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1

Yamasaki, Naoto, Marina Kanno, Kyohei Sakamoto, Yusuke Kasai, Hiroshi Imagawa, and Hirofumi Yamamoto. "m-C2B10H11HgCl/AgOTf-Catalyzed Reaction for Reductive Deoxygenation." Synlett 29, no. 02 (2017): 169–75. http://dx.doi.org/10.1055/s-0036-1588554.

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A m-C2B10H11HgCl/AgOTf-catalyzed reaction of allyl silyl ethers with N-Boc-N′-tosylhydrazine has been developed. Under mild conditions, the resulting allyl hydrazine products were transformed into naked alkenes in good yield. Furthermore, the used m-C2B10H11HgCl could be recovered quantitatively.
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2

Pramanik, Sayan, and Chhanda Mukhopadhyay. "Tosylhydrazine-promoted self-conjugate reduction–Michael/aldol reaction of 3-phenacylideneoxindoles towards dispirocyclopentanebisoxindole derivatives." Beilstein Journal of Organic Chemistry 18 (April 27, 2022): 469–78. http://dx.doi.org/10.3762/bjoc.18.49.

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An efficient tosylhydrazine-mediated conjugate reduction of 3-phenacylideneoxindole and sequential Michael/intramolecular aldol reaction is reported under base-catalyzed conditions towards the formation of densely substituted dispirocyclopentanebisoxindole derivatives. The reaction proceeded in a diastereoselective manner to afford four chiral stereocenters. The method also has advantages of wide substrate scope, readily available starting materials and operational simplicity through one pot reaction.
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3

Leelakumar, N., V. Nagapurnima, Gowd V. Suresh, B. V. Durga Rao, and Lakshman Shaik. "Bioactive and Solvent Free Synthesis of 5-phenyl-3-(Trifluoromethyl)-1H-pyrazole." Research Journal of Chemistry and Environment 26, no. 10 (2022): 117–22. http://dx.doi.org/10.25303/2610rjce1170122.

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The biological activities associated with 5-phenyl-3-(Trifluoromethyl)-1H-pyrazole, the synthesis, spectro- scopic identification and antibacterial activity of 5-phenyl-3-(Trifluoromethyl)-1H-pyrazole analogues (4a-4l) were obtained from substituted aromaticaldehyde, tosylhydrazine with 2-bromo-3,3,3-trifluoro prop-1-ene in the presence of in alcoholic medium using DABCO as a catalyst. The title compounds were evaluated by spectroscopic techniques such as 1HNMR, 13CNMR, LCMS and elemental analysis. The tested compounds were examined for antibacterial activity against gram positive and gram neg
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4

Iwadare, Tsukasa, Yoshiyuki Ichinohe, and Kazuhiko Orito. "Decomposition of tosylhydrazones of benzoin, benzoin acetate, and benzoin benzoate with alkali and metal complex hydrides." Canadian Journal of Chemistry 74, no. 2 (1996): 227–31. http://dx.doi.org/10.1139/v96-025.

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Treatment of tosylhydrazones of benzoin, benzoin acetate, and benzoin benzoate with alkali under protic and aprotic conditions yielded diphenyl acetylene together with desoxybenzoin. An increase in leaving aptitude of the adjacent group enhanced the formation of diphenyl acetylene. By treatment with LiAlH4 and with NaBH4, the tosylhydrazones gave stilbenes in good yields. Selective formation of cis- or trans-stilbene was observed in some cases. Key words: tosylhydrazone, benzoin derivatives, decomposition, metal complex hydrides.
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5

Kamijo, Shin, Mohammad Al-Masum, and Yoshinori Yamamoto. "Palladium catalyzed hydrosulfination of allenes with tosylhydrazine leading to allylsulfones." Tetrahedron Letters 39, no. 7 (1998): 691–94. http://dx.doi.org/10.1016/s0040-4039(97)10637-2.

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6

Adéyolé, TIMOTOU, Yves Guillaume MOLOU Kouassi, Simplice ZOAKOUMA Pépin, et al. "Design, Synthesis of Novel Benzylidenehydrazone Derivatives." Pharmaceutical and Chemical Journal 9, no. 6 (2022): 36–42. https://doi.org/10.5281/zenodo.13981753.

