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OpenAlex is a bibliographic catalogue of scientific papers, authors and institutions accessible in open access mode, named after the Library of Alexandria. It's citation coverage is excellent and I hope you will find utility in this listing of citing articles!

If you click the article title, you'll navigate to the article, as listed in CrossRef. If you click the Open Access links, you'll navigate to the "best Open Access location". Clicking the citation count will open this listing for that article. Lastly at the bottom of the page, you'll find basic pagination options.

Requested Article:

NHC-Catalyzed Asymmetric Formal [4 + 2] Annulation To Construct Spirocyclohexane Pyrazolone Skeletons
Chengtao Zhao, Kuangxi Shi, He Gao, et al.
Organic Letters (2019) Vol. 21, Iss. 19, pp. 7943-7947
Closed Access | Times Cited: 39

Showing 1-25 of 39 citing articles:

Asymmetric reactions of N-heterocyclic carbene (NHC)-based chiral acyl azoliums and azolium enolates
Changgui Zhao, Stephanie A. Blaszczyk, Jiaming Wang
Green Synthesis and Catalysis (2021) Vol. 2, Iss. 2, pp. 198-215
Open Access | Times Cited: 69
Generation of azolium dienolates as versatile nucleophilic synthonsvia N-heterocyclic carbene catalysis
Jian Gao, Jie Feng, Ding Du
Organic Chemistry Frontiers (2021) Vol. 8, Iss. 21, pp. 6138-6166
Closed Access | Times Cited: 58
Recent advances in the applications of pyrazolone derivatives in enantioselective synthesis
Xiaoze Bao, Xingyue Wang, Jin‐Miao Tian, et al.
Organic & Biomolecular Chemistry (2022) Vol. 20, Iss. 12, pp. 2370-2386
Closed Access | Times Cited: 41
Recent advances in the (3+2) cycloaddition of azomethine ylide
Sapana Dubey, Anit Pal, S. R. Roy, et al.
New Journal of Chemistry (2023) Vol. 47, Iss. 19, pp. 8997-9034
Closed Access | Times Cited: 21
Synthesis of difluoromethylated spiropyrazolones via [3 + 2] cycloaddition of difluoroacetohydrazonoyl bromides with alkylidene pyrazolones
Yang Feng, Yuanyuan Ren, Duoduo Tang, et al.
Organic & Biomolecular Chemistry (2024) Vol. 22, Iss. 14, pp. 2797-2812
Closed Access | Times Cited: 5
Asymmetric Synthesis of Spiropyrazolones via Chiral Pd(0)/Ligand Complex-Catalyzed Formal [4+2] Cycloaddition of Vinyl Benzoxazinanones with Alkylidene Pyrazolones
Jia‐Ming Guo, Xiao‐Zu Fan, Huihui Wu, et al.
The Journal of Organic Chemistry (2020) Vol. 86, Iss. 2, pp. 1712-1720
Closed Access | Times Cited: 31
Recent Advances in Catalytic Enantioselective Synthesis of Pyrazolones with a Tetrasubstituted Stereogenic Center at the 4-Position
José R. Pedro, Carlos Vila, Laura Carceller‐Ferrer, et al.
Synthesis (2020) Vol. 53, Iss. 02, pp. 215-237
Closed Access | Times Cited: 30
Recent advances of N-heterocyclic carbenes in the applications of constructing carbo- and heterocyclic frameworks with potential biological activity
Meimei Li, Xiao-Zhen Chen, Yun Deng, et al.
RSC Advances (2021) Vol. 11, Iss. 60, pp. 38060-38078
Open Access | Times Cited: 26
Asymmetric Construction of Bispiro‐Cyclopropane‐Pyrazolones via a [2+1] Cyclization Reaction by Dipeptide‐Based Phosphonium Salt Catalysis
Dongming Lu, Xin Liu, Jia‐Hong Wu, et al.
Advanced Synthesis & Catalysis (2020) Vol. 362, Iss. 10, pp. 1966-1971
Closed Access | Times Cited: 24
Regiodivergent Synthesis of 4,5′- and 4,4′-Imidazolinyl Spiropyrazolones from 4-Alkylidene Pyrazolones and Amidines
Hui Xu, Ran Hong, Ming-Yue Weng, et al.
Organic Letters (2021) Vol. 23, Iss. 14, pp. 5305-5310
Closed Access | Times Cited: 22
NHC‐Activations on α‐, β‐, γ‐, and Beyond
Xiaoyu Chen, Pengyu He, Siqi Xia, et al.
The Chemical Record (2023) Vol. 23, Iss. 7
Closed Access | Times Cited: 8
N-Heterocyclic carbene catalyzed asymmetric [3 + 3] cycloaddtion of β,β-disubstituted, α,β-unsaturated carboxylic esters with 3-aminobenzofurans
Chonglong He, Yipeng Zhou, Zhanhuan Li, et al.
Organic Chemistry Frontiers (2021) Vol. 8, Iss. 7, pp. 1569-1574
Closed Access | Times Cited: 18
Stereoselective N-Heterocyclic-Carbene-Catalyzed Formal [4 + 2] Cycloaddition: Access to Chiral Heterocyclic Cyclohexenones
Ladislav Lóška, Vojtěch Dočekal, Ivana Cı́sařová, et al.
Organic Letters (2023) Vol. 25, Iss. 1, pp. 174-178
Open Access | Times Cited: 7
Access to Spiropyrazolone-butenolides through NHC-Catalyzed [3 + 2]-Asymmetric Annulation of 3-Bromoenals and 1H-Pyrazol-4,5-diones
Marta Gil‐Ordóñez, Alicia Maestro, José M. Andrés
The Journal of Organic Chemistry (2023) Vol. 88, Iss. 11, pp. 6890-6900
Open Access | Times Cited: 7
Diastereo- and Enantioselective Chemodivergent Three-Component Cascade Reactions via Gold and Carbene Sequential Catalysis
Shulei Zhang, Shaojie Wang, Xiaolan Xin, et al.
ACS Catalysis (2024) Vol. 14, Iss. 12, pp. 9275-9282
Closed Access | Times Cited: 2
Asymmetric Organocatalytic [4 + 1] Annulations Involving a Polarity Reversal Process: A Tandem Catalytic Approach to Highly Functionalized Spiropyrazolone Derivatives
Chang‐Yin Tan, Hong Lu, Jialü Zhang, et al.
The Journal of Organic Chemistry (2019) Vol. 85, Iss. 2, pp. 594-602
Closed Access | Times Cited: 21
Highly Chemoselective and Enantioselective Synthesis of 3,4-2H-Pyrindin-2-ones by an NHC-Catalyzed [3 + 3] Cyclization
Jun Yan, Zhao‐Xin Song, Chengtao Zhao, et al.
Organic Letters (2020) Vol. 22, Iss. 9, pp. 3329-3334
Closed Access | Times Cited: 19
NHC-catalysed [3 + 2]-asymmetric annulation between pyrazolin-4,5-diones and enals: synthesis of novel spirocyclic pyrazolone γ-butyrolactones and computational study of mechanism and stereoselectivity
Marta Gil‐Ordóñez, Alicia Maestro, Pablo Ortega, et al.
Organic Chemistry Frontiers (2021) Vol. 9, Iss. 2, pp. 420-427
Open Access | Times Cited: 16
N-Heterocyclic Carbene-Catalyzed [3 + 2] Annulation of 3,3′-Bisoxindoles with α-Bromoenals: Enantioselective Construction of Contiguous Quaternary Stereocenters
Binghao Liu, Xiaoyong Duan, Jiahan Li, et al.
Organic Letters (2022) Vol. 24, Iss. 32, pp. 5929-5934
Closed Access | Times Cited: 11
NIS-Promoted Chemodivergent and Diastereoselective Synthesis of Pyrrolinyl and Cyclopentenyl Spiropyrazolones via Regulated Cyclization of Alkylidene Pyrazolones with Enamino Esters
Hui Xu, Ming-Yue Weng, Peng Xu, et al.
The Journal of Organic Chemistry (2024) Vol. 89, Iss. 12, pp. 9051-9055
Closed Access | Times Cited: 2
Organocatalytic (5+1) benzannulation of Morita–Baylis–Hillman carbonates: synthesis of multisubstituted 4-benzylidene pyrazolones
Shurong He, Jie Wang, Jinfeng Zheng, et al.
New Journal of Chemistry (2022) Vol. 46, Iss. 24, pp. 11617-11622
Closed Access | Times Cited: 10
Enantioselective Synthesis of Spiropyrazolone-Fused Cyclopenta[c]chromen-4-ones Bearing Five Contiguous Stereocenters via (3+2) Cycloaddition
Pankaj V. Khairnar, Yin-Hsiang Su, Athukuri Edukondalu, et al.
The Journal of Organic Chemistry (2021) Vol. 86, Iss. 17, pp. 12326-12335
Closed Access | Times Cited: 11
Asymmetric Addition and Cycloaddition Reactions with Ylidene‐Five‐Membered Heterocycles
Ricardo Torán, Rubén Miguélez, Amparo Sanz‐Marco, et al.
Advanced Synthesis & Catalysis (2021) Vol. 363, Iss. 23, pp. 5196-5234
Open Access | Times Cited: 10
Asymmetric [4 + 2] Annulation of Cyclobutenones and Pyrazolone 4,5-Diones: Access to Novel δ-Lactone-Fused Spiropyrazolones
Rui Qin, Ting-Ting Yu, Shuai‐Jiang Liu, et al.
The Journal of Organic Chemistry (2022) Vol. 87, Iss. 8, pp. 5358-5370
Closed Access | Times Cited: 7
α‐Amino Acids Mediated C−C Double Bonds Cleavage in Diastereoselective Synthesis of Aza‐Spirocyclic Pyrazolones
Annapurna Awasthi, Pushpendra Yadav, Virendra Kumar, et al.
Advanced Synthesis & Catalysis (2020) Vol. 362, Iss. 20, pp. 4378-4383
Closed Access | Times Cited: 10
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