1-In a 100 ml beaker, place ethyl acetoacetate (4mL) and cool in ice bath. 2-To the...

Transcribed Image Text:

1-In a 100 ml beaker, place ethyl acetoacetate (4mL) and cool in ice bath. 2-To the ethyl acetoacetate hydrate (2 mL) was added dropwisely with stirring 3- Leave in the ice bath for an additional 10 minutes where a white ppt is formed. 4- Filter the product on suction and wash it thoroughly with petroleum ether (5 ml) to remove unreacted ethyl acetoacetate. procedure of: Synthesis of Pseudothiohydantoin Synthesis of 3,5- Dimethylpyrazole .b Synthesis of 3-methyl-2- pyrazolin-5-one 1-In a 100 ml beaker, place ethyl acetoacetate (4mL) and cool in ice bath. 2-To the ethyl acetoacetate hydrate (2 mL) was added dropwisely with stirring 3- Leave in the ice bath for an additional 10 minutes where a white ppt is formed. 4- Filter the product on suction and wash it thoroughly with petroleum ether (5 ml) to remove unreacted ethyl acetoacetate. procedure of: Synthesis of Pseudothiohydantoin Synthesis of 3,5- Dimethylpyrazole .b Synthesis of 3-methyl-2- pyrazolin-5-one