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1. A new synthetic route to pyrroloquinolines and pyrroloindoles (21-11405OP)
Karin Pchalek, Glenn C. Condie, Naresh Kumar and David StC. Black
DOI: https://doi.org/10.24820/ark.5550190.p011.405
Full Text: PDF (464K)
pp. 1 - 12
received Oct 27 2020; accepted Jan 6 2021; published Jan 11 2021;
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2. Synthesis and characterization of new β-D-C-glycosides analogous to curcuminoids (21-11386FP)
Eugenio Torres-Rodriguez, Quirino Arias Cedeño, Dirk Michalik, Rodisnel Perdomo Rivera and Christian Vogel
DOI: https://doi.org/10.24820/ark.5550190.p011.386
Full Text: PDF (671K)
Supplementary Material: PDF (466K)
pp. 13 - 22
received Sep 25 2020; accepted Jan 9 2021; published Feb 8 2021;
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3. Synthesis and DTF studies of novel aminoimidazodipyridines using 2-(3H-imidazo[4,5-b]pyridin-2-yl)acetonitrile as an efficient key precursor (21-11415SP)
Ahmed F. Darweesh, Nesma A. Abd El-Fatah, Samir A. Abdel-Latif, Ismail A. Abdelhamid, Ahmed H. M. Elwahy and Mostafa E. Salem
DOI: https://doi.org/10.24820/ark.5550190.p011.415
Full Text: PDF (675K)
Supplementary Material: PDF (1,614K)
pp. 23 - 37
received Nov 10 2020; accepted Jan 20 2021; published Feb 8 2021;
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4. Synthesis and structure determination of diastereomeric carbapenems in the AdNE-reaction of (±)-4,4-dimethyl-3-mercaptodihydrofuran-2(3H)-one with chiral carbapenem enol phosphate
(21-11437JP)
Zuleykha Valiullina, Adeliya Galeeva, Alexander Lobov, Leonard Khalilov and Mansur Miftakhov
DOI: https://doi.org/10.24820/ark.5550190.p011.437
Full Text: PDF (726K)
Supplementary Material: PDF (2,006K)
pp. 38 - 49
received Dec 2 2020; accepted Jan 21 2021; published Feb 8 2021;
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5. A concise synthesis of isoguanine 2ʹ-deoxyriboside and its adenine-like triplex formation when incorporated into DNA (21-11460GP)
Andrew J. Walsh, Carl H. Schwalbe and William Fraser
DOI: https://doi.org/10.24820/ark.5550190.p011.460
Full Text: PDF (607K)
Supplementary Material: PDF (1,488K)
pp. 50 - 62
received Dec 28 2020; accepted Jan 18 2021; published Feb 14 2021;
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6. Isolation and structural characterization of novel thermal degradation impurity of nafcillin sodium using spectroscopic and computational techniques (21-11421ZP)
Prasad Yaragorla, Yesudas Kada, Krishnam Raju Ch, Arunima Pola, Rabin Bera and Sanath Kumar Goud P
DOI: https://doi.org/10.24820/ark.5550190.p011.421
Full Text: PDF (794K)
Supplementary Material: PDF (838K)
pp. 63 - 76
received Nov 18 2020; accepted Feb 5 2021; published Feb 18 2021;
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7. Synthesis of furano[2,3-g]indoles from activated indoles (21-11468NP)
Karin Pchalek, Naresh Kumar and David StC. Black
DOI: https://doi.org/10.24820/ark.5550190.p011.468
Full Text: PDF (443K)
pp. 77 - 85
received Jan 11 2021; accepted Feb 16 2021; published Feb 19 2021;
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8. An eco-friendly approach for the synthesis of 1,2,5-trisubstituted and 4-amino-1,2,5-tetrasubstituted imidazoles via a multi-component condensation (21-11442SP)
