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硼氢阴离子交换树脂的制备及其对羰基、酰氯化合物的还原
Preparation of Borohydride Anion Exchange Resin (BER) and Reductions of Carbonyl Group and Acyl Chloride Compounds
【摘要】 <正> Gibson和Bailey首次应用Cl型季铵型强碱性阴离子交换树脂与NaBH4交换,制备了硼氢阴离子交换树脂还原剂(简称BER)。
【Abstract】 An improved method of preparing Borohydride anion Exchange Resin(BER)hasbeen accomplished by treatment of quaternary ammonium type anion exchange resins withalkaline soln.(unstired),followed by washing on a column with NaBH4 soln.The reduc-tion capacities of the resins were found to be 2.5~14.6 mmol/g,some of them were higherthan values reported before.In general,the capacities of all kinds of resins immersed in al-kali were higher than those unimmersed.Not only carbonyl compounds,but also some acylchlorides could be reduced to the corresponding alcohols and aldehydes in satisfactory yieldswith these BER.The resins could be recycled a few times without drastic decrease in redu-cing capacity.
【Key words】 polymer supported reducing agent; quaternary ammonium type anion exchange resin; borohydride exchange resin (BER);
- 【文献出处】 有机化学 ,Chinese Journal of Organic cHEMISTRY , 编辑部邮箱 ,1989年06期
- 【被引频次】11
- 【下载频次】107