organic chemistry
- synthesis of naphthalene with reactions
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Naphthalene is an organic compound with formula C10H8. It is the simplest polycyclic aromatic hydrocarbon and a white crystalline solid with a characteristic odour that is detectable at concentrations as low as 0.08 ppm by mass.
As an aromatic hydrocarbon, naphthalene's structure consists of a fused pair of benzene rings. It is best known as the main ingredient of traditional mothballs.
It can be synthesized by Haworth synthesis, the steps are as follows:
1. The Friedel craft acylation reaction of benzene with succinic anhydride gives 3 benzoylpropionic acid.
2. Next is the Clemmenson’s reaction with 3-benzoylpropionic acid which gives 4-phenylebutanoic acid.
3. On heating this product in the presence of conc. sulfuric acid results in the formation of ring structure of α-tetralene by the ellimination of water molecule.
4. The Clemmenson reaction of α-tetralene gives tetrahydronaphthalene.
5. Dehydrogenation of tetrahydronaphthalene in the presence of selenium yields
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As an aromatic hydrocarbon, naphthalene's structure consists of a fused pair of benzene rings. It is best known as the main ingredient of traditional mothballs.
It can be synthesized by Haworth synthesis, the steps are as follows:
1. The Friedel craft acylation reaction of benzene with succinic anhydride gives 3 benzoylpropionic acid.
2. Next is the Clemmenson’s reaction with 3-benzoylpropionic acid which gives 4-phenylebutanoic acid.
3. On heating this product in the presence of conc. sulfuric acid results in the formation of ring structure of α-tetralene by the ellimination of water molecule.
4. The Clemmenson reaction of α-tetralene gives tetrahydronaphthalene.
5. Dehydrogenation of tetrahydronaphthalene in the presence of selenium yields
HOPE IT HELPED U♡♡♡
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