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lgwang

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[交流] 【求助】请教高手一个三硫酯合成问题

根据文献,制备S-1-dodecyl-S’-(α,α’-dimethyl-α’’-acetic acid) trithiocarbonate
先将十二硫醇,甲基三辛基氯化铵,丙酮在Ar气氛下加入,冷却到10度,再滴入50%氢氧化钠,搅拌20min。再加入CS2的丙酮溶液后,为什么溶液没有变红? 这个过程换用新的CS2呵氢氧化钠,结果仍然不变色。
请高手指点一下,不胜感激!

[ Last edited by lgwang on 2010-9-8 at 17:15 ]
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