To see the other types of publications on this topic, follow the link: Pyrazolidines.

Journal articles on the topic 'Pyrazolidines'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Pyrazolidines.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Fernández, Maitane, Efraím Reyes, Jose L. Vicario, Dolores Badía, and Luisa Carrillo. "Organocatalytic Enantioselective Synthesis of Pyrazolidines, Pyrazolines and Pyrazolidinones." Advanced Synthesis & Catalysis 354, no. 2-3 (2012): 371–76. http://dx.doi.org/10.1002/adsc.201100722.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Geng, Zhi-Cong, Jian Chen, Ning Li та ін. "Organocatalytic cascade aza-Michael/hemiacetal reaction between disubstituted hydrazines and α,β-unsaturated aldehydes: Highly diastereo- and enantioselective synthesis of pyrazolidine derivatives". Beilstein Journal of Organic Chemistry 8 (9 жовтня 2012): 1710–20. http://dx.doi.org/10.3762/bjoc.8.195.

Full text
Abstract:
The catalytic synthesis of nitrogen-containing heterocycles is of great importance to medicinal and synthetic chemists, and also a challenge for modern chemical methodology. In this paper, we report the synthesis of pyrazolidine derivatives through a domino aza-Michael/hemiacetal sequence with chiral or achiral secondary amines as organocatalysts. Thus, a series of achiral pyrazolidine derivatives were obtained with good yields (up to 90%) and high diastereoselectivities (>20:1) with pyrrolidine as an organocatalyst, and enantioenriched pyrazolidines are also achieved with good results (up
APA, Harvard, Vancouver, ISO, and other styles
3

Fernandez, Maitane, Efraim Reyes, Jose L. Vicario, Dolores Badia, and Luisa Carrillo. "ChemInform Abstract: Organocatalytic Enantioselective Synthesis of Pyrazolidines, Pyrazolines and Pyrazolidinones." ChemInform 43, no. 26 (2012): no. http://dx.doi.org/10.1002/chin.201226120.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Huang, Zhimei, Junhao Hu, and Yuefa Gong. "Formation and aromatization of strained bicyclic pyrazolidines via tandem reaction of alkyl 2-aroyl-1-chlorocyclopropanecarboxylates with acylhydrazones." Organic & Biomolecular Chemistry 13, no. 31 (2015): 8561–66. http://dx.doi.org/10.1039/c5ob01199j.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Nájera, Carmen, José M. Sansano, and Miguel Yus. "1,3-Dipolar cycloadditions of azomethine imines." Organic & Biomolecular Chemistry 13, no. 32 (2015): 8596–636. http://dx.doi.org/10.1039/c5ob01086a.

Full text
Abstract:
Azomethine imines react with alkenes and alkynes to give pyrazolines, pyrazolidines, pyrazolopyridines, indazoloisoquinolines, pyrazolo[1,5-a]isoquinolines and pyrazolopyrazolones through regio-, stereo- and enantioselective 1,3-dipolar cycloadditions.
APA, Harvard, Vancouver, ISO, and other styles
6

Wagner, Bernd, Wolf Hiller, Hiroaki Ohno, and Norbert Krause. "Gold-catalyzed three-component spirocyclization: a one-pot approach to functionalized pyrazolidines." Organic & Biomolecular Chemistry 14, no. 5 (2016): 1579–83. http://dx.doi.org/10.1039/c5ob02453f.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Peng, Xiansha, Danfeng Huang, Ke-Hu Wang, et al. "Synthesis of trifluoromethylated pyrazolidines by [3 + 2] cycloaddition." Organic & Biomolecular Chemistry 15, no. 29 (2017): 6214–22. http://dx.doi.org/10.1039/c7ob01299c.

