What is the difference between hydroxyl, hydroxide and hydroxy?
2016年12月29日 · It is the monovalent group -OH which contains hydrogen and oxygen. The suffix -yl indicates it's a radical just like carbonyl. Hydroxy or hydroxy group: A hydroxy or …
Oxidation of hydroxyl groups of glucose - Chemistry Stack Exchange
2020年8月21日 · Oxidation of hydroxyl groups of glucose. In all oxidation reactions of glucose, it seems that the aldehyde group alone gets oxidised and none of the hydroxyl groups. In one …
organic chemistry - How do you create primary amines from …
2013年1月17日 · 27. In the conversion of primary alcohols to primary amines. R−CHX2OH R−CHX2NHX2 R − C H X 2 O H R − C H X 2 N H X 2. direct alkylation of ammonia normally is …
Why do hydroxyl groups only produce a singlet in proton NMR?
2016年3月21日 · At low temperatures, the NMR spectrum will indeed be as you predicted: the H H from OH O H will produce a quartet and likewise the H H from CHX3 C H X 3 will produce a …
Why is a hydroxyl group more activating than a methoxy group in ...
2015年2月26日 · Isn't the lone pair on the methoxy group oxygen more available for participating in resonance into the ring than the lone pair on hydroxyl oxygen due to the +I effect of the …
Why does a silane group react with hydroxyl groups?
2013年6月21日 · I suspect they were talking about hydroxyl groups in molecules, in which case Eric's answer (though rather short) is correct thermodynamically, and kinetically it probably …
How do epoxys cross-link? - Chemistry Stack Exchange
2015年1月2日 · An epoxy group reacts with ONE amine-hydrogen, i.e. one hydrogen attached directly to a Nitrogen atom (hence also amine-hydrogen equivalent weight). Note that every …
Hydroxyl group to free amine in polyethylene glycol using CDI?
2018年3月31日 · Conversion of Hydroxyl group to free amine in polyethylene glycol: This is a case of converting a primary alcohol to a primary amine $$\ce{R-CH2OH -> -> -> R …
organic chemistry - Why isn't the hydroxyl group of citric acid ...
2017年10月4日 · On the other hand, deprotonation of the hydroxyl group will not lead to any resonance stabilization, such that the hydroxyl group will be much less acidic than the carboxyl …
Is viscosity proportional to the number of hydroxyl groups?
2014年7月27日 · Sugars have many hydroxyl groups that give rise to many intermolecular hydrogen bonds and cause sugars to flow in a slow, syrupy manner. Here is a comparative …