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This article describes the synthesis of new benzylidenehydrazone derivatives (<strong>4a-c</strong>). These compounds were synthesized by first designing N-substituted benzaldehyde derivatives (<strong>3a-c</strong>) through the action of cyclic amine with 2-chloro-5-nitrobenzaldehyde (<strong>2)</strong>. Condensation of these aldehydes (<strong>3a-c</strong>) with tosylhydrazine led to hydrazones derivatives (<strong>4a-c</strong>). The structures of these compounds were characterized by <sup>1</sup>H, <sup>13</sup>C Nuclear Magnetic Resonance (NMR) spectroscopy, and High-Resolution Mass Spe
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7

Roy, Saikat, and Ashwini Nangia. "p-Tosylhydrazine: a redetermination from single-crystal data at 100 K." Acta Crystallographica Section E Structure Reports Online 63, no. 9 (2007): o3696. http://dx.doi.org/10.1107/s1600536807037518.

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8

AVDEENKO, A. P., and N. I. EVGRAFOVA. "ChemInform Abstract: Reaction of N-Arylsulfonyl-1,4-naphthoquinon-4-imines with Tosylhydrazine." ChemInform 24, no. 31 (2010): no. http://dx.doi.org/10.1002/chin.199331148.

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9

KAMIJO, S., M. AL-MASUM, and Y. YAMAMOTO. "ChemInform Abstract: Palladium-Catalyzed Hydrosulfination of Allenes with Tosylhydrazine Leading to Allylsulfones." ChemInform 29, no. 18 (2010): no. http://dx.doi.org/10.1002/chin.199818110.

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10

Zhou, Lei, Zhenxing Liu, Yizhou Liu, Yan Zhang, and Jianbo Wang. "N-Tosylhydrazine-mediated deoxygenative hydrogenation of aldehydes and ketones catalyzed by Pd/C." Tetrahedron 69, no. 30 (2013): 6083–87. http://dx.doi.org/10.1016/j.tet.2013.05.070.

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11

Shang, Xuyang, Xiaomeng Zhou, Wei Zhang, Changfeng Wan, and Junmin Chen. "Tosylhydrazine mediated conjugate reduction and sequential reductive coupling cyclization: synthesis of 2-arylchromans." Tetrahedron 71, no. 42 (2015): 8187–93. http://dx.doi.org/10.1016/j.tet.2015.08.027.

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12

Avdeenko, A. P., and S. A. Zhukova. "Reaction of semiquinoid compounds derived fromN-arylsulfonyl-p-quinonemono- and diimines with tosylhydrazine." Russian Journal of Electrochemistry 36, no. 6 (2000): 816–19. http://dx.doi.org/10.1007/bf02757437.

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13

Sonomura, Kazuhiro, Hiroki Kuyama, Ei-ichi Matsuo, Susumu Tsunasawa, Shiroh Futaki, and Osamu Nishimura. "Selective isolation of N-blocked peptide by combining AspN digestion, transamination, and tosylhydrazine glass treatment." Analytical Biochemistry 410, no. 2 (2011): 214–23. http://dx.doi.org/10.1016/j.ab.2010.12.006.

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14

Zhou, Lei, Zhenxing Liu, Yizhou Liu, Yan Zhang, and Jianbo Wang. "ChemInform Abstract: N-Tosylhydrazine-Mediated Deoxygenative Hydrogenation of Aldehydes and Ketones Catalyzed by Pd/C." ChemInform 44, no. 47 (2013): no. http://dx.doi.org/10.1002/chin.201347070.

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15

Shang, Xuyang, Xiaomeng Zhou, Wei Zhang, Changfeng Wan, and Junmin Chen. "ChemInform Abstract: Tosylhydrazine Mediated Conjugate Reduction and Sequential Reductive Coupling Cyclization: Synthesis of 2-Arylchromans." ChemInform 47, no. 5 (2016): no. http://dx.doi.org/10.1002/chin.201605162.

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16

Koval'chuk, T. A., N. M. Kuz'menok, and A. M. Zvonok. "Reaction of 3-Aryl-1-(2-methyloxiran-2-yl)prop-2-en-1-ones with Tosylhydrazine." Chemistry of Heterocyclic Compounds 41, no. 10 (2005): 1237–44. http://dx.doi.org/10.1007/s10593-005-0309-y.

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17

Avdeenko, A. P., and S. A. Zhukova. "ChemInform Abstract: Reaction of Semiquinoid Compounds Derived from N-Arylsulfonyl-p-quinonemono- and Diimines with Tosylhydrazine." ChemInform 32, no. 15 (2001): no. http://dx.doi.org/10.1002/chin.200115099.

