Can we deprotonate hydroxyl group of mandelic or salicylic acid?

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What could be a reason for the anomalous behavior of T2 relaxation at different temperatures?

T2 relaxation of protons are reproducible but fluctuating at different temperatures.

10 November 2013 2,838 2 View

How to decide the suitable pH for a coordination complex preparation (in general)?

Metal Chlorides undergo hydrolysis in water. So we add acid to prevent that. Now if we add the ligands and if the solubility product is low, we may end up with the precipitate. But do we need to...

09 October 2012 1,066 13 View

Measuring the concentration of lanthanide ion in aqua solution using citrate as the complexing agent

According to the literature, (Applied spectrosopy, Volume 47, Number 6, 1993), I should have got an absorption maxima at 240nm.. 1 had taken 1:1 ratio of citric acid and lanthanum chloride but my...

09 October 2012 5,030 1 View

How can I convert dialkyl ammonium chloride to dialkyl amine efficiently?

In the presence of excess of dialkyl amine, can I expect an equilibrium between the ammonium chloride (alkylated) and corresponding amine? How do I separate the expected dialkyl amine?

09 October 2012 594 2 View

How to convert secondary ammonium chloride to secondary amine?

Ammonium chloride can be alkylated quite easily. But how can we convert them to corresponding amines?

08 September 2012 9,175 1 View

Can anybody suggest a few examples for non-halogenated, hydrphobic and highly coordinating anions?

or Hydrophobic chelating ligands

08 September 2012 375 0 View

How to prepare 15N enriched amines?

15N enriched secondary amines from enriched ammonium chloride

08 September 2012 6,694 0 View

Preparation of Standard solutions of metal ions

How to prepare the stock solutions of exact concentrations of metal ions with the following composition XCl3. nH2O? Is it right if I consider the molecular weight of anhydrous salt for all my...

08 September 2012 6,210 13 View

How to prepare anhydrous salt of LnCl3. xH2O?

Ln=La,Lu,Y in particular.

07 August 2012 4,008 2 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

16 June 2021 0 0 View

fatal error

16 June 2021 0 0 View

fatal error

16 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

Sivaraman Gandhi

Instead of sodium hydride you may use NaOH as a base, If you use NaH H2 evolution occurs, but in case of NaoH it wont occur.

Vasantha Gowda

Are you sure that we can ionize these hydroxyl protons(pKa is above 14) with NaOH? I do not want excess of NaOH or any other base remaining there without being consumed.

William Harter

tBuOK might work but the anions would be in equillibrium. LDA would deprotonate alcohols

ya it sure LDA do the job..

Gopinath Gorai

you can try with simple NaH

Ram Reddy T

Even K2CO3 also works for salicilic acid, i have tried and succeeded for the preparation of methyl ether in acetone and methyl iodide.