One-pot Synthesis of Benzil Derivatives from Aromatic Aldehydes
Publish place: Organic Chemistry Journal، Vol: 3، Issue: 1
Publish Year: 1394
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_OCJ-3-1_002
تاریخ نمایه سازی: 19 شهریور 1396
Abstract:
One-pot benzoin condensation and air oxidation of some aromatic aldehydes were investigated. All the reactions were carried out by catalytic effect of cyanide ion in alcoholic solvents under atmospheric O2. Under these conditions, 4-methoxybenzaldehyde, 4-bromobenzaldehyde, 3-nitrobenzaldehyde and 2-furylcarbaldehyde transformed to their relative benzil derivatives, directly. But the procedure was not successful with 4-methylbenzaldehyde, 4-chlorobenzaldehyde, 2-pyridinecarbaldehyde and 4-pyridinecarbaldehyde. The later compounds were converted to their relative benzoin or pyridoin derivatives. The so-formed benzoins were then oxidized to their corresponding benzil derivatives using a mixture of ammonium nitrate and cupric acetate in 80% aqueous solution of acetic acid. However, pyridoines converted to blue complexes in the same reaction conditions
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Authors
Mohsen Mousavi
Department of Chemistry, Saveh branch, Islamic Azad University, Saveh, Iran
Hasan Seyfi
Department of Chemistry, Saveh branch, Islamic Azad University, Saveh, Iran