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18

Namba, Kosuke, Yoshihiro Shobo, Kazuki Fujimoto, Isamu Shoji, Masahiro Yoshida, and Keiji Tanino. "N-Acyl-N-tosylhydrazine as a Synthon To Construct Tetrasubstituted Carbon Centers Possessing a Nitrogen Group." European Journal of Organic Chemistry 2014, no. 24 (2014): 5196–203. http://dx.doi.org/10.1002/ejoc.201402650.

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19

Shu, Wen-Ming, Jun-Rui Ma, Kai-Lu Zheng та ін. "One-pot synthesis of polyfunctional pyrazoles: an easy access to α-diazoketones from arylglyoxal monohydrates and tosylhydrazine". Tetrahedron 70, № 49 (2014): 9321–29. http://dx.doi.org/10.1016/j.tet.2014.10.044.

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20

Zhou, Xiaomeng, Xiaokang Li, Wei Zhang та Junmin Chen. "A novel transition metal-free conjugate reduction of α,β-unsaturated ketones with tosylhydrazine as a hydrogen source". Tetrahedron Letters 55, № 37 (2014): 5137–40. http://dx.doi.org/10.1016/j.tetlet.2014.07.063.

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21

Namba, Kosuke, Yoshihiro Shobo, Kazuki Fujimoto, Isamu Shoji, Masahiro Yoshida, and Keiji Tanino. "ChemInform Abstract: N-Acyl-N-tosylhydrazine as a Synthon to Construct Tetrasubstituted Carbon Centers Possessing a Nitrogen Group." ChemInform 46, no. 9 (2015): no. http://dx.doi.org/10.1002/chin.201509158.

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22

Wu, Pei-Lin, Shao-Yu Peng, and Joe Magrath. "Tosylhydrazines by the Reduction of Tosylhydrazones with Triethylsilane in Trifluoroacetic Acid." Synthesis 1996, no. 02 (1996): 249–52. http://dx.doi.org/10.1055/s-1996-4196.

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23

Yang, Zan, Yemei Liang, An Li, et al. "One-Pot Synthesis of 5-Acyl-1,2,3-Thiadiazoles from Enaminones, Tosylhydrazine, and Elemental Sulfur under Transition-Metal-Free Conditions." Journal of Organic Chemistry 84, no. 24 (2019): 16262–67. http://dx.doi.org/10.1021/acs.joc.9b02866.

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24

Shu, Wen-Ming, Jun-Rui Ma, Kai-Lu Zheng та ін. "ChemInform Abstract: One-Pot Synthesis of Polyfunctional Pyrazoles: An Easy Access to α-Diazoketones from Arylglyoxal Monohydrates and Tosylhydrazine." ChemInform 46, № 17 (2015): no. http://dx.doi.org/10.1002/chin.201517168.

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25

MORIOKA, Motonobu, Masataka OHISH, Mari OHISHI, Hiroshi YOSHIDA, and Tsuyoshi OGATA. "Reaction of trans-1-Alkyl-2-(4-substituted benzoyl)-3-phenylaziridine with Tosylhydrazine and Semicarbazide. Preparation of 2-Pyrazoline Derivatives." NIPPON KAGAKU KAISHI, no. 9 (1995): 713–17. http://dx.doi.org/10.1246/nikkashi.1995.713.

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26

Zhou, Xiaomeng, Xiaokang Li, Wei Zhang та Junmin Chen. "ChemInform Abstract: A Novel Transition Metal-Free Conjugate Reduction of α,β-Unsaturated Ketones with Tosylhydrazine as a Hydrogen Source." ChemInform 46, № 8 (2015): no. http://dx.doi.org/10.1002/chin.201508138.

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27

WU, P. L., S. Y. PENG, and J. MAGRATH. "ChemInform Abstract: Tosylhydrazines by the Reduction of Tosylhydrazones with Triethylsilane in Trifluoroacetic Acid." ChemInform 27, no. 28 (2010): no. http://dx.doi.org/10.1002/chin.199628094.

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28

Huang, Wei, Chuanle Zhu, Minke Li, et al. "TBAI or KI-Promoted Oxidative Coupling of Enamines and N -Tosylhydrazine: An Unconventional Method toward 1,5- and 1,4,5-Substituted 1,2,3-Triazoles." Advanced Synthesis & Catalysis 360, no. 16 (2018): 3117–23. http://dx.doi.org/10.1002/adsc.201800487.