Hossein Mehrabi, Farzaneh Alizadeh-Bami, Azam Meydani and Soheila Besharat
DOI: https://doi.org/10.24820/ark.5550190.p011.442
Full Text: PDF (552K)
Supplementary Material: PDF (1,961K)
pp. 86 - 95
received Dec 7 2020; accepted Feb 15 2021; published Feb 21 2021;
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9. L-Ascorbic acid as an efficient organocatalyst for the synthesis of dispiro[tetrahydroquinoline-bis(1,3-dioxane-4,6-dione)] derivatives (21-11463JP)
Peixin Rui, Zhaohui Xu, Jingli Liu and Qingshui Huang
DOI: https://doi.org/10.24820/ark.5550190.p011.463
Full Text: PDF (736K)
pp. 96 - 106
received Jan 4 2021; accepted Feb 24 2021; published Feb 28 2021;
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10. One-pot synthesis of 5H-chromeno[3,4-b]pyrazin-5-one derivatives from 4-amino-3-nitrocoumarin and α-dicarbonyl compounds (21-11432NP)
Matina D. Douka and Konstantinos E. Litinas
DOI: https://doi.org/10.24820/ark.5550190.p011.432
Full Text: PDF (527K)
Supplementary Material: PDF (2,169K)
pp. 107 - 118
received Nov 27 2020; accepted Mar 17 2021; published Apr 11 2021;
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11. Copper-catalyzed tandem reaction of cyclic esterification/selenoxide for 11-oxo-11H-5-oxa-11-selena-benzo[a] fluoren-6-ones synthesis (21-11478MP)
Xinyan Zhou, Yueqin Xue, Yiying Cheng and Runsheng Xu
DOI: https://doi.org/10.24820/ark.5550190.p011.478
Full Text: PDF (593K)
Supplementary Material: PDF (1,939K)
pp. 119 - 129
received Jan 23 2021; accepted Mar 29 2021; published Apr 16 2021;
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12. Addition of heteroatom nucleophiles to ketene dimers (21-11441YP)
Ahmad A. Ibrahim, Gero D. Harzmann, Divya Nalla, Beth Elledge, Max Van Raaphorst,
Nessan J. Kerrigan
DOI: https://doi.org/10.24820/ark.5550190.p011.441
Full Text: PDF (668K)
Supplementary Material: PDF (904K)
pp. 130 - 144
received Dec 5 2020; accepted Mar 29 2021; published Apr 20 2021;
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13. Diastereoselective photochemical radical addition of a cyclic ether to olefins: addition of THF radicals to dialkyl maleates (21-11509YP)
Mamiko Hayakawa, Tadashi Aoyama and Akihiko Ouchi
DOI: https://doi.org/10.24820/ark.5550190.p011.509
Full Text: PDF (522K)
Supplementary Material: PDF (16,299K)
pp. 145 - 154
received Mar 12 2021; accepted Mar 30 2021; published Apr 20 2021;
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14. Cu-Catalyzed solvent-free, pot-economic synthesis of 1,3-dynes from 1,1-dibromoalkenes in the presence of DBU•H2O (21-11466YP)
Shiva Krishna Moodapelly, Yerramsetti Nanaji, Gangavaram V. M. Sharma, Kanaparthy Suneeel and Venkata Ramana Doddi
DOI: https://doi.org/10.24820/ark.5550190.p011.466
Full Text: PDF (731K)
Supplementary Material: PDF (2,269K)
pp. 155 - 166
received Jan 10 2021; accepted Apr 1 2021; published Apr 25 2021;
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15. 1,3,4-Thiadiazol-2-ylphenyl-1,2,4,5-tetrazines: efficient synthesis via Pinner reaction and their luminescent properties (21-11476MP)
Anna Maj, Agnieszka Kudelko and Marcin Swiatkowski
DOI: https://doi.org/10.24820/ark.5550190.p011.476
Full Text: PDF (523K)
Supplementary Material: PDF (2,318K)
pp. 167 - 178
received Jan 21 2021; accepted Apr 16 2021; published Jun 6 2021;
