The following transformation involves a series of four
Chapter 24, Problem 24.17(choose chapter or problem)
The following transformation involves a series of four consecutive Heck reactions and the formation of the four-ring steroid nucleus (Section 26.4) as a racemic mixture. Propose structural formulas for the palladium-containing intermediates involved in this reaction. EtOOC EtOOC I Heck reaction EtOOC EtOOC
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