20.What is the major product of the following reaction? 1)PCC 2)CH:CH2MgBr(I equiv.) 3)H,0⊕ D) 上0 Page 13 Page 13 20. What is the major product of the following reaction? OH 1) PCC 2) CH3CH2MgBr (1 equiv.) 3) H3O ? A) O B) OH C) D) O E) no net reaction occurs Ans: E