterocyclic systems on the base of 2-amino-4,9-dioxo-4,9-dihydronaphto[2,3-b]thiophene-3-ethylcarboxilate." Chemistry & Chemical Technology 2, no. 3 (2008): 157–62. http://dx.doi.org/10.23939/chcht02.03.157.

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Synthesis of a new 2-aryl-4Н-naphtho[2’,3’,4,5]thieno[2,3-d][1,3]oxazine-4,5,10-triones, 2-arylnaphtho[2’,3’,4,5]thieno[2,3-d][1,3]pyrimidine-4,5,10(3Н)-triones, 3-phenyl naphtho[2’,3’,4,5]thieno[2,3-d][1,3]pyrimidine-2,4,5,10(1Н, 3Н)-tetraone and 2-thioxo-2,3-dyhydronaphth[2’,3’,4,5]thieno[2,3-d]pyrimidine-4,5,10(1Н)-trione was carried out. The mechanism of 2-aryl-4Н-naphtho[2’,3’,4,5]thieno[2,3-d][1,3]oxazine-4,5,10-triones formation was suggested.

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5

Choura, Emna, Fares Elghali, Paul J. Bernard, et al. "Benzochromenopyrimidines: Synthesis, Antiproliferative Activity against Colorectal Cancer and Physicochemical Properties." Molecules 27, no. 22 (2022): 7878. http://dx.doi.org/10.3390/molecules27227878.

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Ten new differently substituted 3-benzyl-5-aryl-3,5-dihydro-4H-benzo[6,7]chromeno[2,3-d]pyrimidin-4,6,11-triones 3 were synthesized by a simple and cost-efficient procedure in a one-pot, three-component reaction from readily available ethyl 2-amino-4-aryl-5,10-dioxo-5,10-dihydro-4H-benzo[g]chromene-3-carboxylates, benzylamine and triethyl orthoformate under solvent- and catalyst-free conditions. All the new compounds were screened for their antiproliferative activity against two colorectal-cancer-cell lines. The results showed that the compounds 3-benzyl-5-phenyl-3,5-dihydro-4H-benzo[6,7]chrom

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6

Bartke, Michael, and Wolfgang Pfleiderer. "Pteridines, XC Syntheses, Oxidations, Properties, and Reactions of 2-Thiopteridine-4,6, 7- trione Derivatives." Pteridines 1, no. 2 (1989): 83–90. http://dx.doi.org/10.1515/pteridines.1989.1.2.83.

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Summary A new efficient synthesis for 2-thiopteridine-4,6,7-triones (6-10, 15) has been found in the condendation of the appropriate 5,6-diaminopyrimidine (1-5, 14) with oxalic acid in DMF. Analogous condensations with dimethyl oxalate led to S-alkylation probably via an intermediate O-methylation of the DMF. 8-Methyl-2- thiopteridine-4,6,7-trione (10) shows a ring contraction to 9-methyl-2-thioxanthine (13) on base treatment. Oxidations by H20 2 and KMn04 respectively lead to the corresponding 2-sulfinate 22 and the 2-sulfonates 17 -19. Oxidative desulfurization takes place in formic acid wit

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7

Talhi, Oualid, José A. Fernandes, Diana C. G. A. Pinto, Artur M. S. Silva, and Filipe A. Almeida Paz. "1,3-Dicyclohexylimidazolidine-2,4,5-trione." Acta Crystallographica Section E Structure Reports Online 67, no. 12 (2011): o3243. http://dx.doi.org/10.1107/s1600536811046253.

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8

Hanson, James R., A. Christy Hunter та Sandrine Roquier. "The Preparation of Some 13α-Androstanes". Collection of Czechoslovak Chemical Communications 63, № 10 (1998): 1646–54. http://dx.doi.org/10.1135/cccc19981646.

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9

Brachet-Cota, Adriana L., and Gerardo Burton. "An Improved Preparation of 11,19-Oxidopregn-4-ene-3,20-dione and 6,19-Oxidopregn-4-ene-3,11,20-trione." Zeitschrift für Naturforschung B 45, no. 5 (1990): 711–16. http://dx.doi.org/10.1515/znb-1990-0521.

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A synthesis of 11,19-oxidopregn-4-ene-3,20-dione and 6,19-oxidopregn-4-ene-3,11,20-trione is described starting from pregn-4-ene-3,11,20-trione and via the common intermediate 3β,20β-diacetyloxy-5α-bromo-6,19-oxidopregnan-11-one, in 30 and 32% yield, respectively.

