Problem: List the following six mechanistic terms (nucleophilic addition, deprotonation, protonation, proton transfer, dehydration, nucleophilic addition) in order of the correct mechanistic sequence in the six step conversion of cyclopentanone to 1,4-dioxaspiro[4.4]nonane as shown below. 

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List the following six mechanistic terms (nucleophilic addition, deprotonation, protonation, proton transfer, dehydration, nucleophilic addition) in order of the correct mechanistic sequence in the six step conversion of cyclopentanone to 1,4-dioxaspiro[4.4]nonane as shown below. 

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