The Claisen rearrangement is an organic reaction where an allyl vinyl ether is converted into a γ,δ-unsaturated carbonyl compound with the input of heat or a Lewis acid. The Williamson ether synthesis of allyl phenyl ether and its subsequent Claisen rearrangement to 2-allylphenol introduces two important reactions of ethers to the undergraduate laboratory. The Claisen rearrangement (not to be confused with the Claisen condensation) is a powerful carbon–carbon bond-forming chemical reaction discovered by Rainer Ludwig Claisen in 1912. Claisen rearrangement of allyl phenyl ether. The Williamson ether synthesis of allyl phenyl ether and its subsequent Claisen rearrangement to 2-allylphenol introduces two important reactions of ethers to the undergraduate laboratory. Reaction 4 is the classic rearrangement of an allyl phenyl ether to an ortho-allyl phenol. The Claisen rearrangement of allyl phenyl ether to 6-(prop-2-en-1-yl) cyclohexa-2,4-dien-1-one has been studied by means of Bonding Evolution Theory (BET), which combines the topological analysis of the electron localization function (ELF) and catastrophe theory. The methyl substituent on the allyl moiety serves to demonstrate the bonding shift at that site. The heating of an allyl vinyl ether will initiate a [3,3]-sigmatropic rearrangement to give a … The reaction can be presented as consisting o The present work is aimed to develop a me thod for allylation of phenol on Armenian natural zeolites as catalysts. The mechanism of Claisen rearrangement of allyl phenyl ether from the perspective of topological analysis of the ELF. Ether chemistry is essential to organic synthesis. This reaction belongs to a class of reactions termed "sigmatropic rearrangements" and it is a concerted process where bonds are forming and breaking at the same time. Two examples of the Claisen Rearrangement may be seen. Purification is accomplished using acid–base extraction, which reinforces understanding of the pKa differences between aliphatic and aromatic alcohols. Ether chemistry is essential to organic synthesis. New Journal of Chemistry 2016 , 40 (10) , 8717-8726.

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