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Functionalizing the γ-position of α-diazo-β-ketoesters

Nguyen, Thu Q ; Alqurafi, Maha ; Edwards, Cash ; Nguyen, Pauline ; Kim, Jean ; Casco, Samuel ; Bennet, Maricka ; Chiang, Christopher ; Lohry, Maureen ; Cox, Melina ; Meshram, Byron ; Le, Duyen ; Kim, Eugene ; Smriti, Snigdha ; Oelschlaeger, Peter ; Buynak, John D

Tetrahedron Letters, 27 July 2016, Vol.57(30), pp.3330-3333 [Peer Reviewed Journal]

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Synthesis of novel pyrazole derivatives incorporating one dicarba-closo-dodecaborane unit

Vázquez, Naiara ; Gómez-Vallejo, Vanessa ; Llop, Jordi

Tetrahedron Letters, 29 August 2012, Vol.53(35), pp.4743-4746 [Peer Reviewed Journal]

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2-Bromo-1-(1H-pyrazol-4-yl)ethanone: versatile precursors for novel mono-, bis- and poly{6-(1H-pyrazol-4-yl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazines}

Salem, Mostafa E ; Darweesh, Ahmed F ; Farag, Ahmad M ; Elwahy, Ahmed H.M

Tetrahedron, 04 February 2016, Vol.72(5), pp.712-719 [Peer Reviewed Journal]

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Solid phase synthesis of 1,5-disubstituted pyrazole-4-hydroxamic acids and pyrazole-4-carboxamides via direct amidation of β-ketoesters

Zhai, Weixu ; Gerritz, Samuel W ; Sofia, Michael J

Tetrahedron Letters, 2012, Vol.53(3), pp.267-270 [Peer Reviewed Journal]

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Synthesis, characterization and photoluminescence of 8-oxyquinolinato organoboron complexes derived from pyrazole

Durka, Krzysztof ; Górska, Agnieszka ; Jankowski, Piotr ; Kliś, Tomasz ; Kublicki, Marcin ; Serwatowski, Janusz ; Urban, Mateusz ; Wesela-Bauman, Grzegorz ; Woźniak, Krzysztof

Tetrahedron Letters, 22 March 2017, Vol.58(12), pp.1185-1189 [Peer Reviewed Journal]

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A mild halogenation of pyrazoles using sodium halide salts and Oxone

Olsen, Kathryn L ; Jensen, Matthew R ; Mackay, James A

Tetrahedron Letters, 25 October 2017, Vol.58(43), pp.4111-4114 [Peer Reviewed Journal]

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Propargylamine (secondary) as a building block in indole synthesis involving ultrasound assisted Pd/Cu-catalyzed coupling-cyclization method: Unexpected formation of (pyrazole)imine derivatives

Sujeevan Reddy, Gangireddy ; Babu Nallapati, Suresh ; Sri Saranya, P.S.V.K ; Sridhar, B ; Bhat Giliyaru, Varadaraj ; Chandrashekhar Hariharapura, Raghu ; Gautham Shenoy, G ; Pal, Manojit

Tetrahedron Letters, 26 December 2018, Vol.59(52), pp.4587-4592 [Peer Reviewed Journal]

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A Mild and Regiospecific Synthesis of Pyrazoleboranes

Brown, Andrew W. ; Comas‐Barceló, Júlia ; Harrity, Joseph P. A.

Chemistry – A European Journal, 19 April 2017, Vol.23(22), pp.5228-5231 [Peer Reviewed Journal]

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9
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A Gold-Catalyzed Domino Cyclization Enabling Rapid Construction of Diverse Polyheterocyclic Frameworks

He, Yi ; Li, Zhenghua ; Robeyns, Koen ; Vanmeervelt, Luc ; Vandereycken, Erik V

Angewandte Chemie, Jan 2, 2018, Vol.57(1), pp.272-276 [Peer Reviewed Journal]

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Regioselective 1,3-dipolar cycloaddition of nitrilimines to 2-methyl-2-vinyl oxirane

Yıldırım, Muhammet ; Dürüst, Yaşar

Tetrahedron, 2011, Vol.67(18), pp.3209-3215 [Peer Reviewed Journal]

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Synthesis of tetra-substituted pyrazoles

Rüger, Anne J ; Nieger, Martin ; Bräse, Stefan

Tetrahedron, 21 October 2012, Vol.68(42), pp.8823-8829 [Peer Reviewed Journal]

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A copper-free, cross-coupling of terminal alkynes with hetaryl halides

Arsenyan, Pavel ; Rubina, Kira ; Vasiljeva, Jelena ; Belyakov, Sergey

Tetrahedron Letters, 27 November 2013, Vol.54(48), pp.6524-6528 [Peer Reviewed Journal]

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Straightforward copper-catalyzed synthesis of pyrrolopyrazoles from halogenated pyrazolecarbaldehydes

Nayak, Maloy ; Batchu, Harikrishna ; Batra, Sanjay

Tetrahedron Letters, 08 August 2012, Vol.53(32), pp.4206-4208 [Peer Reviewed Journal]

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Synthesis of benzo[6,7][1,4]diazepino[1,2-b]indazol-7(6H)-ones and benzo[f]pyrazolo[1,5-a][1,4]diazepin-4-ones via CuI/l-proline catalyzed intramolecular N2-arylation

Wang, Hong-Jun ; Camara, Fatoumata ; Haber, James C ; Mangette, John E

Tetrahedron Letters, 18 February 2015, Vol.56(8), pp.1030-1033 [Peer Reviewed Journal]

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Atmospheric oxygen mediated synthesis of pyrazole under visible irradiation

Yadav, Snehlata ; Rai, Pratibha ; Srivastava, Madhulika ; Singh, Jaya ; Tiwari, Kamla Prasad ; Singh, Jagdamba

Tetrahedron Letters, 21 October 2015, Vol.56(43), pp.5831-5835 [Peer Reviewed Journal]

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Simple approach to the synthesis of 3-fluoro pyrazolo[1,5-a]pyrimidine analogues

Belabed, Hassen ; Mammoliti, Oscar ; Van Lommen, Guy ; Herdewijn, Piet

Tetrahedron Letters, 2013, Vol.54(21), pp.2612-2614 [Peer Reviewed Journal]

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Simple approach to the synthesis of 3-fluoro pyrazolo[1,5-a]pyrimidine analogues

Bel Abed, Hassen ; Mammoliti, Oscar ; Van Lommen, Guy ; Herdewijn, Piet

Tetrahedron Letters, 22 May 2013, Vol.54(21), pp.2612-2614 [Peer Reviewed Journal]

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18
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ZnO nanoparticles as reusable heterogeneous catalyst for efficient one pot three component synthesis of imidazo-fused polyheterocycles

Swami, Suman ; Devi, Nisha ; Agarwala, Arunava ; Singh, Virender ; Shrivastava, Rahul

Tetrahedron Letters, 23 March 2016, Vol.57(12), pp.1346-1350 [Peer Reviewed Journal]

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19
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A one-pot, three-component, microwave-assisted synthesis of novel 7-amino-substituted 4-aminopyrazolo[1,5-a][1,3,5]triazine-8-carbonitriles

Lim, Felicia Phei Lin ; Luna, Giuseppe ; Dolzhenko, Anton V

Tetrahedron Letters, 16 December 2015, Vol.56(50), pp.7016-7019 [Peer Reviewed Journal]

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20
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A simple and efficient synthesis of new fluorophore 4-hydroxy pyrazolo[1,5-a]pyridines through a tandem reaction

Yan, Peiling ; Duan, Guiyun ; Ji, Ruixue ; Ge, Yanqing

Tetrahedron letters, 20 June 2018, Vol.59(25), pp.2426-2429 [Peer Reviewed Journal]

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21
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Divergent synthesis of withasomnines via synthesis of 4-hydroxy-1H-pyrazoles and Claisen rearrangement of their 4-O-allylethers

Ichikawa, Hayato ; Watanabe, Ryo ; Fujino, Yuiko ; Usami, Yoshihide

Tetrahedron Letters, 24 August 2011, Vol.52(34), pp.4448-4451 [Peer Reviewed Journal]

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22
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Ruthenium catalyzed desymmetrization of diazabicyclic olefins to access heteroaryl substituted cyclopentenes through C–H activation of phenylazoles

Aparna, P.S ; Prabha, B ; Prakash, Praveen ; Jijy, E ; Luxmi Varma, R ; Radhakrishnan, K.V

Tetrahedron Letters, 22 January 2014, Vol.55(4), pp.865-868 [Peer Reviewed Journal]

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23
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Unexpected formation of a 1,2-diketone from a 1,3-diketone mediated by lanthanides

Taydakov, Ilya V ; Nelyubina, Yulia V

Tetrahedron Letters, 27 March 2013, Vol.54(13), pp.1704-1706 [Peer Reviewed Journal]

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24
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Formation of dilithiated bis-(1H-pyrazol-1-yl)alkanes and their application in the synthesis of diboronic acids

Durka, Krzysztof ; Górska, Agnieszka ; Kliś, Tomasz ; Serwatowski, Janusz ; Woźniak, Krzysztof

