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Title: An expeditious synthesis of syringaldehyde from para-cresol
Authors: Tripathi, A K
Sama, J K
Taneja, S C
Keywords: p-Cresol;bromination;methoxilation;cupper chloride-diethylamine complex;catalytic oxidation;syringaldehyde
Issue Date: Mar-2010
Publisher: CSIR
Abstract: Syringaldehyde is prepared from p-cresol via a three step reaction sequence in overall yield of 63-67%. The synthesis involves selective bromination followed by high pressure and temperature methoxilation and catalytical oxidation. The use of copper chloride in different oxidation state as a catalyst in two key steps i.e. methoxilation in aromatic ring (by cuprous chloride) and oxidation of aromatic methyl to aldehyde (by cupric chloride) underscore fidelity of the process.
Page(s): 379-381
Appears in Collections:IJC-B Vol.49B(03) [March 2010]

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