10. Addition Reactions
Alkyne Halogenation
6:54 minutes
Problem 10.55
Textbook Question
Textbook Question(•••) IN THE CHEMICAL LITERATURE The synthesis of five-membered lactones (cyclic esters) has been accomplished using the electrophilic addition of I―Cl to an alkyne. Suggest a mechanism for this cyclization reaction. (Structure modification of Yao, T.; Larock, R.C. J. Org. Chem. 2005, 70, 1432–1437.)
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