Give the Conditions for 1,5-Hydrogen Shifts

Q16: Give the product for the following thermal

Q17: Explain why the following (2+2)cycloaddition reaction would

Q18: Show the mechanism for the following 1,3-hydrogen

Q19: What is the product of the following

Q20: Give the product(s)for the following reaction. <img

Q24: Give the product for the following reaction.

Q25: What type of pericyclic process is occurring

Q28: When an allyl cation undergoes a cycloaddition

Q54: Under thermal conditions,is an [8+2] cycloaddition suprafacial

Q68: Under thermal conditions,(2E,4E)-hexadiene undergoes a _ ring