Full text
Abstract:
[3 + 2] cycloaddition between trifluoromethylated N-acylhydrazones and nitroolefins in the presence of potassium hydroxide and Bu<sub>4</sub>NI is developed to afford potentially bioactive trifluoromethylated pyrazolidines.
APA, Harvard, Vancouver, ISO, and other styles
8

Davis, Lindsey O., William F. M. Daniel, and Suzanne L. Tobey. "Phosphonic acid catalyzed synthesis of pyrazolidines." Tetrahedron Letters 53, no. 5 (2012): 522–25. http://dx.doi.org/10.1016/j.tetlet.2011.11.083.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Wen, Lan, Danfeng Huang, Ke-Hu Wang, et al. "[3+2] Cycloaddition of Trifluoromethylated N-Acylhydrazones with Maleates: Synthesis of Trifluoromethylated Pyrazolidines." Synthesis 50, no. 10 (2018): 1979–90. http://dx.doi.org/10.1055/s-0036-1591768.

Full text
Abstract:
An efficient [3+2] cycloaddition reaction of trifluoromethylated N-acylhydrazones with dimethyl maleate has been developed under basic conditions. This protocol provides an easy access to potentially bioactive trifluoromethylated pyrazolidines in moderate to excellent yields. It also illustrates that the trifluoromethylated N-acylhydrazones are useful trifluoromethyl building blocks for the synthesis of trifluoromethylated N-heterocycles.
APA, Harvard, Vancouver, ISO, and other styles
10

Chaudhry, Faryal, Benson M. Kariuki, and David W. Knight. "A new method for the synthesis of pyrazolidines." Tetrahedron Letters 57, no. 26 (2016): 2833–37. http://dx.doi.org/10.1016/j.tetlet.2016.05.011.

Full text
APA, Harvard, Vancouver, ISO, and other styles
11

Davis, Lindsey O., William F. M. Daniel, and Suzanne L. Tobey. "ChemInform Abstract: Phosphonic Acid Catalyzed Synthesis of Pyrazolidines." ChemInform 43, no. 21 (2012): no. http://dx.doi.org/10.1002/chin.201221108.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Petek, Nejc, Uroš Grošelj, Jurij Svete, Franc Požgan, Drago Kočar, and Bogdan Štefane. "Eosin Y-Catalyzed Visible-Light-Mediated Aerobic Transformation of Pyrazolidine-3-One Derivatives." Catalysts 10, no. 9 (2020): 981. http://dx.doi.org/10.3390/catal10090981.

Full text
Abstract:
By utilizing an underexplored reactivity of N1-substituted pyrazolidine-3-ones, we developed a visible-light-induced aerobic oxidation of N1-substituted pyrazolidine-3-one derivatives yielding the corresponding azomethine imines. The resulting azomethine imines can be further reacted with ynones in situ under copper catalyzed [3 + 2] cycloaddition reaction conditions yielding the corresponding pyrazolo[1,2-a]pyrazoles in good yields. The methodology can be extended to other 1-aryl-substituted pyrazolidinones which undergo endocyclic oxidation deriving the corresponding pyrazolones as single pr
APA, Harvard, Vancouver, ISO, and other styles
13

Liu, Lili, Danfeng Huang, Yuxiang Wang, et al. "A Facile Synthesis of CF3-Substituted Pyrazolidines and Pyrazolines." Chinese Journal of Organic Chemistry 38, no. 6 (2018): 1469. http://dx.doi.org/10.6023/cjoc201712036.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Yousfi, Tarek, Alysha Elliott, Messiad Hanane, Rachid Merdes, and Albert Moyano. "Expedient Organocatalytic Syntheses of 4-Substituted Pyrazolidines and Isoxazolidines." Molecules 21, no. 12 (2016): 1655. http://dx.doi.org/10.3390/molecules21121655.

