Module 8 : Molecular Rearrangements

Lecture 17 : Types of Rearrnagements

8.2.1.3 Arndt-Eistert Homologation Reaction

The reaction of acid chloride with diazomethane gives a diazoketone which is in the presence of silver oxide under heating proceeds the Wolff rearrangement to yield a ketene that is directly converted into an acid in the presence of water.

Mechanism

Examples: