2.碳碳π键的反应 (1) 还原 H2/Ni,or Pd,or Pt RCH,CH,R' H2/Pd-CaCO3 (>90%) or Pd-BaSOa orNiB 硼氢化 R-C=C-R' RCOOH -CRm C (90%) Na,NH3 (82%) LiAIH(THF) HC-CH B. R (1) 还原 R-CC-R’ H2 /Ni, or Pd, or Pt RCH2CH2R’ H2 / Pd-CaCO3 or Pd-BaSO4 orNiB R' R H H C C R' H R H C C 硼氢化 RCOOH ~0oC R' H R H C C Na, NH3 R' R H H C C LiAlH4 (THF) (>90%) (90%) (82%) 2. 碳碳π键的反应