Which hydrogen would be abstracted first when mono-brominating with Br2 and light?
Understand the Problem
The question is asking which specific hydrogen atom in the given organic structure will be abstracted first during the mono-bromination reaction with Br₂ and light. This involves understanding the reactivity of different hydrogen atoms in the presence of bromine under light conditions.
Answer
He
The hydrogen at the tertiary carbon (He) would be abstracted first when mono-brominating with Br2 and light.
Answer for screen readers
The hydrogen at the tertiary carbon (He) would be abstracted first when mono-brominating with Br2 and light.
More Information
In free radical bromination, bromine tends to abstract hydrogen atoms from the most substituted (often tertiary) carbon, resulting in a more stable radical intermediate.
Tips
A common mistake is assuming that bromine will abstract a hydrogen based on sterics or simply proximity. However, radical stability is the key determining factor.
Sources
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