According to the Woodward-Hoffman rules, performing this procedure on a conjugated system with four n plus two pi electrons will cause a disrotatory electrocyclization.
According to the Woodward-Hoffman rules, performing this procedure on a conjugated system with four n plus two pi electrons will cause a disrotatory electrocyclization. In the lab, this action is commonly regulated using a variac, and performing the (*) opposite of this process causes "crashing out" during recrystallization. Materials undergoing this lab process are often submerged in sand in a namesake "mantle." Another device used to perform this procedure has open holes at the bottom to control air intake and must be connected to a gas line to operate. For ten points, name this process, commonly carried out by students using a Bunsen burner.
According to the Woodward-Hoffman rules, performing this procedure on a conjugated system with four n plus two pi electrons will cause a disrotatory electrocyclization.
heating (accept anything about making something hotter or increasing its temperature; anti-prompt [ask for less specific] on “boiling” and equivalents; anti-prompt on “igniting” and equivalents)