存著再看年 12:20 选择类别 Enols and Enolates – Reactivity, Halogenation, and Alkylation: Crash Course Organic Chemistry #43
存著再看年 11:29 选择类别 More EAS – Electron Donating and Withdrawing Groups: Crash Course Organic Chemistry #38
存著再看年 13:31 选择类别 Aromaticity, Hückel’s Rule, and Chemical Equivalence in NMR: Crash Course Organic Chemistry #36