Click the "draw structure" button to launch the drawing utility, and be sure to answer all parts. devise a synthesis of the epoxide b from alcohol a. a arrow b a b (hint: determine what alkene is needed to make the epoxide, and begin the synthesis with a reaction that yields the needed alkene from an elimination reaction.) a [1] arrow draw structure [2] darrow b [3] larrow draw structure [1]: h2so4 and nah h2so4 pocl3 and pyridine pocl3 pocl3 and h2so4 pyridine [2]: pyridine and pocl3 br2 and h2o bh3 pyridine nah h2o [3]: h2so4 and nah pocl3 pyridine pocl3 and pyridine pocl3 and h2so4 nah