Search Results: Dipolarophile
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1,3-Dipolar cycloaddition
Rabu, 2026-03-25 04:36:123-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...
Click to read more »Nitrone-olefin (3+2) cycloaddition
Senin, 2025-10-27 16:43:00dipole) 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...
Click to read more »Azomethine ylide
Kamis, 2026-02-26 13:39:24iminiums. They are often generated in situ, and immediately reacted with dipolarophiles. The resonance structures below show the 1,3-dipole contribution, in...
Click to read more »Diazoalkane 1,3-dipolar cycloaddition
Minggu, 2026-03-29 15:30:531,3-dipole diazo compound (notably diazomethane) and a dipolarophile. When the dipolarophile is an alkene, the reaction product is a pyrazoline. The...
Click to read more »Azide-alkyne Huisgen cycloaddition
Minggu, 2025-09-28 22:15:25standard 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...
Click to read more »DABCO
Senin, 2025-05-26 22:57:27Synthesis of Isoxazole Derivatives from Primary Nitro Compounds and Dipolarophiles: The Role of the Base". European Journal of Organic Chemistry. 2006...
Click to read more »Prato reaction
Selasa, 2025-06-24 21:14:25A thermal cycloelimination of a pyrrolidinofullerene with a strong dipolarophile such as maleic acid and a catalyst such as Wilkinson's catalyst or copper...
Click to read more »On-water reaction
Kamis, 2025-11-27 03:02:02with triphenylphosphine to an intermediate zwitterionic allenolate, a dipolarophile for the 1,3-dipole 2-phenylnitrone. The primary regioselective [3+2]dipolar...
Click to read more »Bioorthogonal chemistry
Rabu, 2026-03-25 04:46:18reaction 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...
Click to read more »Oxathiazolones
Selasa, 2025-09-09 08:06:44dipolarophile to give stable heterocycles such as isothiazole (seen below). The intermediate has been successfully trapped using other dipolarophiles...
Click to read more »Ferulic acid decarboxylase
Selasa, 2026-05-26 08:06:58the α,β-unsaturated carboxylic acid substrate which contains a 1,3-dipolarophile. Thus, it was proposed that a 1,3-dipolar cycloaddition mechanism was...
Click to read more »Azirine
Rabu, 2026-04-22 11:06:11nitrile ylides are dipolar compounds and can be trapped by a variety of dipolarophiles to yield heterocyclic compounds, e.g. pyrrolines. The strained ring...
Click to read more »Nitrile ylide
Jumat, 2026-01-02 23:36:04reaction of the nitrile ylides is the 1,3-dipolar cycloaddition to dipolarophiles: with electron-deficient alkenes, good yields of pyrrolines are obtained...
Click to read more »Thiobenzophenone
Sabtu, 2026-04-25 22:23:02benzophenone. Thiobenzophenone (as well as other thioketones) is a dipolarophiles and dienophiles. For example, it combines with 1,3-dienes in Diels-Alder...
Click to read more »Aziridines
Minggu, 2026-04-12 04:36:26ring-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...
Click to read more »Lewis acid catalysis
Sabtu, 2026-04-11 09:02:53cycloaddition reactions, Lewis acids lower the LUMO energy of the dienophile or dipolarophile, respectively, making it more reactive toward the diene or the dipole...
Click to read more »Montréalone
Jumat, 2025-05-23 04:05:48Montréalones participate in 1,3-dipolar cycloaddition reactions with dipolarophiles such as imines, alkenes, and alkynes to respectively afford imidazoles...
Click to read more »David Hodgson (chemist)
Kamis, 2022-08-25 23:54:41cycloadditions 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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