CrO3 H,O (2) CH3,CH3 H2SO4 H2so -OH NaOH (4) (5)(CH3)3CONa BrCH2CH3 (6)(CH33 CBr NaOCH2CH3- (1)CH3Mgl HB (2)H3O (8)H3c○) OCH2CH (9)S(CH2CH2CD、H2O2 200℃ (10) Hac 答案 (2) CH3 C=CCH2CH (3 OCH CH3 (5)(CH3)3 COCH2CH3 (6)(CH3)2C=CH2 (8)H3C OH CH3 CH2B CIH2 CH2C (10) CIH2 CH2C H 5.如何实现下列转变?OH CrO3 H2O H2SO4 CH3CHCHCH2CH3 CH3 OH H2SO4 △ OH CH3 NaOH (CH3)2SO4 OH CH3 Br2 H2O (CH3)3CONa + BrCH2CH3 (CH3)3CBr + NaOCH2CH3 O (1) CH3MgI (2) H3O H3C OCH2 200℃ H3C OCH2CH3 HBr △ S(CH2CH2Cl)2 H2O2 (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) 答案： O CH3C=CCH2CH3 CH3 OCH3 CH3 OH CH3 (CH3)3COCH2CH3 (CH3)2C=CH2 H3C OH H3C OH + CH3CH2Br (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) Br Br Br OH S O ClH2CH2C ClH2CH2C 5. 如何实现下列转变？