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10

Blackman, AJ, CE Ralph, BW Skelton, and AH White. "Two Sulfur-Containing Isoquinoline Alkaloids From the Bryozoan Biflustra perfragilis." Australian Journal of Chemistry 46, no. 2 (1993): 213. http://dx.doi.org/10.1071/ch9930213.

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The bryozoan Biflustra perfragilis collected in Bass Strait has yielded two novel sulfur-containing isoquinoline alkaloids: 2-methyl-6,7-di(methylthio)isoquinoline-3,5,8 (2H)-trione (1a) and 2-methyl-6-methylthioisoquinoline-3,5,8(2H)trione (1b). A single-crystal X-ray study supports the assignment of (1a).

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11

Di Mola, Antonia, Consiglia Tedesco, and Antonio Massa. "Metal-Free Air Oxidation in a Convenient Cascade Approach for the Access to Isoquinoline-1,3,4(2H)-triones." Molecules 24, no. 11 (2019): 2177. http://dx.doi.org/10.3390/molecules24112177.

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Herein we describe a very useful application of the readily available trifunctional aromatic ketone methyl-2-(2-bromoacetyl)benzoate in reactions with primary amines. An unexpected in situ air oxidation that follows a cascade process allowed the access to a series of isoquinoline-1,3,4(2H)-triones, a class of heterocyclic compounds of great interest containing an oxygen-rich heterocyclic scaffold. A modification of the original protocol, utilizing a Staudinger reaction in the presence of trimethylphosphine, was necessary for the synthesis of Caspase inhibitor trione with free NH group.

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12

Fazldeen, H. "Oxidation of Isomuellitol and Hexahydromuellitol With Chromium Trioxide." Australian Journal of Chemistry 40, no. 5 (1987): 999. http://dx.doi.org/10.1071/ch9870999.

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Chromate oxidation of isomuellitol (2) led cleanly to the production of a cyclic trione , 2,2,9,9,15,15-hexamethyl- 1,8,14-trioxatrispiro [4.1.4.1.4.l]octadecane-6,12,18-trione (4), but the product derived from hexahydromuellitol (3) was an unexpected γ-lactone, 4-hydroxy-2,4-bis(3′-methylbutyl )-3-(4″-methyl-1″-oxopentyloxy)-5-oxotetrahydrofuran-2-carboxylic acid (5).

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13

Anthony, A., M. Jaskólski, and A. Nangia. "Androst-4-ene-3,6,17-trione." Acta Crystallographica Section C Crystal Structure Communications 55, no. 5 (1999): 787–89. http://dx.doi.org/10.1107/s0108270199000517.

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14

Hoffmann, H. M. R., Angela Walenta, Ulrike Eggert, and Dietmar Schomburg. "Trispiro[2.1.2.1.2.1]dodecane-4,8,12-trione." Angewandte Chemie International Edition in English 24, no. 7 (1985): 607–8. http://dx.doi.org/10.1002/anie.198506071.

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15

Hanson, James R., Ismail Kiran, Natheer F. Masarweh, and Cavit Uyanik. "Preparation of Androst-5-ene-4,7,17-trione and A-Norandrost-5-ene-3,7,17-trione." Journal of Chemical Research, no. 9 (1998): 493. http://dx.doi.org/10.1039/a803764g.

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16

Vasilieva, Nadezhda V., Irina G. Irtegova, Vladimir A. Loskutov, and Leonid A. Shundrin. "Electrochemical reduction and radical anions of benzo[b]thioxanthene-6,11,12-trione and thioxanthene-1,4,9-trione." Mendeleev Communications 22, no. 2 (2012): 111–13. http://dx.doi.org/10.1016/j.mencom.2012.03.021.

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17

Chen, Hong-Yu, Qi Fang, Gang Xue, and Wen-Tao Yu. "4,5-Dimethoxycyclopent-4-ene-1,2,3-trione." Acta Crystallographica Section E Structure Reports Online 61, no. 8 (2005): o2696—o2698. http://dx.doi.org/10.1107/s1600536805023068.

