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4. (10) Synthesize each of the following compounds from a B-keto ester, also presenting how the B-keto ester itself can be prepared. a.) racemic

4. (10) Synthesize each of the following compounds from a B-keto ester, also presenting how the B-keto ester itself can be prepared. a.) racemic 1,3-diphenyl-2-butanone b.) racemic 2-methyl-1-phenyl-3-pentanone

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