Provide a stepwise curved arrow mechanism for the following reaction. 
Definitions:
Low-Cost Experiments
Simple and economical tests or trials conducted to explore new ideas, evaluate potential outcomes, or gather data before making larger investments.
Urban Food Deserts
Areas in urban settings lacking access to affordable and nutritious food, often characterized by high concentrations of fast-food restaurants and convenience stores.
Hypothesis
A proposed explanation for a phenomenon, made as a starting point for further investigation.
Pesticide-Free
Refers to products, especially agricultural goods, that are grown or produced without the use of chemical pesticides.
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