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18

Jones, P. G., B. Ahrens, T. Höpfner, and H. Hopf. "2,4,6-Tris(diazo)cyclohexane-1,3,5-trione." Acta Crystallographica Section C Crystal Structure Communications 53, no. 6 (1997): 783–86. http://dx.doi.org/10.1107/s0108270197002114.

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19

Parvez, M., N. Sultana, T. B. Sarfaraz, and S. A. Husain. "7-Oxaspiro[5.9]pentadecane-1,8,13-trione." Acta Crystallographica Section C Crystal Structure Communications 54, no. 6 (1998): 789–90. http://dx.doi.org/10.1107/s0108270197019847.

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20

Ivanova, N. A., K. S. Kislitsina, and M. S. Miftakhov. "Synthesis of 3,5-dichlorocyclopentane-1,2,4-trione." Russian Journal of Organic Chemistry 46, no. 12 (2010): 1885–87. http://dx.doi.org/10.1134/s1070428010120183.

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21

Aman, Farhana, Waseeq Ahmad Siddiqui, Adnan Ashraf та M. Nawaz Tahir. "2,3-Dihydro-1λ6,2-benzothiazine-1,1,4-trione". Acta Crystallographica Section E Structure Reports Online 68, № 5 (2012): o1306. http://dx.doi.org/10.1107/s1600536812013827.

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22

Vega, Andrés, Oney Ramirez-Rodríguez, Maximiliano Martínez-Cifuentes, Andrés Ibañez, and Ramiro Araya-Maturana. "8,8-Diethyl-1,4,5,8-tetrahydronaphthalene-1,4,5-trione." Acta Crystallographica Section E Structure Reports Online 65, no. 2 (2009): o345. http://dx.doi.org/10.1107/s1600536809001755.

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23

Hanson, James R., Ismail Kiran, Natheer F. Masarweh, and Cavit Uyanik. "ChemInform Abstract: Preparation of Androst-5-ene-4,7,17-trione and A-Norandrost-5-ene-3,7,17-trione." ChemInform 30, no. 15 (2010): no. http://dx.doi.org/10.1002/chin.199915226.

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24

Al-Sheikh, Ahmad, Kamal Sweidan, Norbert Kuhn, Cäcilia Maichle-Mößmer, and Manfred Steimann. "Elimination of a Thiomethyl Substituent from an Anionic 5-Methylenebarbituric Acid Derivative by Oxidation and Substitution." Zeitschrift für Naturforschung B 64, no. 3 (2009): 307–12. http://dx.doi.org/10.1515/znb-2009-0309.

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Triethylammonium 5-[(1,3-dimethyl-2,4,6-trioxo-tetrahydropyrimidin-5(6H)-ylidene)-(methylthio) methyl]-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-olate (5), obtained from 5-[bis (methylthio)methylene]-1,3-dimethyl-2,4,6(1H,3H,5H)-pyrimidinetrione (2) and 1,3-dimethylbarbituric acid in the presence of triethylamine, is protonated by methanesulfonic acid to give 5,5ʹ-(methylthiomethanediylidene)bis(1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-trione) (6) in good yield. Compound 6 is oxidized in two steps by m-chloroperbenzoic acid to give 5,5ʹ- (methylsulfinylmethanediylidene)bis(1,3-dimethy

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25

Ghalib, Raza Murad, C. S. Chidan Kumar, Rokiah Hashim, Othman Sulaiman, and Hoong-Kun Fun. "Crystal structure of 2-(1,3-dioxoindan-2-yl)isoquinoline-1,3,4-trione." Acta Crystallographica Section E Crystallographic Communications 71, no. 1 (2015): o6—o7. http://dx.doi.org/10.1107/s2056989014025997.

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In the title isoquinoline-1,3,4-trione derivative, C18H9NO5, the five-membered ring of the indane fragment adopts an envelope conformation with the nitrogen-substituted C atom being the flap. The planes of the indane benzene ring and the isoquinoline-1,3,4-trione ring make a dihedral angle of 82.06 (6)°. In the crystal, molecules are linked into chains extending along thebcplaneviaC—H...O hydrogen-bonding interactions, enclosingR22(8) andR22(10) loops. The chains are further connected by π–π stacking interations, with centroid-to-centroid distances of 3.9050 (7) Å, forming layers parallel to t

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26

Barton, Derek H. R., and Dario Doller. "The oxidation of progesterone under GoAggIII conditions." Collection of Czechoslovak Chemical Communications 56, no. 5 (1991): 984–90. http://dx.doi.org/10.1135/cccc19910984.

