3C OCH2C=CH2 H3 CH2C=CH2 H3CO OCH3 H2C=HCO CH2CHO 4、写出下列反应的产物 CH,ONa (CH3)CH一cHCH3 (CH3hC CHeCH OH OCH3 CH3 OH -OH H3C CH2OH CH2 +H,O-H, (H3C)3C C(H3C)3 OH (4 CH2 +H,OOH (H3C)3C CH2OH (1)(CH3 )2Cu Li C2Hs CHOHC2H5 ChICHH3C OCH2 (2) HO OH H2C (3) H3CO OCH2C=CH2 CH3 H H3CO CH2C=CH2 OCH3 OH CH3 (4) H2C=HCO CH3 CH3 CH2CHO 4、 写出下列反应的产物。 (1) (CH3 )2C CH2CH3 O + CH3ONa (CH3)CH OH CHCH3 OCH3 (2) O H3C + OH - CH3 OH OH (3) (H3C)3C O CH2 +H2O H + C(H3C)3 CH2OH OH (4) (H3C)3C O CH2 +H2O OH - C(H3C)3 OH CH2OH (5) C2H5CH O (1) (CH3)2Cu + Li - H + C2H5CHOHC2H5 2