Full text
APA, Harvard, Vancouver, ISO, and other styles
15

Usachev, Sergey V., Grygorii A. Nikiforov, Konstatin A. Lyssenko, Yulia V. Nelubina, Pavel A. Levkin, and Remir G. Kostyanovsky. "Sterically hindered and completely arrested nitrogen inversion in pyrazolidines." Tetrahedron: Asymmetry 18, no. 13 (2007): 1540–47. http://dx.doi.org/10.1016/j.tetasy.2007.06.022.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Jakob, Florian, Eberhardt Herdtweck, and Thorsten Bach. "Synthesis and Properties of Chiral Pyrazolidines Derived from (+)-Pulegone." Chemistry - A European Journal 16, no. 25 (2010): 7537–46. http://dx.doi.org/10.1002/chem.201000219.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Chauveau, A., T. Martens, M. Bonin, L. Micouin, and H. P. Husson. "Asymmetric Synthesis of Densely Functionalized Pyrazolidines and 1,3-Diamines." ChemInform 34, no. 1 (2003): no. http://dx.doi.org/10.1002/chin.200301116.

Full text
APA, Harvard, Vancouver, ISO, and other styles
18

Wagner, Bernd, Katrin Belger, Stefan Minkler, Volker Belting, and Norbert Krause. "Sustainable gold catalysis: synthesis of new spiroacetals." Pure and Applied Chemistry 88, no. 4 (2016): 391–99. http://dx.doi.org/10.1515/pac-2016-0406.

Full text
Abstract:
AbstractVarious [O,O]- and [N,O]-spiroacetals were synthesized by gold-catalyzed spirocyclization of suitable functionalized alkynes. Whereas simple spiroacetals with two heteroatoms were readily obtained by regioselective cyclization of acetylenic diols or aminoalcohols, hitherto unknown spirocyclic isoxazolidines and pyrazolidines bearing three heteroatoms were formed by three-component coupling of alkynols, aldehydes, and protected hydroxylamine or hydrazine derivatives. The sustainability of these spirocyclizations was improved by using recyclable gold catalysts in water or nanomicelles as
APA, Harvard, Vancouver, ISO, and other styles
19

Vertesaljai, Peter, Iryna O. Lebedyeva, Alexander A. Oliferenko, et al. "Mimicking a proline tripeptide with pyrazolidines and a cyclopentane linker." Tetrahedron Letters 56, no. 48 (2015): 6653–55. http://dx.doi.org/10.1016/j.tetlet.2015.09.063.

Full text
APA, Harvard, Vancouver, ISO, and other styles
20

Katritzky, Alan R., Guofang Qiu, and Baozhen Yang. "Preparations of Trisubstituted Hydrazines and Pyrazolidines fromN-(1-Benzotriazolylalkyl)hydrazines." Journal of Organic Chemistry 62, no. 23 (1997): 8210–14. http://dx.doi.org/10.1021/jo9709110.

Full text
APA, Harvard, Vancouver, ISO, and other styles
21

LaLonde, R. L., Z. J. Wang, M. Mba, A. D. Lackner, and F. Dean Toste. "Gold(I)-Catalyzed Enantioselective Synthesis of Pyrazolidines, Isoxazolidines, and Tetrahydrooxazines." Angewandte Chemie International Edition 49, no. 3 (2009): 598–601. http://dx.doi.org/10.1002/anie.200905000.

Full text
APA, Harvard, Vancouver, ISO, and other styles
22

LaLonde, R. â€ L, Z. â€ J Wang, M. Mba, A. â€ D Lackner, and F. â€ Dean Toste. "Gold(I)-Catalyzed Enantioselective Synthesis of Pyrazolidines, Isoxazolidines, and Tetrahydrooxazines." Angewandte Chemie 122, no. 3 (2010): 608–11. http://dx.doi.org/10.1002/ange.200905000.

Full text
APA, Harvard, Vancouver, ISO, and other styles
23

Davis, Lindsey O. "Recent Developments in the Synthesis and Applications of Pyrazolidines. A Review." Organic Preparations and Procedures International 45, no. 6 (2013): 437–64. http://dx.doi.org/10.1080/00304948.2013.834769.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Guerrand, Hélène D. S., Harry Adams, and Iain Coldham. "Cascade cyclization, dipolar cycloaddition of azomethine imines for the synthesis of pyrazolidines." Organic & Biomolecular Chemistry 9, no. 22 (2011): 7921. http://dx.doi.org/10.1039/c1ob06122d.