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The oxidation of pregn-4-ene-3,20-dione (progesterone) by the GoAggIII system (aqueous hydrogen peroxide, ferric chloride, picolinic acid in pyridine-acetic acid solution) has been investigated. Two tri-keto derivatives were isolated and identified as pregn-4-ene-3,6,20-trione and pregn-4-ene-3,12,20-trione. The third major product isolated was identified as the unstable 5α-formyl-A-nor-pregnane-3,20-dione, which deformylated spontaneously to A-nor-5β-pregnane-3,20-dione. A mechanism for the A-ring contraction is proposed, based upon the participation of a carbon-Fe(V) intermediate.

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27

Ma, Xue-Qin, Hua-Jie Zhang, Ya-Hui Zhang та ін. "Novel irreversible caspase-1 inhibitor attenuates the maturation of intracellular interleukin-1β". Biochemistry and Cell Biology 85, № 1 (2007): 56–65. http://dx.doi.org/10.1139/o06-149.

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. Caspase-1, the most efficient enzyme in processing the proinflammatory cytokines interleukin 1β and interleukin 18 in humans, is associated with inflammatory diseases such as rheumatoid arthritis, osteoarthritis, and some neuronal diseases. We previously reported that isoquinoline-1,3,4-trione and its derivatives are novel caspase-3 inhibitors that could attenuate apoptosis in vitro and in vivo. Here we report a novel derivative of isoquinoline-1,3,4-trione that is highly potent in inhibiting caspase-1 activity in an irreversible and slow-binding manner, thus inhibiting cellular caspase-1 ac

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28

Martins, Felipe Terra, Lauro June Queiroz Maia, Gisane Gasparotto, et al. "Phthalazine-trione as a blue-green light-emitting moiety: crystal structures, photoluminescence and theoretical calculations." New Journal of Chemistry 43, no. 3 (2019): 1313–21. http://dx.doi.org/10.1039/c8nj02976h.

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29

Ren, Xiaoli, Yifei Ling, and Jun Luo. "Synthesis of Bicyclo[3.3.1]nonane-2,6,9-trione." Chinese Journal of Organic Chemistry 34, no. 2 (2014): 376. http://dx.doi.org/10.6023/cjoc201309009.

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30

Yang, De-Li, Jia-Rong Li, Hong-Yan Lu, Pan Zhang, and Da-Xin Shi. "A Facile Synthesis of Imidazolidine-2,4,5-Trione." Journal of Chemical Research 38, no. 10 (2014): 625–26. http://dx.doi.org/10.3184/174751914x14116560440865.

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31

Khan, Muhammad Naeem, M. Nawaz Tahir, Misbahul Ain Khan, Salma Rehman, and Abdul Qayyum Ather. "5H-Thiochromeno[2,3-b]pyridine-5,10,10-trione." Acta Crystallographica Section E Structure Reports Online 66, no. 10 (2010): o2673—o2674. http://dx.doi.org/10.1107/s1600536810038171.

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32

Talhi, Oualid, José A. Fernandes, Diana C. G. A. Pinto, Artur M. S. Silva, and Filipe A. Almeida Paz. "1,3-Dicyclohexylimidazolidine-2,4,5-trione: a second polymorph." Acta Crystallographica Section E Structure Reports Online 68, no. 11 (2012): o3233—o3234. http://dx.doi.org/10.1107/s1600536812043619.

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33

Nie, Qiang, Jingkang Wang, Shi Wang та Meijing Zhang. "16α,17-Epoxypregn-4-ene-3,11,20-trione". Acta Crystallographica Section E Structure Reports Online 61, № 2 (2005): o398—o399. http://dx.doi.org/10.1107/s1600536805001443.

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34

Siddiqui, Waseeq Ahmad, Saeed Ahmad, Islam Ullah Khan, Hamid Latif Siddiqui, and Masood Parvez. "2-Chloromethyl-1,2-benzisothiazole-1,1,3(2H)-trione." Acta Crystallographica Section E Structure Reports Online 63, no. 10 (2007): o4116. http://dx.doi.org/10.1107/s1600536807044923.

