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全部话题 - 话题: ch3ona
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O*******f
发帖数: 926
1
来自主题: Chemistry版 - 甲醇钠的甲基H的酸性是多少?
model:
CH3- + CH3ONa ---> CH4 + -CH2ONa
possible example:
CH3MgI + CH3ONa ---> CH4 + IMgCH2ONa
CH3Li + CH3ONa ---> CH4 + LiCH2ONa
有意思,感觉Li的那个正向有可能,可溶剂选谁?
有没有搞计算的童鞋?
r******0
发帖数: 2753
2
来自主题: Macromolecules版 - 30个包子问问题
be careful when handle Na. Trace amount of water is fine. But if I were you,
I would use CH3ONa instead. Mix CH3ONa and C4H9OH first and distill CH3OH
out, then add the polymers in. Wish you good luck on the experiment.
a*****h
发帖数: 13
3
来自主题: Macromolecules版 - 请教PEO 合成高手
t-butyl ester group seems to be quite stable in basic conditions, while not
stable in acidic conditions. I once tried to remove the t-butyl groups by
CH3ONa it didnot work, or very less amount of tButyl groups were destroyed
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