ABC26OR0408 · Reagents Reaction Mechanisms and Named Reactions
Subject: Organic Chemistry · Chapter: Reagents Reaction Mechanisms and Named Reactions · Topic: Reagents, Reaction Mechanisms & Named Reactions – General · Exam: CSIR-NET 2019 · Marks: 2 · Difficulty: Medium
The major products A and B in the following reaction sequence are: 
Answer
SELF-PRACTICE — the source book printed no answer.
Nothing is invented here, so this question has no answer on record.
Explanation
The mechanism of the reaction is given below: Gilman reagent attacks from opposite side of ring to form (A), which gives again cyclopropantion on alkene ring with stereochemistry same as OH group to form (B).
Explanation as extracted from the printed page; notation may be imperfect.