Search Results: Dipolarophile


1,3-Dipolar cycloaddition
Rabu, 2026-03-25 04:36:12

3-dipolar cycloaddition is a chemical reaction between a 1,3-dipole and a dipolarophile to form a five-membered ring. The earliest 1,3-dipolar cycloadditions...

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Nitrone-olefin (3+2) cycloaddition
Senin, 2025-10-27 16:43:00

dipole) and the dipolarophile. When R' is an electron-donating group, alkyl, or aryl, the dominant FMOs are the HOMO of the dipolarophile and the LUMO of...

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Azomethine ylide
Kamis, 2026-02-26 13:39:24

iminiums. They are often generated in situ, and immediately reacted with dipolarophiles. The resonance structures below show the 1,3-dipole contribution, in...

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Diazoalkane 1,3-dipolar cycloaddition
Minggu, 2026-03-29 15:30:53

1,3-dipole diazo compound (notably diazomethane) and a dipolarophile. When the dipolarophile is an alkene, the reaction product is a pyrazoline. The...

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Azide-alkyne Huisgen cycloaddition
Minggu, 2025-09-28 22:15:25

standard 1,3-cycloaddition between an azide 1,3-dipole and an alkene as dipolarophile has largely been ignored due to lack of reactivity as a result of electron-poor...

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DABCO
Senin, 2025-05-26 22:57:27

Synthesis of Isoxazole Derivatives from Primary Nitro Compounds and Dipolarophiles: The Role of the Base". European Journal of Organic Chemistry. 2006...

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Prato reaction
Selasa, 2025-06-24 21:14:25

A thermal cycloelimination of a pyrrolidinofullerene with a strong dipolarophile such as maleic acid and a catalyst such as Wilkinson's catalyst or copper...

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On-water reaction
Kamis, 2025-11-27 03:02:02

with triphenylphosphine to an intermediate zwitterionic allenolate, a dipolarophile for the 1,3-dipole 2-phenylnitrone. The primary regioselective [3+2]dipolar...

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Bioorthogonal chemistry
Rabu, 2026-03-25 04:46:18

reaction using a nitrile oxide as a 1,3-dipole and a norbornene as a dipolarophile. Its primary use has been in labeling DNA and RNA in automated oligonucleotide...

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Oxathiazolones
Selasa, 2025-09-09 08:06:44

dipolarophile to give stable heterocycles such as isothiazole (seen below). The intermediate has been successfully trapped using other dipolarophiles...

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Ferulic acid decarboxylase
Selasa, 2026-05-26 08:06:58

the α,β-unsaturated carboxylic acid substrate which contains a 1,3-dipolarophile. Thus, it was proposed that a 1,3-dipolar cycloaddition mechanism was...

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Azirine
Rabu, 2026-04-22 11:06:11

nitrile ylides are dipolar compounds and can be trapped by a variety of dipolarophiles to yield heterocyclic compounds, e.g. pyrrolines. The strained ring...

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Nitrile ylide
Jumat, 2026-01-02 23:36:04

reaction of the nitrile ylides is the 1,3-dipolar cycloaddition to dipolarophiles: with electron-deficient alkenes, good yields of pyrrolines are obtained...

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Thiobenzophenone
Sabtu, 2026-04-25 22:23:02

benzophenone. Thiobenzophenone (as well as other thioketones) is a dipolarophiles and dienophiles. For example, it combines with 1,3-dienes in Diels-Alder...

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Aziridines
Minggu, 2026-04-12 04:36:26

ring-opening reaction. These ylides can be trapped with a suitable dipolarophile in a 1,3-dipolar cycloaddition. When the N-substituent is an electron-withdrawing...

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Lewis acid catalysis
Sabtu, 2026-04-11 09:02:53

cycloaddition reactions, Lewis acids lower the LUMO energy of the dienophile or dipolarophile, respectively, making it more reactive toward the diene or the dipole...

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Montréalone
Jumat, 2025-05-23 04:05:48

Montréalones participate in 1,3-dipolar cycloaddition reactions with dipolarophiles such as imines, alkenes, and alkynes to respectively afford imidazoles...

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David Hodgson (chemist)
Kamis, 2022-08-25 23:54:41

cycloadditions of 2-diazo-3,6-diketoester-derived carbonyl ylides with alkene dipolarophiles". Proceedings of the National Academy of Sciences. 101 (15): 5450–5454...

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