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29

Wu, Yan-Dong, Jun-Rui Ma, Wen-Ming Shu, Kai-Lu Zheng, and An-Xin Wu. "Base-promoted domino reaction for the synthesis of 2,3-disubstituted indoles from 2-aminobenzaldehyde/2-amino aryl ketones, tosylhydrazine, and aromatic aldehydes." Tetrahedron 72, no. 32 (2016): 4821–26. http://dx.doi.org/10.1016/j.tet.2016.06.046.

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30

Sharp, John T., and Carol E. D. Skinner. "The generation and reactions of C,N-dianions of aromatic tosylhydrazones; ortho-N-dilithiated benzophenone tosylhydrazone." Tetrahedron Letters 27, no. 7 (1986): 869–72. http://dx.doi.org/10.1016/s0040-4039(00)84123-4.

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31

Sun, Bin, Kenji Adachi, and Michihiko Noguchi. "A Facile Cyclopropane Ring-Formation by the Thermal Reaction of 2-(Alk-2-enylamino)-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxaldehydes with Tosylhydrazine." Synthesis 1997, no. 01 (1997): 53–56. http://dx.doi.org/10.1055/s-1997-1507.

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32

Ojala, W. H., and W. B. Gleason. "Cyclopentanone Tosylhydrazone and Cyclohexanone Tosylhydrazone." Acta Crystallographica Section C Crystal Structure Communications 54, no. 1 (1998): 63–66. http://dx.doi.org/10.1107/s0108270197011682.

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33

Zahid, Muhammad, Viktor O. Iaroshenko, Ashot S. Saghyan, Christine Fischer, and Peter Langer. "Convenient synthesis of benzo[b]pyrazolo[5,1-f][1,6]naphthyridines by silver triflate catalyzed three-component reaction of 2-alkynyl-3-formylquinolines, tosylhydrazine and carbonyl compounds." Tetrahedron 69, no. 16 (2013): 3451–58. http://dx.doi.org/10.1016/j.tet.2013.02.060.

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34

Zahid, Muhammad, Viktor O. Iaroshenko, Ashot S. Saghyan, Christine Fischer, and Peter Langer. "ChemInform Abstract: Convenient Synthesis of Benzo[b]pyrazolo[5,1-f][1,6]naphthyridines by Silver Triflate Catalyzed Three-Component Reaction of 2-Alkynyl-3-formylquinolines, Tosylhydrazine and Carbonyl Compounds." ChemInform 44, no. 34 (2013): no. http://dx.doi.org/10.1002/chin.201334161.

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35

Tang, Meng, and Hu Wang. "Aluminum Chloride Promoted Hantzsch Reaction of N-Tosylhydrazones." Synthesis 49, no. 21 (2017): 4893–98. http://dx.doi.org/10.1055/s-0036-1588496.

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An aluminum chloride promoted Hantzsch reaction of N-tosylhydrazones has been developed. The reaction is general for a wide range of N-tosylhydrazones, and a series of 1,4-dihydropyridines (1,4-DHPs) were prepared in moderate to excellent yields.
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36

Deng, Yu-Hua, Zhihui Shao, and Hui Wang. "An Update of N-Tosylhydrazones: Versatile Reagents for Metal-Catalyzed and Metal-Free Coupling Reactions." Synthesis 50, no. 12 (2018): 2281–306. http://dx.doi.org/10.1055/s-0036-1591993.

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N-Tosylhydrazones have had widespread application in organic synthesis for more than a half century. In most of cases, N-tosylhydrazones, as masked diazo compounds, have been generally used in a series of important carbon–carbon and carbon–heteroatom bond-forming reactions. This review provides an update on progress in diverse coupling reactions of N-tosylhydrazones since 2012. The examples selected are mainly categorized by metal-catalyzed and metal-free systems, wherein four main types of transformations including insertion, olefination, alkynylation, and cyclization are discussed for each s
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37

Ciric, Jovan, Sandra Konstantinovic, Slavica Ilic, Gordana Gojgic-Cvijovic, Dragisa Savic, and Vlada Veljkovic. "The impact of isatin derivatives on antibiotic production by Streptomyces hygroscopicus CH-7." Chemical Industry 70, no. 2 (2016): 123–28. http://dx.doi.org/10.2298/hemind141127019c.

