الفهرس 
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Abstract
The study began with the treatment of model substrates benzoyl isothiocyanate (1) (1 mmol) and ethyl 2-bromoacetate (2) (1.5 mmol) with 1.00 equivalent of zinc dust (10 mm) heated at 60 oC in benzene (15 ml) for 1-3 hours under N2-atmosphere (Table 1). The reaction mixture was cooled to 0 degree Celsius in ice before being quenched with 10% HCl. The pure compound’s IR and 1H-NMR spectroscopy indicated that; ethyl 3-benzamido-3-thioxopropanoate (3) was generated in a 60 percent yield (Table 1, entry 1). When the amount of zinc was raised to 1.4 equivalents, the intended β-thioxoester product 3 generated 63% more (Table 1, entry 2).
Increasing the Zn-content with ethyl 2-boromoacetate (2) resulted in a significant increase in yield (Table 1, entries 3-7). A reaction time analysis using the modified reagent ratio assessed four distinct reaction durations of 1, 1.5, 2, and 2.5 hours (Table 1, entries 2 and 5–7), demonstrating that the process takes 2.5 hours to complete conversion. In a control experiment where zinc was not added to the reaction, the intended product was not formed (Table 1, entry 8).