1. The problem statement, all variables and given/known data Find the product: 2. Relevant concepts Thiols react with vinyl ethers according to anti-markovnikov's rule 3. The attempt at a solution After reading Jerry March's book, i came to know that it follows free radical mechanism and that is why it gives anti markovnikov's product. Just like the peroxide effect. But its given that the reaction takes place in catalyst free conditions. What is the free radical initiator here?