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THCA-ANALOG via Birch Reduction

jmc31337

Bluelighter
Joined
Sep 22, 2026
Messages
93
I proposed a potential analog and i would like some feedback from organic chem level knowledgeable types
1) What we gonna call this bs? Insofar as, IUPAC nomeclature goes, im def. looking for answer to that (not even AI helping here)
Guess: 1,4-cyclohexadienyl-dihydrotetrahydrocannabinolic acid

the write up excerpt i created can be viewed below

Note: this is a predictive synthesis pathway mechanism and the information is to be treated as such
I have not tried this lab synthesis yet, i have not smoked this neither (yet
:g:
) and dont recommend anyone to do so due to the fact small molecular changes can have big consequences




Conclusion to be drawn is:
With the loss of 1 degree of unsaturation (Hydrogen Deficiency Idex) loss of one π bond when converting the benzene ring to a cyclohexa-1,4-diene ring creates this 1,4-cyclohexadiene THCA analog with altered aromaticity and electronic structure. Because the THCA backbone remains largely nonpolar, the analog would likely retain cannabinoid-like lipophilicity, making BBB (blood brain barrier) interaction plausible. The major unknown is how the altered ring changes the molecule’s behavior in the body. If it reaches the brain, the axonal/neural receptor lock-and-key analysis becomes whether the modified ring still provides the correct 3D shape, charge distribution, and hydrophobic contacts needed to interact with cannabinoid receptor binding sites. Removing one π bond and losing aromatic stabilization may subtly change molecular geometry and electronic properties, which could alter receptor fit. The result could be changed activity — potentially weaker, stronger, different, or negligible — because even a small structural modification can shift receptor interactions. In other words, the analog could have a distinct pharmacological profile rather than simply being a stronger or weaker version of THCA.



Final newbie OFF TOPIC chem note: the NH3 ammonia liquid IS NOT THE SAME ammonia at hardware stores NH4OH (though drying tubes and dissecant can yield NH3 from NH4OH)
 
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Hey, genuine question......but why? Like what benefit could this provide users beyond what is currently available?
 
im with ya, im all for smoking good grown green
I was more curious about the predictive reaction of this and wouldnt have even carried this around had i not hit 50% off the IBM RXN.
Sitting around studying over some chem and led to this, seeing if I did the curved arrow mechanisms right too
As far as i know, for a lil lab experiment right, royal blue and weed oils arent illegal (rather this experiment can be done legally somewhere on earth)
Lab would at least allow me to determine layering
And yea assuming this could be synthesized i dunno what this shit would do to you
i looked online, hasnt really been discussed too much in the science forums
 
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Predictive pathways are fine to discuss but the safety caveat at the end is doing a lot of work here. Small structural changes can absolutely flip activity or toxicity in ways nobody predicts.
 
Hey, genuine question......but why? Like what benefit could this provide users beyond what is currently available?
This might work very differently (bind differently, be more potent, longer duration, or do the opposite), even if it's not the next best thing though it can still help tell us things better via trials.

@jmc31337 if you haven't already run your paper through a few different AIs, IIRC there were some call outs on over assumptions that you might want to consider - I'm not a chemist and I kinda followed the AIs point but don't understand enough about methodology/specifics to explain
 
@Skorpio Doesn't seem to be any moderators left in CD. Would you consider this synthesis discussion? I suppose it's not giving "Dissolve x grams in x mL heat to x degrees" etc.
 
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@Skorpio Doesn't seem to be any moderators left in CD. Would you consider this synthesis discussion? I suppose it's not giving "Dissolve x grams in x mL heat to x degrees" etc.
I am personally fine with it. I will of course defer to judgement of our moderators, @nepalnt21 and @paranoid android

My guidelines for off-limits synth discussion typically follow these principles.

1). Is the post discussing a hypothetical synthesis or is it posting a recipe for a compound?

2). Is the synthesis for a drug which people commonly try to make on their own?

3). Is the synthesis for something particularly hazardous?

4). How specialized is the route itself?

The post above is for a novel compound, is theoretical, not assumed to be particularly nasty, and while birch reductions aren’t like the craziest thing in chemistry, this isn’t like a shake and bake prep. Plus we have had discussion of acid catalyzed isomerization of CBD to THC, dehydrogenation to HHC, and you have certainly discussed aspects of synthesis of 7-OH.

Not to be rude to the OP, but this document feels like chemistry homework rather than a clandestine synthesis.
I proposed a potential analog and i would like some feedback from organic chem level knowledgeable types
1) What we gonna call this bs? Insofar as, IUPAC nomeclature goes, im def. looking for answer to that (not even AI helping here)
Guess: 1,4-cyclohexadienyl-dihydrotetrahydrocannabinolic acid

