如何用苯、乙烯、丙烯合成3-甲基-1-苯基-2-丁烯？

CLC H2-ch2cl+2 NaOH-乙醇- HC trich+2 NaCl+2 H2O，

HC三联ch CH - Na110 +00或nan H2-HC HC三联CNa，h2c = chch3+HCl-ch3clch3，HC三联CNA+CH 3c lch 3-HC三联C-CH(CH3)2、

HC tric-ch(CH3)2+HCl-h2c = ccl(CH3)2，

H2C = CCl(CH3)2+NaOH-H2O-H2C = COH(CH3)2+NaCl，

H2C = COH(CH3)2+钠- H2C=CONa(CH3)2+H2，H2C = CONa(CH3)2+HCl-Na2O 2-CLC H2-CHONa(CH3)2，

CLC H2-CHONa(CH3)2+c 6 H5 MgCl-c 6 H5 ch 2 CHONa(CH3)2+MGC L2，

C6H5CH2CHONa(CH3)2+H2SO4浓度-

C6H5CH=CH(CH3)2+H2O