Ethyl 3- oxo-4-phenylbutanoate, CAS No 718-08-1

Ethyl 3-oxo-4-phenylbutanoate, also known as ethyl 4-phenylacetoacetate, is an organic compound with the molecular formula C₁₂H₁₄O₃. It's a β-keto ester, meaning it has a ketone and an ester functional group, along with a phenyl group. This structure makes it a versatile intermediate in organic synthesis, particularly in the creation of pharmaceuticals and other complex molecules. 

Ethyl 3-oxo-4-phenylbutanoate (CAS: 718-08-1) is a versatile organic compound, a β-keto ester, that serves as a key intermediate in the synthesis of complex heterocyclic compounds like pyrazolone and pyrimidinone derivatives. Its structure features a phenyl group, a ketone, and an ester, providing multiple sites for chemical modification, particularly a reactive "active methylene" group at the C2 position. This dual reactivity makes it a valuable precursor in pharmaceuticals, where it's used to create antiprion compounds and