rearrangement

  • 71Brook rearrangement — The Brook rearrangement in organic chemistry is a rearrangement reaction in which a organosilyl group switches position with a hydroxyl proton over a carbon to oxygen covalent bond under the influence of a base [cite journal | author = A. G.… …

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  • 72Ireland-Claisen rearrangement — The Ireland Claisen rearrangement is a chemical reaction of an allylic ester with strong base to give an γ,δ unsaturated carboxylic acid. [Ireland, R. E.; Mueller, R. H.; J. Am. Chem. Soc. 1972, 94 , 5897 5898. (DOI|10.1021/ja00771a062)] [Ireland …

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  • 73Wolff rearrangement — The Wolff rearrangement is a rearrangement reaction converting a α diazo ketone into a ketene.Ref|Meier1975Ref|Gill1991Ref|Kirmse2002 This reaction was first reported by Ludwig Wolff in 1912.Ref|Wolff1912The rearrangement is catalyzed by… …

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  • 74Stevens rearrangement — The Stevens rearrangement in organic chemistry is an organic reaction converting quaternary ammonium salts and sulfonium salts to the corresponding amines or sulfides in presence of a strong base in a 1,2 rearrangement.The reactants can be… …

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  • 75Hofmann-Martius rearrangement — The Hofmann Martius rearrangement in organic chemistry is a rearrangement reaction converting an N alkylated aniline to the corresponding ortho and / or para aryl alkylated aniline. The reaction requires heat and the catalyst is an acid like… …

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  • 76McLafferty rearrangement — The McLafferty rearrangement is a reaction observed in mass spectrometry. It is sometimes found that a molecule containing a keto group undergoes β cleavage, with the gain of the γ hydrogen atom. This rearrangement may take place by a radical or… …

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  • 771,2-Wittig rearrangement — A 1,2 Wittig rearrangement is a categorization of chemical reactions in Organic chemistry, and consists of a 1,2 rearrangement of an ether with an alkyllithium compound [Georg Wittig, L. Löhmann, Ann. 550, 260 (1942)] [G. Wittig, Experientia 14,… …

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  • 78Criegee rearrangement — The Criegee rearrangement is a rearrangement reaction named after Rudolf Criegee. In this organic reaction a tertiary alcohol is cleaved in an organic oxidation by a peroxyacid to a ketone. The acid used is often p nitroperoxybenzoic acid because …

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  • 79Bamberger rearrangement — The Bamberger rearrangement is the chemical reaction of N phenylhydroxylamines with strong aqueous acid, which will rearrange to give 4 aminophenols.cite journal | last = Bamberger | first = E. | journal = Chem. Ber. | date = 1894 | volume = 27 | …

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  • 80Jacobsen rearrangement — The Jacobsen rearrangement is a chemical reaction, commonly described as the migration of an alkyl group in a sulfonic acid derived from a polyalkyl or polyhalobenzene:The exact reaction mechanism is not completely clear, but evidence indicates… …

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