催化剂加氢顺式加成产物。机理: RG=C-R+Ma-la++[R范R] radical anion RE-R]+NH3—MH2+x vinylradical Na t c H vinyl anion H more stable less stable College Chemistry of jilin Normal universityCollege Chemistry of Jilin Normal University 催化剂加氢顺式加成产物。机理：