Full text
APA, Harvard, Vancouver, ISO, and other styles
25

Brugel, Todd A., Tomas Hudlicky, Michael P. Clark, et al. "Convergent synthesis of 2,3-bisarylpyrazolones through cyclization of bisacylated pyrazolidines and hydrazines." Tetrahedron Letters 47, no. 19 (2006): 3195–98. http://dx.doi.org/10.1016/j.tetlet.2006.03.063.

Full text
APA, Harvard, Vancouver, ISO, and other styles
26

LaLonde, R. L., Z. J. Wang, M. Mba, A. D. Lackner, and F. Dean Toste. "ChemInform Abstract: Gold(I)-Catalyzed Enantioselective Synthesis of Pyrazolidines, Isoxazolidines, and Tetrahydrooxazines." ChemInform 41, no. 21 (2010): no. http://dx.doi.org/10.1002/chin.201021031.

Full text
APA, Harvard, Vancouver, ISO, and other styles
27

Kalandarishvili, A. G., P. B. Terent'ev, S. V. Afanas'eva, et al. "Mass spectrometric study of ring-chain tautomers of 3-amino(hydroxy)pyrazolidines." Chemistry of Heterocyclic Compounds 22, no. 10 (1986): 1080–83. http://dx.doi.org/10.1007/bf00473482.

Full text
APA, Harvard, Vancouver, ISO, and other styles
28

KATRITZKY, A. R., G. QIU, and B. YANG. "ChemInform Abstract: Preparations of Trisubstituted Hydrazines and Pyrazolidines from N-(1-Benzotriazolylalkyl)hydrazines." ChemInform 29, no. 17 (2010): no. http://dx.doi.org/10.1002/chin.199817137.

Full text
APA, Harvard, Vancouver, ISO, and other styles
29

Davis, Lindsey O. "ChemInform Abstract: Recent Developments in the Synthesis and Applications of Pyrazolidines. A Review." ChemInform 45, no. 9 (2014): no. http://dx.doi.org/10.1002/chin.201409249.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

Bañuelos, Luis A., Purificación Cuadrado, Ana M. González-Nogal, Isabel López-Solera, Francisco J. Pulido, and Paul R. Raithby. "The reduction of functionalized pyrazolium salts as a stereoselective route to functionalized pyrazolidines." Tetrahedron 52, no. 27 (1996): 9193–206. http://dx.doi.org/10.1016/0040-4020(96)00470-x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Sviridova, L. A., G. A. Golubeva, A. N. Tavtorkin, and K. A. Kochetkov. "A new method for the synthesis of pyrazolidines with N-amino acid substitutents." Chemistry of Heterocyclic Compounds 44, no. 3 (2008): 368–69. http://dx.doi.org/10.1007/s10593-008-0055-z.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

Moldarev, B. L., M. E. Aronzon, V. M. Adanin, and A. M. Zyakun. "Chemistry of the pyrazolidines. 26. Alkylation of 4-benzyliden-1-phenyl-3.5-dioxopyrazolidines." Chemistry of Heterocyclic Compounds 22, no. 2 (1986): 176–80. http://dx.doi.org/10.1007/bf00519939.

Full text
APA, Harvard, Vancouver, ISO, and other styles
33

S. Ghabrial, Sami, Hussein H. Moharram, and Suzan I. Aziz. "Reactions with Maleimides: Synthesis of Several New Fused Pyrazolidines, D2-Pyrazoline and Pyrazole Derivatives." HETEROCYCLES 23, no. 5 (1985): 1161. http://dx.doi.org/10.3987/r-1985-05-1161.

