Q14 · CSIR-NET Chemistry, December 2015
Paper: CSIR-NET December 2015 · Subject: Organic Chemistry · Chapter: Reagents, Reaction Mechanisms & Named Reactions · Topic: Reagents, Reaction Mechanisms & Named Reactions – General · Marks: 2 · Difficulty: Medium
The major structures of A and B in the following reaction sequence are 
(a)
(b)
(c)
(d)
Answer
Answer: A ✓ checked by 4AB · confidence medium
Explanation
One equivalent of B₂H₆ converts 1,5-cyclooctadiene into 9-BBN (A). 9-BBN hydroborates the vinyl group anti-Markovnikov, and Suzuki coupling with the (Z)-iodoacrylate retains the Z geometry (a).
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