The ring-forming reaction below (initiated by heat) is
Chapter 11, Problem 11.59(choose chapter or problem)
The ring-forming reaction below (initiated by heat) is believed to undergo a stepwise radical mechanism via the intermediate diradical shown (J. Am. Chem. Soc. 2009, 131, 653–661). Propose a reasonable mechanism to account for the formation of the product from the intermediate diradical.
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