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1. remove O2 and protect the reaction with N2. 2. add some reducing agent (such SnCl2, NaBH4) into the mixture when in need. |

4Â¥2006-02-19 10:38:18
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2Â¥2006-02-17 21:26:09
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3Â¥2006-02-17 21:29:15
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5Â¥2006-02-19 14:03:11













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