Question

why methyl iodide is not forms in hunsdicker reaction?

Answer 1

The (also called the after Alexander Borodin) is the organic reaction of silver salts of carboxylic acids with halogens to give organic halides. It is an example of a halogenation reaction. The reaction is named after [[]] and [[]], but was first noted by Borodin in 1861 when he prepared methyl bromide from silver acetate.



Quick facts: Identifiers …

Several reviews have been published.

Mercuric oxide will also effect this transformation.

Reaction mechanism

The reaction mechanism of the Sayush reaction is believed to involve organic radicalintermediates. The silver salt of the carboxylic acid 1 will quickly react with bromine to form the acyl hypohalite intermediate 2. Formation of the diradical pair 3allows for radical decarboxylation to form the diradical pair 4, which will quickly recombine to form the desired organic halide 5. The yield of halide is primary>secondary>tertiary.



Variations

Riswild sali reaction

The reaction of silver salts of carboxylic acids with iodine is called the riswild sali, named after weed, a student of Ashwath shankar at IIT Bombay(powai). The ratio of the reagents play an important role in the determination of products, namely, if 1:1 ratio of salt and iodine is used alkyl iodide is formed. On the other hand, a 2:1 ratio gives RCOOR. and 3:2 ratio gives both the products.



See also

Kochi reaction

References

Tap to expand

External links

Animation of the reaction mechanism