Full text
APA, Harvard, Vancouver, ISO, and other styles
34

Požgan, Franc, Hamad Al Mamari, Uroš Grošelj, Jurij Svete, and Bogdan Štefane. "Synthesis of Non-Racemic Pyrazolines and Pyrazolidines by [3+2] Cycloadditions of Azomethine Imines." Molecules 23, no. 1 (2017): 3. http://dx.doi.org/10.3390/molecules23010003.

Full text
APA, Harvard, Vancouver, ISO, and other styles
35

Bahule, B. B. "Synthesis of Pyrazolidines (5-membered heterocyclic rings) through 1, 3- dipolar cycloadditions of azomethine imines." IOSR Journal of Applied Chemistry 2, no. 6 (2012): 39–40. http://dx.doi.org/10.9790/5736-0263940.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

BANUELOS, L. A., P. CUADRADO, A. M. GONZALEZ-NOGAL, I. LOPEZ-SOLERA, F. J. PULIDO, and P. R. RAITHBY. "ChemInform Abstract: The Reduction of Functionalized Pyrazolium Salts as a Stereoselective Route to Functionalized Pyrazolidines." ChemInform 27, no. 45 (2010): no. http://dx.doi.org/10.1002/chin.199645151.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Tiecco, Marcello, Lorenzo Testaferri, and Francesca Marini. "Stereoselective organoselenium-induced cyclization of N-allyl acethydrazides to 1,3,4-oxadiazines or N-acetyl pyrazolidines." Tetrahedron 52, no. 36 (1996): 11841–48. http://dx.doi.org/10.1016/0040-4020(96)00675-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
38

Sviridova, Ludmila A., Galina A. Golubeva, Alexander N. Tavtorkin, and Konstantin A. Kochetkov. "Synthesis of hydroxydiamines and triamines via reductive cleavage of N–N bond in substituted pyrazolidines." Amino Acids 43, no. 3 (2012): 1225–31. http://dx.doi.org/10.1007/s00726-011-1187-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
39

Korotaev, Vladislav Yu, Igor B. Kutyashev, Vyacheslav Ya Sosnovskikh, and Mikhail I. Kodess. "Stereoselective synthesis of N-unsubstituted pyrazolidines from 3-nitro-2-trichloromethyl-2H-chromenes and hydrazine hydrate." Mendeleev Communications 17, no. 1 (2007): 52–53. http://dx.doi.org/10.1016/j.mencom.2007.01.021.

Full text
APA, Harvard, Vancouver, ISO, and other styles
40

TIECCO, M., L. TESTAFERRI, and F. MARINI. "ChemInform Abstract: Stereoselective Organoselenium-Induced Cyclization of N-Allyl Acethydrazides to 1,3,4-Oxadiazines or N-Acetyl Pyrazolidines." ChemInform 27, no. 52 (2010): no. http://dx.doi.org/10.1002/chin.199652185.

Full text
APA, Harvard, Vancouver, ISO, and other styles
41

Bañuelos, Luis A., Purificaciön Cuadrado, Ana M. González, and Francisco J. Pulido. "REDUCTION OF 3- AND/OR 5-UNSUBSTITUTED 2-ETHYLPYRAZOLIUM SALTS WITH COMPLEX METAL HYDRIDES. SYNTHESIS OF PYRAZOLIDINES." Organic Preparations and Procedures International 24, no. 2 (1992): 181–85. http://dx.doi.org/10.1080/00304949209355694.

Full text
APA, Harvard, Vancouver, ISO, and other styles
42

Sviridova, L. A., G. A. Golubeva, A. V. Mizgunov, I. V. Dlinnykh та V. N. Nesterov. "Interaction of 1-acetyl-2-phenyl-5-hydroxy-pyrazolidines withβ-substituted esters on the surface of adsorbents". Chemistry of Heterocyclic Compounds 33, № 4 (1997): 435–40. http://dx.doi.org/10.1007/bf02321388.