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35

Fan, Da-He. "1-Phenyl-4-(triphenylphosphanylidene)pyrrolidine-2,3,5-trione." Acta Crystallographica Section E Structure Reports Online 64, no. 3 (2008): o570. http://dx.doi.org/10.1107/s1600536808003565.

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36

Lee, Hyun-Jung, So-Young Park, Jin Sung Kim, Hyun Min Song, Myung-Eun Suh, and Chong-Ock Lee. "Synthesis and cytotoxicity evaluation of pyridin[2,3-f]indole-2,4,9-trione and benz[f]indole-2,4,9-trione derivatives." Bioorganic & Medicinal Chemistry 11, no. 22 (2003): 4791–96. http://dx.doi.org/10.1016/j.bmc.2003.08.005.

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37

Han, Tian-Jiao, Min-Can Wang, and Guang-Jian Mei. "2-Indolymethanols as 4-atom-synthons in oxa-Michael reaction cascade: access to tetracyclic indoles." Chemical Communications 57, no. 71 (2021): 8921–24. http://dx.doi.org/10.1039/d1cc03653j.

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38

Hynes, Michael J., and Dermot F. Kelly. "Kinetics and mechanisms of the reactions of copper(II) with heptane-2,4,6-trione, 1-phenylhexane-1,3,5-trione and 1,5-diphenylpentane-1,3,5-trione in methanol-water (70:30 vol./vol.) solution." Inorganica Chimica Acta 188, no. 2 (1991): 243–49. http://dx.doi.org/10.1016/s0020-1693(00)80378-3.

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39

Lozynskyi, Andrii, Julia Senkiv, Iryna Ivasechko, et al. "1,4-Naphthoquinone Motif in the Synthesis of New Thiopyrano[2,3-d]thiazoles as Potential Biologically Active Compounds." Molecules 27, no. 21 (2022): 7575. http://dx.doi.org/10.3390/molecules27217575.

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A series of 11-substituted 3,5,10,11-tetrahydro-2H-benzo[6,7]thiochromeno[2,3-d][1,3]thiazole-2,5,10-triones were obtained via hetero-Diels-Alder reaction of 5-alkyl/arylallylidene/-4-thioxo-2-thiazolidinones and 1,4-naphthoquinones. The structures of newly synthesized compounds were established by spectral data and a single-crystal X-ray diffraction analysis. According to U.S. NCI protocols, compounds 3.5 and 3.6 were screened for their anticancer activity; 11-Phenethyl-3,11-dihydro-2H-benzo[6,7]thiochromeno[2,3-d]thiazole-2,5,10-trione (3.6) showed pronounced cytotoxic effect on leukemia (Ju

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40

Zhong, Baoyun, Shengli Li та Guifang Chen. "Triethylammonium (indane-1,2,3-trione 1,2-dioximato-κ2N1,O2)(indane-1,2,3-trione 2-oximato 1-oxime-κ2N1,O2)nickel(II)". Acta Crystallographica Section E Structure Reports Online 68, № 4 (2012): m421. http://dx.doi.org/10.1107/s1600536812010458.

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In the title compound, (C6H16N)[Ni(C9H4N2O3)(C9H5N2O3)], the NiIIion is four-coordinated by two N atoms and two O atoms from two indane-1,2,3-trione-1,2-dioxime ligands. The two organic ligands are linked by an intramolecular O—H...O hydrogen bond. In the crystal, molecules are linked by N—H...O hydrogen-bonds.

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41

Pleschke, Axel, Jens Geier, Manfred Keller, Jürgen Wörth, Lothar Knothe, and Horst Prinzbach. "In Pursuit ofcis,cis,cis-Cyclonona-2,5,8-triene-1,4,7-trione – An Adventure in Medium-Sized Ring Chemistry." European Journal of Organic Chemistry 2007, no. 29 (2007): 4867–80. http://dx.doi.org/10.1002/ejoc.200700397.

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42

Borg, Bertil, Efthimia Antonopoulou, Eva Andersson, Tomas Carlberg, and Ian Mayer. "Effectiveness of several androgens in stimulating kidney hypertrophy, a secondary sexual character, in castrated male three-spined sticklebacks, Gasterosteus aculeatus." Canadian Journal of Zoology 71, no. 11 (1993): 2327–29. http://dx.doi.org/10.1139/z93-326.

