C6H5CH=CHCOOH+Br2+CS2(溶剂)------>C6H5CH(Br)CH(Br)COOH+CS2(溶剂)
C6H5CH(Br)CH(Br)COOH+Na2CO3------->C6H5CH=CH(Br)+NaHCO3+NaBr+CO2
C6H5CH=CHCOOH+Br2+CS2(溶剂)------>C6H5CH(Br)CH(Br)COOH+CS2(溶剂)
C6H5CH(Br)CH(Br)COOH+Na2CO3------->C6H5CH=CH(Br)+NaHCO3+NaBr+CO2