①氢化金属还原 见 ppt chap12-2 1. LiAIHgor NaBH4 2.H2O OH R一C一R"(H) R一CH一R(H) 1. BHs/THE 2.H。O New B2H还原机理: OH H2O H c-H H3 BO① 氢化金属还原 见ppt chap12-2 B2H6还原机理: 1. LiAlH4 R CH OH R C R'(H) O R'(H) or NaBH4 2. H2O 1. B2H6 / THF 2. H2O C O C H O H B H2O C OH H H3BO3 B New