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The effectiveness of different androgens in stimulating hypertrophy of the kidney tubules, a male secondary sexual character, was studied by injecting castrated male sticklebacks with androgens at doses of 0.008–25 μg∙g body weight−1∙day−1 (or control injections were given) for 3 weeks. The doses (μg/g) needed to give 50% stimulation of the kidney epithelium height were as follows: 11-ketotestosterone (OT), 0.047; 11β-hydroxyandrostenedione, 0.070; 11-ketoandrostenedione, 0.11; 5α-androstane-3,11,17-trione, 1.1; 5α-dihydrotestosterone, 1.8; 17β-hydroxy-5α-androstane-3,11-dione, 3.0; and testos

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Alinasab Amiri, Ali, Shahrzad Javanshir, Zahra Dolatkhah, and Mohammad G. Dekamin. "SO3H-functionalized mesoporous silica materials as solid acid catalyst for facile and solvent-free synthesis of 2H-indazolo[2,1-b]phthalazine-1,6,11-trione derivatives." New Journal of Chemistry 39, no. 12 (2015): 9665–71. http://dx.doi.org/10.1039/c5nj01733e.

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Wu, Zhifang, Wei Ma, Sheng Meng, et al. "New sensitizers containing amide moieties as electron-accepting and anchoring groups for dye-sensitized solar cells." RSC Advances 6, no. 78 (2016): 74039–45. http://dx.doi.org/10.1039/c6ra04915j.

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Three sensitizers with amide moieties as electron-accepting and anchoring groups were synthesized for dye-sensitized solar cells, in which the pyrimidine-trione-based sensitizer showed an efficiency of 3.9%.

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Dam, Binoyargha, Mithu Saha, Ramen Jamatia, and Amarta Kumar Pal. "Nano-ferrite supported glutathione as a reusable nano-organocatalyst for the synthesis of phthalazine-trione and dione derivatives under solvent-free conditions." RSC Advances 6, no. 60 (2016): 54768–76. http://dx.doi.org/10.1039/c6ra06376d.

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Nano-organocatalyzed one-pot four-component reactions for the synthesis of phthalazine-trione/dione derivatives have been devised for the first time from easily accessible starting materials under solvent-free conditions.

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Dey, Raja, Vratislav Langer, P. Roychowdhury, S. Roychowdhury та M. G. B. Drew. "21-Deoxycortisone (17α-hydroxy-4-pregnene-3,11,20-trione)". Acta Crystallographica Section C Crystal Structure Communications 61, № 4 (2005): o201—o203. http://dx.doi.org/10.1107/s0108270105003756.

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Liu, Wei Wei, Qiang Zhang, Feng Gong, et al. "Synthesis of Novel Glycosyl Imidazolidine-2,4,5-Trione Derivatives." Asian Journal of Chemistry 27, no. 1 (2015): 161–65. http://dx.doi.org/10.14233/ajchem.2015.16824.

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Fang, Li, Feifei Li, and Xuemei Luo. "1,3,5-Tris(4-methoxyphenyl)-1,3,5-triazinane-2,4,6-trione." Acta Crystallographica Section E Structure Reports Online 70, no. 2 (2014): o118. http://dx.doi.org/10.1107/s160053681303482x.

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The complete molecule of the title compound, C24H21N3O6, is generated by the application of threefold rotation symmetry about an axis perpendicular to the central ring. The molecule exhibits a propeller-like shape. The dihedral angle between each benzene ring and the heterocyclic ring is 74.0 (1)°. The molecules pack with no specific intermolecular interactions between them. TheSQUEEZEprocedure inPLATON[Spek (2009).Acta Cryst.D65, 148–155] was used to model disordered solvent molecules, presumed to be acetone; the calculated unit-cell data do not take into account the presence of these.

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Zou, Tao, Shaoping Li, Tingting Pan, et al. "Terahertz Spectra of Ninhydrin and Indane-1,2,3-Trione." Journal of Infrared, Millimeter, and Terahertz Waves 38, no. 7 (2017): 896–908. http://dx.doi.org/10.1007/s10762-017-0376-z.

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Khan, Muneeb Hayat, Islam Ullah Khan, Muhammad Nadeem Arshad, and Mehmet Akkurt. "2-Ethyl-2,3-dihydro-1,2-benzothiazole-1,1,3-trione." Acta Crystallographica Section E Structure Reports Online 67, no. 4 (2011): o887. http://dx.doi.org/10.1107/s1600536811009184.

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