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Search results for: *dipolar cycloaddition

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... mechanism, which involves a 1,3-dipolar cycloaddition, is discussed. see article ... more examples proposed mechanism Novel Pyridine-Catalyzed Reaction of Dimethyl Acetylenedicarboxylate with Aldehydes and N-Tosylimines: ...
URL: https://www.organic-chemistry.org/abstracts/literature/024.shtm
... 10.1055/s-2003-44354 Abstract A 1,3-dipolar cycloaddition of phenyl vinylic selenide to nitrile ... and subsequent oxidation-elimination furnished 3-substituted isoxazoles with good yields in a one-pot, two-step transformation ...
URL: https://www.organic-chemistry.org/abstracts/literature/279.shtm
... trimethylamine N-oxide undergoes a remarkable 1,3-dipolar cycloaddition with electron-rich and unpolarized olefins to ... challenging 3,4-disubstituted pyrrolidines in good yield. A broad range of substituents on ...
URL: https://www.organic-chemistry.org/abstracts/lit3/049.shtm
... that an organocatalyst could also mediate the dipolar cycloaddition of a diazo ester 18 to ... unsaturated aldehyde, to give 19 with high diastereo- and enantiocontrol. Francesco Fini ...
URL: https://www.organic-chemistry.org/Highlights/2010/26July.shtm
... , sulfonyl radical addition, 1,3-dipolar cycloaddition of TMSN3, and retro-1, ... cycloaddition. see article for more examples proposed mechanism Key Words amidines ( C= ...
URL: https://www.organic-chemistry.org/abstracts/lit6/682.shtm
... 137. Key Words: 1,3-DIPOLAR CYCLO-ADDITIONS/DIELS-ALDER REACTIONS/CONJUGATED NITRO ... Denmark, G. Beutner, in Cycloaddition Reactions in Organic Synthesis (Eds. ...
URL: https://www.organic-chemistry.org/abstracts/authors/denmark-s-e.shtm
... 2) cycloaddition of alkynyl esters as dipolarophiles with vinyl epoxides provides chiral dihydrofurans in ... Palladium-Catalyzed Asymmetric (3+ 2) Cycloaddition of Vinyl Epoxides with Substituted Propiolates. ...
URL: https://www.organic-chemistry.org/abstracts/lit8/328.shtm
... . A subsequent in situ 1,3-dipolar cycloaddition to alkynes provides 3-acylisoxaszoles in very ... yields. The heterogeneous catalysts can easily be recovered and reused. see article for ...
URL: https://www.organic-chemistry.org/abstracts/lit8/256.shtm
... Benzotriazoles , Click Chemistry , 1,3-dipolar Cycloaddition ID: J54-Y2008-1590 ...
URL: https://www.organic-chemistry.org/abstracts/lit2/148.shtm
... , benzo-fused N-Heterocycles , Huisgen 1,3-dipolar Cycloaddition ID: J42-Y2012-0540 ...
URL: https://www.organic-chemistry.org/abstracts/lit3/549.shtm
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