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The effect of isatin derivatives as a nitrogen source on antibiotic (Hexaene H-85 and Azalomycine B) production by Streptomyces hygroscopicus CH-7 was studied. Isatin-3-hydrazone, 5-chloroisatin-3-hydrazone, isatin-3-tosylhydrazone, 5-chloroisatin-3-tosylhydrazone, isatin-3-(4`-hidroxy)benzoilhydrazone and 5-chloroisatin-3-(4`-hidroxy)benzoilhydrazone were synthesized in a crude glycerol, obtained during the biodiesel production from edible sunflower oil. The highest concentration of Hexaene H-85 is achieved with 5-chloroisatin-3-hydrazone (197 mg/cm3) in medium, while isatin-3-hydrazone has a
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38

Phansavath, Phannarath, Virginie Ratovelomanana-Vidal, Anne Westermeyer, Quentin Llopis, and Gérard Guillamot. "Highly Regioselective Synthesis of 3,5-Substituted Pyrazoles from Bromovinyl Acetals and N-Tosylhydrazones." Synlett 31, no. 12 (2020): 1172–76. http://dx.doi.org/10.1055/s-0039-1690885.

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A regioselective synthesis of 3,5-disubstituted pyrazoles was achieved by 1,3-dipolar cycloaddition of diazo compounds, generated in situ from N-tosylhydrazones, with unactivated bromovinyl acetals, which served as alkyne surrogates. The reaction tolerated N-tosylhydrazones bearing various substituted benzylidene groups, and a range of 3,5-disubstituted pyrazoles were obtained in yields of up to 92%.
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39

Li, Shichao, Muyao Li, Shu-Sen Li, and Jianbo Wang. "Pd-Catalyzed coupling of benzyl bromides with BMIDA-substituted N-tosylhydrazones: synthesis of trans-alkenyl MIDA boronates." Chemical Communications 58, no. 3 (2022): 399–402. http://dx.doi.org/10.1039/d1cc06170d.

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40

Wu, Luyong, Shanguang Qiu, Yuxue Chen, Xinming Song, Li Liu, and Xi Liu. "Potassium tert-Butoxide Promoted Synthesis of 4,5-Diaryl-2H-1,2,3-triazoles from Tosylhydrazones and Nitriles." Synlett 32, no. 01 (2020): 86–90. http://dx.doi.org/10.1055/s-0040-1707321.

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AbstractIntermolecular cycloaddition of tosylhydrazones with nitriles was investigated. t-BuOK was shown to be an excellent base for increasing the effectiveness of the reaction in this protocol, and homocoupling of the tosylhydrazones was significantly inhibited by using xylene as a solvent. Through this transformation, a variety of 4,5-diaryl-2H-1,2,3-triazoles were prepared in good to excellent yields and with high purities. The process is azide-free and transition-metal-free.
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41

Siqueira, Diego Pereira, Maria Carolina Bulhosa Siqueira, Vanessa Carratu Gervini, Leandro Bresolin та Adriano Bof de Oliveira. "Crystal structure of bis{μ-4-methyl-N′-[3-(oxidoimino)butan-2-ylidene]benzenesulfonohydrazidato}bis[(dimethyl sulfoxide-κO)copper(II)]". Acta Crystallographica Section E Structure Reports Online 70, № 9 (2014): m316—m317. http://dx.doi.org/10.1107/s1600536814016651.

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In the title compound, [Cu2(C11H13N3O3S)2(C2H6OS)2], the CuIIcation isN,N′,O-chelated by a deprotonated hydroxyimino-tosylhydrazone ligand and coordinated by a dimethyl sulfoxide molecule. One O atom from the adjacent hydroxyimino-tosylhydrazone ligand bridges the CuIIcation, forming the centrosymmetric dimeric complex. The cation is in an overall distorted N2O3square-pyramidal coordination environment. The methylbenzene ring is twisted with respect to the hydrazine fragment, with a dihedral angle of 89.54 (9)° between the planes. An intramolecular C—H...O hydrogen bond occurs. In the crystal,
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42

Siyang, Hai Xiao, Xu Rui Wu, Xiao Yue Ji, Xin Yan Wu, and Pei Nian Liu. "A copper(ii) perchlorate-promoted tandem reaction of internal alkynol and salicyl N-tosylhydrazone: direct access to isochromeno[3,4-b]chromene." Chem. Commun. 50, no. 62 (2014): 8514–17. http://dx.doi.org/10.1039/c4cc02862g.

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43

Yang, Jianhua, Shaoqi Xiong, Yongsheng Ren, Tiebo Xiao, and Yubo Jiang. "Copper-catalyzed cross-coupling and sequential allene-mediated cyclization for the synthesis of 1,2,3-triazolo[1,5-a]quinolines." Organic & Biomolecular Chemistry 18, no. 36 (2020): 7174–82. http://dx.doi.org/10.1039/d0ob00435a.

