1催化氢化 H2G适量) R—C≡C-H R-CH=H2 H2-R-CHA-CH3 催化剂Pd或Ⅳi Pt R-C=C-H+H2(过量)P,R-CH2-CH3 ZProfessorwangkangchengEmaIl:w518@sohu.com
1.催化氢化
Lindlar催化剂和PZ催化剂催化氢化,主要生成顺式烯烃 N(06-CH323BNiB(Pz催化剂) 只还原炔不还原烯 C3HT-C-C-C3H7+H2 [Pd/Caco 1 C3H7 C3H7 H C2H5 C2H5 C2HS-C=C-C2H5+H2 P-Z 97% ZProfessorwangkangchengEmaIl:w518@sohu.com
Lindlar 催化剂和P-Z催化剂催化氢化，主要生成顺式烯烃
催化剂加氢顺式加成产物。机理: RG=C-R+Ma-la++[R范R] radical anion RE-R]+NH3—MH2+x vinylradical Na t c H vinyl anion more stable less stable ZProfessorwangkangchengEmaIl:w518@sohu.com
催化剂加氢顺式加成产物。机理：
用钠或锂在液氨中还原,生成反式烯烃。 C3H7C=C-C3班7L+M37 52% H7 Pd-Basc4 C6H5- CH=C-CH=CH-C=C-C6H5+H2 C6H5-CH=C-CH=CH-CH=CH--C6H5 喹啉 sHI 90% ZnprOfessorwangkangchengEmaIl:W518@Sohu.com
用钠或锂在液氨中还原，生成反式烯烃