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Title: Solvent-free synthesis of jasminaldehyde using double metal cyanide based solid acid catalysts
Authors: Patil, Mallikarjun V
Sharma, Sumeet K
Jasra, Raksh V
Keywords: Catalysts;Double metal cyanide;Jasminaldehyde;Heptanal;Benzaldehyde;Solid acid catalyst;Aldol condensation
Issue Date: Dec-2013
Publisher: NISCAIR-CSIR, India
Abstract: The catalytic activity of Fe-Zn double metal cyanide catalysts is studied for the solvent-free synthesis of jasminaldehyde by liquid phase condensation of benzaldehyde and 1-heptanal at 433 K. The highest conversion of 1-heptanal (93%) with 77% selectivity to jasminaldehyde is achieved under the optimum reaction conditions. The presence of co-ordinatively unsaturated Zn2+ in the structural framework of Fe-Zn double metal cyanide assists the condensation reaction. The effects of complexing and co-complexing agent, amount of catalyst, benzaldehyde to 1-heptanal molar ratio and temperature on the selectivity of jasminaldehyde is reported.
Page(s): 1564-1569
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.52A(12) [December 2013]

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