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氰乙酸制备丙二酸 丙二酸的制备方法
氰乙酸酯的制备 乙醇+CrO3+H2SO4-CH3CHOCH3CHO+KMnO4-CH3COOHCH3COOH+P+Br2-BrCH2COOHBrCH2COOH+ROH+H2SO4(浓)-BrCH2COORBrCH2COOR+NaCN-NC...
氰乙酸酯的制备 乙醇+CrO3+H2SO4-CH3CHOCH3CHO+KMnO4-CH3COOHCH3COOH+P+Br2-BrCH2COOHBrCH2COOH+ROH+H2SO4(浓)-BrCH2COORBrCH2COOR+NaCN-NC...