20.2B Acylation of other carbanions(其它负碳离子酰基化) a NaOH,CH 3 Nat 1)H3CH2Co OCH2CH3 2) OCH2 CH3 (67%)20.2B Acylation of other carbanions(其它负碳离子酰基化） O NaOCH2CH3 O - Na + O O O OCH2CH3 (67%) O O 1) H3CH2CO OCH2CH3 2) H+ 