the write up excerpt i created can be viewed below

Note: this is a predictive synthesis pathway mechanism and the information is to be treated as such
I have not tried this lab synthesis yet, i have not smoked this neither (yet
:g:
) and dont recommend anyone to do so due to the fact small molecular changes can have big consequences
Conclusion to be drawn is:
With the loss of 1 degree of unsaturation (Hydrogen Deficiency Idex) loss of one π bond when converting the benzene ring to a cyclohexa-1,4-diene ring creates this 1,4-cyclohexadiene THCA analog with altered aromaticity and electronic structure. Because the THCA backbone remains largely nonpolar, the analog would likely retain cannabinoid-like lipophilicity, making BBB (blood brain barrier) interaction plausible. The major unknown is how the altered ring changes the molecule’s behavior in the body. If it reaches the brain, the axonal/neural receptor lock-and-key analysis becomes whether the modified ring still provides the correct 3D shape, charge distribution, and hydrophobic contacts needed to interact with cannabinoid receptor binding sites. Removing one π bond and losing aromatic stabilization may subtly change molecular geometry and electronic properties, which could alter receptor fit. The result could be changed activity — potentially weaker, stronger, different, or negligible — because even a small structural modification can shift receptor interactions. In other words, the analog could have a distinct pharmacological profile rather than simply being a stronger or weaker version of THCA.



Final newbie OFF TOPIC chem note: the NH3 ammonia liquid IS NOT THE SAME ammonia at hardware stores NH4OH (though drying tubes and dissecant can yield NH3 from NH4OH)

I would advise strong caution with this.

First, the birch reduction is about as gentle as a blowtorch; you will likely see unwanted side products from your reaction. This will both make the work up more complicated and increase the risk of adverse effects if consumed.

Second, I would worry about possible toxicity if any type of quinone were to form (either directly from the reaction, or due to metabolism). These are often quite toxic such as the metabolite of acetaminophen, NAPQI (n-acetyl-para-benzoquinone imine) is what fries your liver (due to being such a good electrophile). It’s a cool thought experiment, but seems risky.
 
I am personally fine with it. I will of course defer to judgement of our moderators, @nepalnt21 and @paranoid android

My guidelines for off-limits synth discussion typically follow these principles.

1). Is the post discussing a hypothetical synthesis or is it posting a recipe for a compound?

2). Is the synthesis for a drug which people commonly try to make on their own?

3). Is the synthesis for something particularly hazardous?

4). How specialized is the route itself?

The post above is for a novel compound, is theoretical, not assumed to be particularly nasty, and while birch reductions aren’t like the craziest thing in chemistry, this isn’t like a shake and bake prep. Plus we have had discussion of acid catalyzed isomerization of CBD to THC, dehydrogenation to HHC, and you have certainly discussed aspects of synthesis of 7-OH.

Not to be rude to the OP, but this document feels like chemistry homework rather than a clandestine synthesis.



I would advise strong caution with this.

First, the birch reduction is about as gentle as a blowtorch; you will likely see unwanted side products from your reaction. This will both make the work up more complicated and increase the risk of adverse effects if consumed.

Second, I would worry about possible toxicity if any type of quinone were to form (either directly from the reaction, or due to metabolism). These are often quite toxic such as the metabolite of acetaminophen, NAPQI (n-acetyl-para-benzoquinone imine) is what fries your liver (due to being such a good electrophile). It’s a cool thought experiment, but seems risky.
Fair enough. I only tagged you cuz it appears there's no CD mods?
I generally don't hang out in CD, and I did not know conversion topics were allowed. I was* pretty strict on synthesis talk discussion when I was a mod and I agree this thread is not a step by step. Just wanted to let someone* make that call.

As far as I remember, I don't believe I've ever said anything specific about conversion to 7-OH aside from the fact that it's easy and maybe light discussion over the different routes.

It DOES look like homework, a lot of effort went into the writeup so I applaud that.
 
I am personally fine with it. I will of course defer to judgement of our moderators, @nepalnt21 and @paranoid android

My guidelines for off-limits synth discussion typically follow these principles.

1). Is the post discussing a hypothetical synthesis or is it posting a recipe for a compound?

2). Is the synthesis for a drug which people commonly try to make on their own?

3). Is the synthesis for something particularly hazardous?

4). How specialized is the route itself?

The post above is for a novel compound, is theoretical, not assumed to be particularly nasty, and while birch reductions aren’t like the craziest thing in chemistry, this isn’t like a shake and bake prep. Plus we have had discussion of acid catalyzed isomerization of CBD to THC, dehydrogenation to HHC, and you have certainly discussed aspects of synthesis of 7-OH.

Not to be rude to the OP, but this document feels like chemistry homework rather than a clandestine synthesis.



I would advise strong caution with this.

First, the birch reduction is about as gentle as a blowtorch; you will likely see unwanted side products from your reaction. This will both make the work up more complicated and increase the risk of adverse effects if consumed.

Second, I would worry about possible toxicity if any type of quinone were to form (either directly from the reaction, or due to metabolism). These are often quite toxic such as the metabolite of acetaminophen, NAPQI (n-acetyl-para-benzoquinone imine) is what fries your liver (due to being such a good electrophile). It’s a cool thought experiment, but seems risky.
well if i assume perfect lab world, and the only byproducts are what i listed, ammonium citrate and lithium citrate (the former used in food preservatives the latter already used in mood stabilizer lithium big pharma drugs) i figured worst comes to worst it be iight
Secondly, worse side effects happen off the shake n bake over the birch in other avenues of things out there
 
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