Tetrahedron Letters, 05 February 2014, Vol.55(6), pp.1234-1238 [Peer Reviewed Journal]

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25
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Gold-catalyzed stereoselective 1,4-conjugate addition of pyrazoles to propiolates and their hydrogenation to β-pyrazolyl acid esters

Luo, Guanglin ; Chen, Ling

Tetrahedron Letters, 04 November 2015, Vol.56(45), pp.6276-6278 [Peer Reviewed Journal]

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26
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One-pot synthesis of 4-(phenylselanyl)-substituted pyrazoles

Zora, Metin ; Demirci, Deniz ; Kivrak, Arif ; Kelgokmen, Yilmaz

Tetrahedron Letters, 02 March 2016, Vol.57(9), pp.993-997 [Peer Reviewed Journal]

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27
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Synthesis and structural characterization of selected silylated or germylated pyrazoleboronic acids

Durka, Krzysztof ; Górska, Agnieszka ; Kliś, Tomasz ; Kublicki, Marcin ; Serwatowski, Janusz ; Woźniak, Krzysztof

Tetrahedron Letters, 01 April 2015, Vol.56(14), pp.1855-1859 [Peer Reviewed Journal]

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28
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An efficient and green synthesis of phthalide-fused pyrazole and pyrimidine derivatives

Motamedi, Anahita ; Sattari, Elahe ; Mirzaei, Peiman ; Armaghan, Mahsa ; Bazgir, Ayoob

Tetrahedron Letters, 09 April 2014, Vol.55(15), pp.2366-2368 [Peer Reviewed Journal]

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29
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Simple and efficient synthesis of pyrazole-fused porphyrins

Yang, Lei-Lei ; Li, Xiao-Fang ; Hu, Xiao-Lian ; Yu, Xian-Yong

Tetrahedron Letters, 16 March 2016, Vol.57(11), pp.1265-1267 [Peer Reviewed Journal]

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30
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Siamese‐Twin Porphyrin: A Pyrazole‐Based Expanded Porphyrin of Persistent Helical Conformation

Blusch, Lina K. ; Hemberger, Yasmin ; Pröpper, Kevin ; Dittrich, Birger ; Witterauf, Franziska ; John, Michael ; Bringmann, Gerhard ; Brückner, Christian ; Meyer, Franc

Chemistry – A European Journal, 03 May 2013, Vol.19(19), pp.5868-5880 [Peer Reviewed Journal]

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31
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Access to Silylated Pyrazole Derivatives by Palladium‐Catalyzed C−H Activation of a TMS group

Mistico, Laetitia ; Querolle, Olivier ; Meerpoel, Lieven ; Angibaud, Patrick ; Durandetti, Muriel ; Maddaluno, Jacques

Chemistry – A European Journal, 04 July 2016, Vol.22(28), pp.9687-9692 [Peer Reviewed Journal]

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32
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Substitution of Two Fluorine Atoms in a Trifluoromethyl Group: Regioselective Synthesis of 3‐Fluoropyrazoles

Fuchibe, Kohei ; Takahashi, Masaki ; Ichikawa, Junji

Angewandte Chemie International Edition, 26 November 2012, Vol.51(48), pp.12059-12062 [Peer Reviewed Journal]

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33
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Construction of fluorinated pyrazole derivatives via a one-pot tandem C–H insertion/electrophilic fluorination reaction

Zhang, Kai ; Zhao, Gang ; Cao, Weiguo

Tetrahedron, 02 September 2014, Vol.70(35), pp.5659-5665 [Peer Reviewed Journal]

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34
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Synthesis and characterization of two new tetrapyrazolic macrocycles for the selective extraction of cesium cation

Harit, Tarik ; Malek, Fouad ; El Bali, Brahim ; Dusek, Michal ; Kucerakova, Monika

Tetrahedron, 07 July 2016, Vol.72(27-28), pp.3966-3973 [Peer Reviewed Journal]

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35
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Synthesis of novel pyrazoles incorporating a phenothiazine moiety: unambiguous structural characterization of the regioselectivity in the 1,3-dipolar cycloaddition reaction using 2D HMBC NMR spectroscopy

Mekky, Ahmed E.M ; Saleh, Tamer S ; Al-Bogami, Abdullah S

Tetrahedron, 19 August 2013, Vol.69(33), pp.6787-6798 [Peer Reviewed Journal]

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36
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An efficient route to 3-trifluoromethylpyrazole via cyclization/1,5-H shift and its applications in the synthesis of bioactive compounds

Wang, Yongdong ; Han, Jing ; Chen, Jie ; Cao, Weiguo

Tetrahedron, 28 October 2015, Vol.71(43), pp.8256-8262 [Peer Reviewed Journal]

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37