反应条件
1: 1.) polyphosphoric acid / 1.) water, 90 degC, 30 min; 2.) 120 degC, 3 h
2: 65.6 percent / 10percent Engelhardt Pd/C / acetic acid
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参考文献
Hazai; Deak Gy.; Doda
Acta Chimica Academiae Scientiarum Hungaricae, 1981 , vol. 108, # 3 p. 255 - 263