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16. Synthesis of methoxychalcone derivatives with isobornyl substituents (21-11471GP)
Svetlana A. Popova, Evgeniya V. Pavlova and Irina Yu. Chukicheva
DOI: https://doi.org/10.24820/ark.5550190.p011.471
Full Text: PDF (488K)
Supplementary Material: PDF (456K)
pp. 179 - 189
received Jan 18 2021; accepted Apr 19 2021; published Jun 6 2021;
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17. A simple and efficient preparation of bis(indolyl)methanes catalyzed by HCl/silica gel under solvent-free conditions (21-11502SP)
Praewpan Katrun, Karnjana Atthawilai and Chutima Kuhakarn
DOI: https://doi.org/10.24820/ark.5550190.p011.502
Full Text: PDF (550K)
Supplementary Material: PDF (11,019K)
pp. 190 - 203
received Mar 3 2021; accepted Apr 23 2021; published Jun 6 2021;
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18. Copper-catalyzed radical oxyallylation of olefins for the construction of alkene-containing isoxazolines (21-11492ZP)
Xiaoxue He, Lijie Qian, Yuyu Dai, Xinhuan Yan, Xiaoqing Li and Xiangsheng Xu
DOI: https://doi.org/10.24820/ark.5550190.p011.492
Full Text: PDF (706K)
Supplementary Material: PDF (3,088K)
pp. 204 - 216
received Feb 12 2021; accepted Apr 26 2021; published Jun 6 2021;
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19. β-Pinene and camphor based, pyrazole-tethered triarylphosphines as chiral P,N ligands for palladium (21-11550YP)
Debajyoti Saha, Tuluma Das and Anwesha Pal
DOI: https://doi.org/10.24820/ark.5550190.p011.550
Full Text: PDF (1,917K)
Supplementary Material: PDF (3,417K)
pp. 217 - 233
received May 4 2021; accepted May 31 2021; published Jun 9 2021;
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20. Efficient synthesis of (-)-clausenamide (21-11501IP)
Senmei Zhu, Yixiao Yan, Jinlong Su, Guantao He, Yu Rao, Hansen Lin
DOI: https://doi.org/10.24820/ark.5550190.p011.501
Full Text: PDF (1,321K)
Supplementary Material: PDF (890K)
pp. 234 - 241
received Mar 1 2021; accepted Jun 3 2021; published Jun 10 2021;
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21. Microwave-assisted synthesis of novel 1-{[(diindolyl)methyl]benzyl}-2-{[(diindolyl)methyl]phenyl}-1H-benzimidazole scaffold via two-consecutive multicomponent reaction (21-11450GP)
Ricardo Alfredo Luna-Mora, Cecilio Álvarez-Toledano, Hulme Ríos-Guerra, Fernando Ortega-Jiménez, José Guadalupe López-Cortés, Javier Pérez-Flores, Ángeles Torres-Reyes, Lessly Moreno-González, Alejandro Martínez Zaldívar, Francisco Barrera-Téllez and José Guillermo Penieres-Carrillo
DOI: https://doi.org/10.24820/ark.5550190.p011.450
Full Text: PDF (551K)
Supplementary Material: PDF (2,128K)
pp. 242 - 252
received Dec 14 2020; accepted May 6 2021; published Jun 13 2021;
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22. Efficient synthesis of N-substituted 1,3-thiazin-2-ones containing sulfonamide
(21-11528MP)
Besma Bendif, Nadjia Bensouilah, Frédéric Dumur and Malika Ibrahim-Ouali
DOI: https://doi.org/10.24820/ark.5550190.p011.528
Full Text: PDF (794K)
pp. 253 - 264
received Apr 6 2021; accepted May 14 2021; published Jun 13 2021;
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23. High yield synthesis of trans-azoxybenzene versus 2-isopropoxy-4-nitrobenzoic acid: influence of temperature and base concentration (21-11489NP)
