Q60 · CSIR-NET Chemistry, June 2019
Paper: CSIR-NET June 2019 · Subject: Organic Chemistry · Chapter: Pericyclic Reactions · Topic: Pericyclic Reactions – General · Marks: 2 · Difficulty: Medium
The major product formed in the following reaction is: 
$\xrightarrow{\Delta}$
$\xrightarrow{\Delta}$(a)
(b)
(c)
(d)
Answer
Answer: B ✓ checked by 4AB · confidence medium
Explanation
The 8π (azonine) system closes thermally by a disrotatory 6π electrocyclisation, giving cis-fused N-methyl-dihydroindole-type bicyclic product (b) (source key b).
Study loop for Pericyclic Reactions