氯代芳烃催化氢转移脱氯的研究
STUDY ON CATALYTIC TRANSFER HYDROGENOLYSIS DECHLORINATION OF ARYL CHLORIDES
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摘要: 本文以甲酸钠为氢源,对聚乙烯吡咯烷酮锚定的PdCl2(PVP-PdCl2)催化氯代芳烃脱氯进行了研究,考察了反应条件对反应的影响,研究了脱氯的选择性。结果表明:该方法具有卓越的脱氯选择性,催化剂用量少,反应条件温和,操作简便,本文并对其脱氯反应机理进行了初步探讨。Abstract: This paper deals with the studies on sodium formate catalytic transfer hydrogeno-lysis, in the presence of palladium anchored on poly (N-vinyl-2-pyrrolidone ) (PVP-PdCl2), for the dechlorination of aryl chlorides. The effects of reaction parameters and the selectivity to dechlorination have been investigated using the new catalyst system. Results indicate that this system showed high catalytic activity and selectivity for the dechlorination of aryl halides with a small quantity of the catalyst under relatively mild conditions, The operation is very convenient. A preliminary discussion on the catalytic reaction mechanism has also been made.
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Key words:
- aryl chlorides /
- catalytic hydrogen transfer /
- dechlorination /
- palladium dichloride
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