What is Saytzeff Rule Illustrate with suitable Example

Answer: According to Saytzeff’s rule, “the favoured product in dehydrohalogenation reactions is the alkene with the greatest amount of alkyl groups connected to the doubly bound carbon atoms.”

Consider the following scenario: When 2-bromobutane is dehydrohalogenated, it produces two products: 1-butene and 2-butene. Out of them, 2-butene is the most commonly used product (80%), as it is more easily replaceable and more stable.