REIMER TIEMANN REACTION PDF

The Reimer—Tiemann reaction is a chemical reaction used for the ortho - formylation of phenols; [1] [2] [3] [4] [5] with the simplest example being the conversion of phenol to salicylaldehyde. Chloroform 1 is deprotonated by a strong base normally hydroxide to form the chloroform carbanion 2 which will quickly alpha-eliminate to give dichlorocarbene 3 ; this is the principal reactive species. The hydroxide will also deprotonate the phenol 4 to give a negatively charged phenoxide 5. The negative charge is delocalised into the aromatic ring, making it far more nucleophilic.

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Fraser Stoddart. An efficient artificial molecular pump. Tetrahedron , 73 33 , Mariano, Hexin Xie, Wei Wang. Angewandte Chemie , 28 , Angewandte Chemie International Edition , 56 28 , Iodine-catalyzed C3-formylation of indoles using hexamethylenetetramine and air. Tetrahedron Letters , 58 30 , Journal of Pharmaceutical and Biomedical Analysis , , Chemistry - A European Journal , 23 17 , Mariano, Wei Wang. Angewandte Chemie , 6 , Angewandte Chemie International Edition , 56 6 , Hessam M.

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