Among the five major rearrangement reactions, why are only hexacyclic alkanes and pentacyclic alkanes mentioned?
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So, do cycloheptanes (seven-carbon cycloalkanes), octacarbons, nonacarbons, and other such cycloalkanes account for a small proportion in the feedstock used in reforming? And how do they react during the reforming process?
It’s obvious he’s never been to school.
Just like the male and female protagonists in movies or TV shows! It’s enough to know; it’s not something we study!
Indeed, cycloalkanes are mostly pentacyclic and hexacyclic compounds along with their derivatives; cycloalkanes with 7 or more carbon atoms seem to be rare in petroleum-based substances; perhaps the relevant information available is not extensive enough, as I have not encountered any such compounds yet.
What was said upstairs is correct. Among organic compounds, only six-membered and five-membered rings are stable; all others are unstable.