Need help from an expert?
The world’s top online tutoring provider trusted by students, parents, and schools globally.
An example of anti-Markovnikov addition is the reaction between HBr and propene in the presence of peroxides.
Anti-Markovnikov and Markovnikov additions are two types of electrophilic addition reactions in organic chemistry. In a Markovnikov addition, the electrophile (usually a hydrogen halide) adds to the carbon atom that has the most hydrogen atoms attached to it, resulting in the formation of a more stable carbocation intermediate. The halide ion then adds to the carbocation to form the final product.
In contrast, in an anti-Markovnikov addition, the electrophile adds to the carbon atom that has the least hydrogen atoms attached to it. This results in the formation of a less stable carbocation intermediate, which is then stabilized by the presence of radical initiators such as peroxides. The radical initiators generate free radicals that abstract a hydrogen atom from the alkene, leading to the formation of a radical intermediate. The halide ion then adds to the radical intermediate to form the final product.
An example of anti-Markovnikov addition is the reaction between HBr and propene in the presence of peroxides. The reaction proceeds via the formation of a radical intermediate, which is then attacked by the halide ion to form 2-bromopropane. This reaction is important in the synthesis of alcohols, as it allows for the conversion of alkenes to alcohols in a single step.
Study and Practice for Free
Trusted by 100,000+ Students Worldwide
Achieve Top Grades in your Exams with our Free Resources.
Practice Questions, Study Notes, and Past Exam Papers for all Subjects!
The world’s top online tutoring provider trusted by students, parents, and schools globally.