(major)
Product (A) is
(major) Product (A) is
(major)
Product (A) is
- trans-2-butane
- cis-2-butene
- 1-butene
- Iso-butene
Solution
The given reaction involves the attack of triphenylphosphine (PPh₃) on the epoxide ring of the cyclopropane derivative. PPh₃ opens the ring by attacking the less hindered carbon, resulting in the formation of an intermediate. Bond rotation occurs to minimize steric hindrance, and the intermediate eliminates POPPh₃ to form a double bond.
The product is cis-2-butene, as it is the thermodynamically favored alkene due to steric and electronic factors.
Final Answer: (2) cis-2-butene
,Asked in: JEE-TOPICTESTS-CHEMISTRY