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
Correct Answer:
Verified
Correct Answer:
Verified
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