Reimer tiemann reaction: The Reimer–Tiemann reaction owes its

The Reimer–Tiemann reaction owes its name to two young German chemists, Karl Reimer and Ferdinand Tiemann . In 1876 they isolated and identified hydroxyaldehydes as the principal reaction products of phenol and chloroform in alkaline medium. The scope of this reaction was enlarged in 1884 by von Auwers, who discovered the chlorine-containing cyclohexadienones as by-products in the formylation of alkylphenols. The ring-expansion products, namely, chloropyridines, were first noted by ... Reimer Tiemann Reaction Mechanism The Reimer-Tiemann reaction is an organic transformation that converts phenols into ortho-hydroxy benzaldehydes using chloroform, a base, and subsequent acid treatment. It is named after Karl Reimer and Ferdinand Tiemann , the chemists who developed the method. 1.0 The Reimer-Tiemann reaction The Reimer-Tiemann reaction is a well-known chemical process used for the ortho-formylation of phenols. The simplest example is the conversion of phenol to ... Reimer Tiemann Reaction Mechanism Reimer Tiemann reaction is an aromatic substitution reaction .The Reimer Tiemann reaction uses chloroform, a base, and an acid workup to transform phenol into ortho hydroxy benzaldehyde. Learn about the Reimer - Tiemann reaction , a type of substitution reaction that forms ortho or para-formylated products from phenols or other electron-rich aromatic compounds. Find out the mechanism, conditions, abnormal cases, applications, and limitations of this reaction .