Subject: Organic Chemistry · Chapter: Photochemical Reactions · Topic: Photocycloaddition · Exam: NET DEC 2015 · Marks: 2 · Difficulty: Hard
$\mathrm{A}=$ and the reaction proceeds through nitrene intermediate.
$\mathrm{A}=$ and the reaction proceeds through Norrish type II path.
$\mathrm{A}=$ and the reaction proceeds through Norrish type I path.