9.2A Theoretical explanation of markovnikov's rule 1. Electronic effects(电子效应 H3C→c=CH2+H-Br CH3CHCH2H (not BrCH2 CHCH3) Br Methyl push electron Markovnikov addition product9.2A Theoretical explanation of Markovnikov’s Rule C H CH2 + H-Br CH3CHCH2H Br Markovnikov addition product (not BrCH2CHCH3 H ) 3C  −  +  −  + H Methyl push electron 1. Electronic Effects (电子效应）