ORGANIC CHEMISTRY Chapter 17 I)C6H5MgBr_C6H5 CH=CHCH-C6H5 (2)H2O 100%OH CkHCHECHCHO 1.2-Addition (I)C2HsMgBr C6HsCH=CHCH-C2H5 (2)H2O 100%OH 1. 2-Addition 1. 4-Addition I)C6Hs MgBr 88% 120 (2)H2O CkHsCH-CHCCH (1)C2HS MgBr 409 60 (2)H2O Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 17 C6H5CH CHCHO 1,2-Addition C6H5CH CHCH C6H5 OH C6H5CH CHCH C2H5 OH (1)C6H5MgBr (2) H2O (1)C2H5MgBr (2) H2O 100% 100% C6H5CH CHCCH3 O (1)C2H5MgBr (2) H2O (1)C6H5MgBr (2) H2O 88% 12% 40% 60% 1,2-Addition 1,4-Addition