Test e lab synthesis

considering the relative ease and availability of high purity test e raws, why go through this effort?
Post count and likes.

I did this in 2014 just to test my knowledge gathering skills. Its been sitting in my computer folder alongside other drugs.

I never used it, cuz pharma didn't hire

If there's no demand the topic will naturally die off

The next post will be the sort of the keystone step imo.

Will post if the number of likes increases
 
You have two ketone.
sodium borohydride reduces both aldehyde and ketone. You have no aldehyde group in 4-ad. So you have to protect ketone on position 3
 
You have two ketone.
sodium borohydride reduces both aldehyde and ketone. You have no aldehyde group in 4-ad. So you have to protect ketone on position 3
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Never tried it, i wouldn't know. The info i have, is old. Things change.

Must be nice to be able to be a roid chemist

Page 2
 
You know what aldehyde and ketone means?
Aldehyde is in general more reactive because of less steric hinderence. There is teo R groups attached to ketone while aldehyde has one R group and one hydrogen which is way smaller.
4-ad does not contain any aldehyde. You are mixing everything together
 
You know what aldehyde and ketone means?
Aldehyde is in general more reactive because of less steric hinderence. There is teo R groups attached to ketone while aldehyde has one R group and one hydrogen which is way smaller.
4-ad does not contain any aldehyde. You are mixing everything together
That is true, but in this case the ketone involved is an enal. That's a conjugated bond.

So yes there is a difference.

We are not making test from simple acetone or aldehyde.

You have swiftly turned a cyclic compound into a linear planar one, just to get a emotional reaction.
 
You know what aldehyde and ketone means?
Aldehyde is in general more reactive because of less steric hinderence. There is teo R groups attached to ketone while aldehyde has one R group and one hydrogen which is way smaller.
4-ad does not contain any aldehyde. You are mixing everything together
You are reducing the ketone group at 17 position. Under same conditions, the ketone group will be reduced too. If i am not wrong, the ketone group at 3 position is less reactive because of stability from the double bond than the other ketone, but still reactive
 
You are reducing the ketone group at 17 position. Under same conditions, the ketone group will be reduced too. If i am not wrong, the ketone group at 3 position is less reactive because of stability from the double bond than the other ketone, but still reactive
Not me, Dale.
He reports good selectivity with the conditions he tried in his paper, which is why i brought up the protective group issue.

Is simply I didn't know it was needed.
If it's needed it's good to know
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Page 3
 
Not me, Dale.
He reports good selectivity with the conditions he tried in his paper, which is why i brought up the protective group issue.

Is simply I didn't know it was needed.
If it's needed it's good to know
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Page 3
Mate, the study compares aldehyde with ketone. Not ketone with ketone
I am understanding you wrong correct me
 
Mate, the study compares aldehyde with ketone. Not ketone with ketone
I am understanding you wrong correct me
The introduction of the paper states what you said

But this is expanded to compare the other carbonyls. I think the misunderstanding is i am referring to 4AD, which is only has an enal and a ketone. Since my thread subject is about test only, 4i is what i focus on.

Also because i keep feeding the publication dripwise for post count and likes.

Which is why 4i cannot be understood in context yet

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You can see the selectivity of the ketone over the ketone over the enal in page 4. 97%. Of course someone has to reproduce this in a lab to check.

There is no protection procedure in the method. Which is why i remarked the difference in @mochul's method.
 

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This ends the keystone step for me.
You can see the conditions used are quite extreme for compound 4i. A -78 deg acetone bath. Thats unsustainable in homebrew. You need a cryocooler.

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Can you link the whole paper. I will read it when i have time. I am second year biopharmaceutical student so i should be able to understand it.
 
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