Research Article
A Solvent-Free Protocol for the Green Synthesis of 5-Arylidene-2,4-thiazolidinediones Using Ethylenediamine Diacetate as Catalyst
Table 2
Recycling of the EDDA for the synthesis of 5-benzylidene-2,4-thiazolidinedionea.
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aReaction condition: benzaldehyde (20 mmol), 2,4-thiazolidinedione (20 mmol), EDDA (1 mmol) at 80°C under solvent-free conditions. bIsolated yield. | |||||||||||||||||||||||||||