Full text
APA, Harvard, Vancouver, ISO, and other styles
43

S. B. Kalaskar, S. B. Kalaskar, B. B. Bahule B. B. Bahule, and Y. M. Nandurkar Y. M. Nandurkar. "A Novel One Pot Synthesis of Several 1(2,4 Dinitro Phenyl) – 3 Phenyl – 4 Methoxy Carbonyl Pyrazolidines Via 1,3 – Dipolar Cycloaddition Approach." International Journal of Scientific Research 3, no. 6 (2012): 70. http://dx.doi.org/10.15373/22778179/june2014/26.

Full text
APA, Harvard, Vancouver, ISO, and other styles
44

Cuadrado, Purificación, Ana M. González-Nogal, and Senén Martínez. "Reactions of pyrazoles and pyrazolium salts with complex metal hydrides and organometallic reagents. Synthesis of pyrazolines and pyrazolidines." Tetrahedron 53, no. 25 (1997): 8585–98. http://dx.doi.org/10.1016/s0040-4020(97)00514-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
45

de los Santos, Jesús M., Yago López, Domitila Aparicio, and Francisco Palacios. "A Convenient Synthesis of Substituted Pyrazolidines and Azaproline Derivatives through Highly Regio- and Diastereoselective Reduction of 2-Pyrazolines." Journal of Organic Chemistry 73, no. 2 (2008): 550–57. http://dx.doi.org/10.1021/jo702050t.

Full text
APA, Harvard, Vancouver, ISO, and other styles
46

Rueping, Magnus, Modhu Sudan Maji, Hatice Başpınar Küçük, and Iuliana Atodiresei. "Asymmetric Brønsted Acid Catalyzed Cycloadditions-Efficient Enantioselective Synthesis of Pyrazolidines, Pyrazolines, and 1,3-Diamines fromN-Acyl Hyrazones and Alkenes." Angewandte Chemie International Edition 51, no. 51 (2012): 12864–68. http://dx.doi.org/10.1002/anie.201205813.

Full text
APA, Harvard, Vancouver, ISO, and other styles
47

BANUELOS, L. A., P. CUADRADO, A. M. GONZALEZ, and F. J. PULIDO. "ChemInform Abstract: Reduction of 3- and/or 5-Unsubstituted 2-Ethylpyrazolium Salts with Complex Metal Hydrides. Synthesis of Pyrazolidines." ChemInform 23, no. 36 (2010): no. http://dx.doi.org/10.1002/chin.199236154.

Full text
APA, Harvard, Vancouver, ISO, and other styles
48

Kostyuchenko, I. V., E. V. Shulishov, V. A. Korolev, V. A. Dokichev, and Yu V. Tomilov. "Reduction of substituted spiro[cyclopropane-3-(1-pyrazolines)] to spiro[cyclopropane-3-pyrazolidines] and 1-(2-aminoethyl)cyclopropylamine derivatives." Russian Chemical Bulletin 54, no. 11 (2005): 2562–70. http://dx.doi.org/10.1007/s11172-006-0156-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

CUADRADO, P., A. M. GONZALEZ-NOGAL, and S. MARTINEZ. "ChemInform Abstract: Reactions of Pyrazoles and Pyrazolium Salts with Complex Metal Hydrides and Organometallic Reagents. Synthesis of Pyrazolines and Pyrazolidines." ChemInform 28, no. 43 (2010): no. http://dx.doi.org/10.1002/chin.199743136.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Guerra, F. M., M. R. Mish, and E. M. Carreira. "Versatile, Diastereoselective Additions of Silyl Ketene Acetals, Allyl Tributylstannane, and Me3SiCN toN-Acyl Pyrazolines: Asymmetric Synthesis of Densely Functionalized Pyrazolidines." Organic Letters 2, no. 26 (2000): 4265–67. http://dx.doi.org/10.1021/ol006873f.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!