**The question is :** [![enter image description here][1]][1] Now, this is what I have done : [![enter image description here][2]][2] [1]: https://i.sstatic.net/CxNJF.jpg [2]: https://i.sstatic.net/SJpw0.jpg So I dont know how to proceed to the final product.In some book they tell we need to break the cyclopropane to get the desirable answer but how ? Please help.