Be sure to answer all parts. Identify A, B, and C, intermediates in the synthesis of the five-membered ring called an a-methylene-y -butyrolactone. This heterocyclic ring system is present in some antitumor agents. Do not draw lone pairs in your answers. LDA THF A CH₂I B Br₂ CH, CO,H с Li₂CO3 LiBr DMF & a-methylene- y-butyrolactone

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Designing a Synthesis

Organic synthesis is a branch of chemical synthesis that involves the planned construction of organic compounds/molecules from smaller units that possess functional groups. Friedrich Wöhler was the first scientist who designed the synthesis of an organic compound, urea from inorganic starting materials silver cyanate with ammonium chloride via a simple, one-step synthesis.