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In this paper, a tandem reaction involving copper-catalyzed cross-coupling and allene-mediated cyclization of 1-(2-ethynylaryl)-1,4-disubstituted-1,2,3-triazole with N-tosylhydrazone has been developed.
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44

Sun, Hong-Xia, Shao-Xuan Gong, Hong-Yang Zhang, et al. "Research Progress on the Reaction of Carbon Dioxide with Hydrazones and Their Derivatives." Molecules 30, no. 9 (2025): 1987. https://doi.org/10.3390/molecules30091987.

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CO2, an abundant and renewable C1 source, presents significant potential for applications in organic synthesis. Hydrazones, recognized for their distinctive properties, exhibit high versatility in synthetic chemistry, facilitating numerous chemical transformations. Given their crucial roles in organic synthesis, the combination of CO2 with hydrazones has garnered increasing research interest. This review provides a comprehensive summary of recent progress in reactions involving CO2 and hydrazones or their derivatives. These include the coupling of amines and N-tosylhydrazones with CO2, the ump
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45

Qiu, Zhiping, Jiaojiao Deng, Zhongchao Zhang, Caihong Wu, Juan Li, and Xiaojian Liao. "Mechanism of the rhodium(iii)-catalyzed alkenylation reaction of N-phenoxyacetamide with styrene or N-tosylhydrazone: a computational study." Dalton Transactions 45, no. 19 (2016): 8118–26. http://dx.doi.org/10.1039/c6dt00093b.

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A systematic density functional theory study has been conducted to examine the mechanisms involved in the rhodium(iii)-catalyzed alkenylation ofN-phenoxyacetamide with two different substrates (i.e., styrene andN-tosylhydrazone).
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46

Deshmukh, Dewal S., and Bhalchandra M. Bhanage. "N-Tosylhydrazone directed annulation via C–H/N–N bond activation in Ru(ii)/PEG-400 as homogeneous recyclable catalytic system: a green synthesis of isoquinolines." Organic & Biomolecular Chemistry 16, no. 26 (2018): 4864–73. http://dx.doi.org/10.1039/c8ob01082j.

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A green and sustainable methodology for the synthesis of isoquinolines using Ru(ii)/PEG-400 as homogeneous recyclable catalytic system and N-tosylhydrazone, a rarely explored directing group has been reported.
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47

Soam, Pooja, Hashmita Gaba, Debasish Mandal, and Vikas Tyagi. "A Pd-catalyzed one-pot cascade consisting of C–C/C–O/N–N bond formation to access benzoxazine fused 1,2,3-triazoles." Organic & Biomolecular Chemistry 19, no. 45 (2021): 9936–45. http://dx.doi.org/10.1039/d1ob01539g.

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A Pd-catalyzed one-pot cascade consisting of C–C/C–O/N–N bond formation to access clinically important fused 1,2,3-triazoles using N-aryl-α-(tosylhydrazone)acetamides with isocyanide has been developed.
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48

Chen, Yao-Zhong, Teng Liu, Jie Zhu, Hui Zhang, and Lei Wu. "Transition-metal-free radical cleavage of a hydrazonyl N–S bond: tosyl radical-initiated cascade C(sp3)–OAr cleavage, sulfonyl rearrangement and atropisomeric cyclopropanation." Organic Chemistry Frontiers 5, no. 24 (2018): 3567–73. http://dx.doi.org/10.1039/c8qo00873f.

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Combination of 1,10-phenanthroline and potassium carbonate enables a radical cleavage of a hydrazonyl N–S bond, allowing a coupling reaction of N-tosylhydrazone and phosphinyl allene via cascade C–O cleavage, sulfonyl rearrangement and atropisomeric cyclopropanation.
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Yan, Xiao-Jing, Xiao-Mei Liang, Shu-Hui Jin, and Dao-Quan Wang. "2-(Methylsulfanyl)cyclododecanone tosylhydrazone." Acta Crystallographica Section E Structure Reports Online 64, no. 4 (2008): o657. http://dx.doi.org/10.1107/s1600536808005515.

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Kaszás, Tímea, Marietta Tóth та László Somsák. "A new synthesis of C-β-d-glycopyranosylmethyl sulfides by metal-free coupling of anhydro-aldose tosylhydrazones with thiols". New Journal of Chemistry 41, № 22 (2017): 13871–80. http://dx.doi.org/10.1039/c7nj03069j.

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