Results 111 to 120 of about 93,979 (223)

Decarboxylative 1,3-dipolar cycloaddition of amino acids for the synthesis of heterocyclic compounds. [PDF]

Beilstein J Org Chem, 2023
Zhang X, Ma X, Zhang W.
europepmc   +1 more source

Asymmetric formal [1 + 2 + 2]-cycloaddition of diazoamides with enamines and carbonyl compounds

Nature Communications
Cycloaddition reaction offers an ideal and powerful method for the construction of cyclic structures with molecular complexity and diversity.
Shanliang Dong, Minghan Yao, Yunzhe Wang, Xiongda Xie, Xinyu Jiang, Xinfang Xu   +5 more
doaj   +1 more source

Highly Regioselective 1,3-Dipolar Cycloaddition of Nitrilimines and Thioaurones Towards Spiro-2-Pyrazolines: Synthesis, Characterization, and Mechanistic Study

Reactions
In this paper, we report a highly regioselective 1,3-dipolar cycloaddition (1,3-DC) reaction of nitrilimines with thioaurone derivatives that afforded the hitherto unreported spiropyrazolines. Spectroscopic and spectrometric data were utilized to confirm
Mohamed Bakhouch, Bouchra Es-Sounni, Ayoub Ouaddi, Khaoula Oudghiri, Mohammed Chalkha, Lahoucine Bahsis, Taoufiq Benali, Mohamed Bourass, Rabiaa Fdil, Mohamed Akhazzane, Mohamed El Yazidi   +10 more
doaj   +1 more source

Copper(I)-catalyzed asymmetric 1,3-dipolar cycloaddition of 1,3-enynes and azomethine ylides. [PDF]

Nat Commun, 2023
Wang BR, Li YB, Zhang Q, Gao D, Tian P, Li Q, Yin L.   +6 more
europepmc   +1 more source

One-flask synthesis of 1,3,5-trisubstituted 1,2,4- triazoles from nitriles and hydrazonoyl chlorides via 1,3-dipolar cycloaddition

, 2014
[[abstract]]A new “one-flask” synthesis of 3,5-disubstituted 1,2,4-triazoles has successfully been developed to synthesize a series of 3,5-disubstituted 1,2,4-triazoles.
Wang, Li-Ya;Wang, Li-Ya;蔡建鈞;Tsai, Henry J;Lin, Hui-Yi;Lin, Hui-Yi;Ka, Kimiyoshi;Kaneko, Kimiyoshi;Che, Fen-Ying;Cheng, Fen-Ying;Sh, Hsin-Siao;Shih, Hsin-Siao;Won, Fung Fuh;Wong, Fung Fuh;Hu, Jiann-Jyh;Huang, Jiann-Jyh
core  

Diastereoselective Formal 1,3-Dipolar Cycloaddition of Trifluoroethyl Amine-Derived Ketimines Enables the Desymmetrization of Cyclopentenediones. [PDF]

Molecules, 2023
Li LQ, Zhao JQ, Zhang YP, You Y, Wang ZH, Ge ZZ, Zhou MQ, Yuan WC.   +7 more
europepmc   +1 more source

Huisgen 3 + n Dipolar Cycloaddition Reactions: An Accessible and Useful Tool in Modern Organic and Heterocycle Synthesis. [PDF]

Molecules, 2023
Mangalagiu II.
europepmc   +1 more source

Estudo das reações do acido de meldrum a bases de Schiff aromaticas [PDF]

, 1997
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciencias Fisicas e MatematicasOs compostos imínicos possuem reatividade semelhante a dos compostos carbonílicos, ambos apresentam ligações heteropolares insaturadas.
Rosa, Flavia Aparecida Fernandes da
core  

Stereoselective intramolecular azide 1,3-dipolar cycloaddition

, 2003
Ethyl (E)-7-azido-6-[bis(tert-butoxycarbonyl)amino]-2-heptenoate undergoes a stereoselective intramolecular azide 1,3-dipolar cycloaddition leading to a stable triazoline.
Kokotos, G., Markidis, T., Mikros, E.
core   +1 more source

The 1,3-Dipolar Cycloaddition: From Conception to Quantum Chemical Design. [PDF]

Chem Asian J, 2022
Beutick SE, Vermeeren P, Hamlin TA.
europepmc   +1 more source