Abstract
An ecofriendly and economical method of Knoevenagel condensation of aromatic aldehydes with malononitrile catalyzed by lemon juice, a natural catalyst, in the absence of any solvent is described.
GRAPHICAL ABSTRACT
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ACKNOWLEDGMENT
S. S. P. and S. D. J. thank the University Grants Commission, New Delhi, for sanctioning Minor Research Project (MRP).