A Total Synthesis of Ingenol Utilized a Dibromocyclopropanation Via a Carbene

question 112

Multiple Choice

A total synthesis of ingenol utilized a dibromocyclopropanation via a carbene intermediate (J. Am. Chem. Soc. 2002, 124, 9726) . What key type of reagent is missing from the reaction conditions?

• A) Bronsted Acid
• B) Bronsted Base
• C) radical initiator
• D) Lewis Acid catalyst

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