Grignard ReactionS (RMgX) BM1+4→HC-c++r a Nucleophile an Electrophile BMlg-CH3 +0=0 -Hc-c-0+ MgBr a Nucleophile an Electrophile R-X+ Mg R: MgX8 Grignard Reactions (R : − +MgX) BrMg + CH C O H 3 C C O 3 + MgBr a Nucleophile an Electrophile BrMg CH 3 + H 3 C I H 3 C CH 3 + MgBr + I a Nucleophile an Electrophile R-X + Mg: R: MgX