合成路线： 0 Mg PBr3_ (CH3)2CHBr H2O H;C-CH-CH2CH2OH CH2Cl 无水醚 CH3 HC-CH-CH.CH,Br Mg_CHCOCH O CCH-CH2-CH2-C-CH OH CH3 无水醚 CH3 CH3 H3CCH-CH2-CH=C-CH3 CH3 CH3 合成路线： CH2 CH C CH3 H3CCH CH3 CH3 C CH3 H3CCH CH2 CH2 CH3 OH CH3 H3C CH CH2CH2Br CH3 H3C CH CH2CH2OH CH3 (CH3)2CHBr O Mg H2O PBr3 CH2Cl2 Mg CH3COCH3 H2O H + 无水醚 无水醚