J. Jonathan Nué-Martínez, Ibon Alkorta and Christophe Dardonville
DOI: https://doi.org/10.24820/ark.5550190.p011.489
Full Text: PDF (568K)
Supplementary Material: PDF (672K)
pp. 265 - 276
received Feb 9 2021; accepted May 23 2021; published Jun 13 2021;
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24. Synthesis and trypanocidal activity of substituted 2,4-diarylquinoline derivatives (21-11499ZP)
Kola A. Oluwafemi, Siyolise Phunguphungu, Sinalo Gqunu, Michelle Isaacs, Heinrich C. Hoppe, Rosalyn Klein and Perry T. Kaye
DOI: https://doi.org/10.24820/ark.5550190.p011.499
Full Text: PDF (534K)
Supplementary Material: PDF (1,231K)
pp. 277 - 285
received Feb 24 2021; accepted May 17 2021; published Jun 27 2021;
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25. Direct arylation of heteroaromatic compounds by Pd(OAc)2/tetrakis(N-benzimidazoliummethyl)benzene salt system (21-11533ZP)
Öznur Doğan Ulu and İsmail Özdemir
DOI: https://doi.org/10.24820/ark.5550190.p011.533
Full Text: PDF (1,562K)
pp. 286 - 295
received Apr 12 2021; accepted Jul 8 2021; published Jul 12 2021;
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26. Synthesis, anticancer activity and molecular docking studies of new 4-nitroimidazole derivatives (21-11479OP)
Yaseen A. Al-Soud, Kafa’ A. S. Alhelal, Bahjat A. Saeed, Luay Abu-Qatouseh, Hossam H. Al-Suod, Ala’a H. Al-Ahmad, Najim A. Al-Masoudi and Raed A. Al-Qawasmeh
DOI: https://doi.org/10.24820/ark.5550190.p011.479
Full Text: PDF (2,034K)
Supplementary Material: PDF (1,285K)
pp. 296 - 309
received Jan 24 2021; accepted Jul 8 2021; published Jul 16 2021;
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27. Palladium catalyzed molecular cascades for the synthesis of ethyl 2-methyl-2-(4-methyl-3-(morpholinomethyl)-2-oxopent-3-en-1-yl)-1-oxo-1,2,3,4,5,6-hexahydro-3aH-indene-3a-carboxylate (21-11572YP)
Paolo Quadrelli
DOI: https://doi.org/10.24820/ark.5550190.p011.572
Full Text: PDF (638K)
pp. 310 - 323
received Jun 14 2021; accepted Jul 1 2021; published Aug 1 2021;
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28. Catalyst-free rapid conversion of arylboronic acids to phenols under green condition (21-11588IP)
Zhenhua Dong, Hongguo Pan and Mengmeng Liu
DOI: https://doi.org/10.24820/ark.5550190.p011.588
Full Text: PDF (505K)
Supplementary Material: PDF (3,807K)
pp. 324 - 330
received Jun 29 2021; accepted Jul 31 2021; published Aug 10 2021;
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29. New Schiff bases from 2,5-bis-(butylsulfanyl)-2,3-dihydro-4H-pyran-2-carbaldehyde (21-11567IP)
Ekaterina A. Verochkina, Nadezhda V. Vchislo and Ludmila I. Larina
DOI: https://doi.org/10.24820/ark.5550190.p011.567
Full Text: PDF (458K)
Supplementary Material: PDF (1,193K)
pp. 331 - 339
received Jun 6 2021; accepted Aug 3 2021; published Aug 13 2021;
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30. Transition-metal-free visible light-promoted photoredox oxidative dehydrogenative cyclization: expeditious approach to 1,2,4-thiadiazoles (21-11577JP)
Zhiqiang Xiong, Qihao Zhong, Shouri Sheng and Junmin Chen
DOI: https://doi.org/10.24820/ark.5550190.p011.577
Full Text: PDF (353K)
Supplementary Material: PDF (2,392K)
pp. 340 - 348
received Jun 22 2021; accepted Aug 15 2021; published Aug 25 2021;
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