Aza-Cope Rearrangement : Mechanism| Examples | Application
Aza-Cope Rearrangement Mechanism, Examples and Applications
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Baker-Venkataraman Rearrangement
Baker-Venkataraman Rearrangement is the base-promoted (KOH) rearrangement of aromatic 2-acyloxy ketones to the corresponding aromatic 1,3-diketone (β-diketones)
Prins-Pinacol Rearrangement :
The formation of oxacyclic and carbocyclic ring systems by terminating Prins cyclizations with the pinacol rearrangement in a tandem fashion is known as the Prins-pinacol rearrangement.
Pummerer Rearrangement: Mechanism, Applications Examples
Formation of α-substituted sulfides from the corresponding sulfoxides (must have at least one hydrogen atom at their α-position) is referred to as the Pummerer rearrangement.
The Stevens Rearrangement:
Stevens rearrangement is a base-promoted [1,2]-migration rearrangement of quaternary ammonium salts or sulfonium salts to the corresponding tertiary amines or sulfides. Stevens rearrangement involves the [1,2]-migration of one of the groups on the nitrogen or sulfur atom.
Aza-[2,3]-Wittig Rearrangement: Mechanism | Examples
The rearrangements reactions are important Name reaction in organic chemistry. Wittig rearrangement, first reported by G. Wittig and L. Löhmann in 1942, The Wittig rearrangement converts α-metalated ethers to metal alkoxides, yielding secondary or tertiary alcohols. Its nitrogen analog, the aza-Wittig rearrangement, transforms α-metalated tertiary amines into rearranged metal amides, producing homoallylic secondary amines. This … Read more