Question

Trans-4-methoxycinnamic avid was converted to beta-bromo-4-styrene. Why is the intermediate of the E isomer more stable than that of the Z isomer

Answer 1

The E-isomer is more stable than the Z- isomer This is because of the steric crowing.. the Z- isomer having both the bulkier group on the same side of the double bond therefore it creates more stric energy for that Z- isomer is less stable ans E- isomer is more stable because of the less steric energy.

Greater the steric energy lowed the stability. Lesser the steric energy higher the stabilty