Deuterium/Hydrogen transfer

[Raiden2012]

Hey all,

So I came across a question which had the Deuterium of one alcohol exchange with a H in a phenol. I was wondering what other situations will give rise to exchanges of hydrogens/deuterium without the 2 compounds reacting with each other.

Between carboxylic acids for sure.
How bout aldehydes and ketones?

Thanks

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[shaboobly]

alcohol hydrogens are slightly acidic and can disassociate in solution. aldehydic hydrogens will not be lost because then the carbon would become negative and the odds are just unlikely. ketones don't have hydrogens, except the somewhat slightly acidic alpha hydrogens (aldehydes have these too).

 

[sciencebooks]

Hey all,

So I came across a question which had the Deuterium of one alcohol exchange with a H in a phenol. I was wondering what other situations will give rise to exchanges of hydrogens/deuterium without the 2 compounds reacting with each other.

Between carboxylic acids for sure.
How bout aldehydes and ketones?

Thanks

TPR passage? I remember seeing this last week, lol.

 

[Raiden2012]

TPR passage? I remember seeing this last week, lol.

Correct. Btw sciencebooks, have you been taking the tpr practice tests? Did you notice the difficulty varies so much?

 

[sciencebooks]

Correct. Btw sciencebooks, have you been taking the tpr practice tests? Did you notice the difficulty varies so much?

Difficulty varies between their tests or between them and AAMC?

Because yes to both, 😉. I dropped 5 points once between two of their bio sections. I also took an AAMC just days after a TPR that scared me and went up 9 points. TPR is a beast with FLs.