/* MARKETING SCRIPT */?>
silver salts of carboxylic Acid react with halogen to give RX .
Reaction Mechanism of Hunsdieker reaction
The mechanism is uncertain but probably in the first step acyl hypohalite is formed which then decomposes into free radicals.
RCOOAg + X2 RCOOX + AgX
RCOOX RCOO∙ + X∙
RCOO∙ R∙ + CO2
R∙ + X2 RX + X∙
R∙ + RCOOX RX + RCOO∙ etc.
In Hunsdieker reaction, Br2 in CCl4 gives better yield than Cl2 in CCl4.
The yield and ease of formation of R -X is
1°RX > 2°RX > 3°RX
If I2 is used in Hunsdieker reaction in CCl4, then a ester is formed. This is known as Birnbaum−Simonini Reaction.
But if acids are used with I2 and red mercuric oxide, alkyl iodides are obtained.
2RCO2H + 2I2 + HgO 2RI + 2CO2 + HgI2 + H2O
List of Name Reaction of Organic Chemistry consist of detail Reaction Mechanism of all name reactions of Organic Chemistry.