Results 101 to 110 of about 99,145 (214)

A new chiral phosphine oxide ligand for enantioselective 1,3-dipolar cycloaddition reactions of azomethine ylides

, 2010
A new set of phosphorus-containing chiral ligands has been synthesized and used with silver(I) for the catalytic asymmetric 1 3-dipolar cycloaddition reaction of azomethine ylides One of these ligands (POFAM6) was found to produce an effective catalyst ...
Philip P. Garner, Serap Eröksüz, Özdemir Dogan, Doğan, Özdemir, Garner, Philip P., ERÖKSÜZ, Serap   +5 more
core   +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

Rhodium-catalysed Isomerisation/Formal 1,3-Dipolar Cycloaddition Cascades to Fused-ring Heterocycles

, 2012
Fused ring heterocycles were synthesised via the rhodium catalysed isomerisation/regio and stereoselective 1,3-dipolar cycloaddition cascades in good yields.
Morris, James A., Sridharan, Visuvanathar, Gorman, Ryan M., Little, Marc A.; id_orcid   +3 more
core   +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

Enantioselective Synthesis of ent-Stellettamide A via a Novel Dipolar Cycloaddition Reaction of (Trimethylsilyl)diazomethane

, 2016
Enantioselective Synthesis of ent-Stellettamide A via a Novel Dipolar Cycloaddition Reaction of (Trimethylsilyl ...
Gavin A. Whitlock (2482906), Erick M. Carreira (1330920)   +1 more
core   +1 more source

Synthesis and reinvestigation of tetrazocines [PDF]

, 2004
This thesis is concerned with the study of tetrazocines. These rare, eight-membered ring systems containing four nitrogen atoms are in the infancy of their development. Little is known of their potential application, properties and generation.
Healy, Cathal
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

Stereoselection in reactions of chiral allyl ethers: The case of 1,3-dipolar cycloaddition

, 2001
The stereochemical outcome of 1,3-dipolar cycloaddition reactions to chiral allyl ethers is described, and a proposed interpretation is ...
L. Raimondi, M. Benaglia
core   +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