What's new
  • Happy Birthday ICMag! Been 20 years since Gypsy Nirvana created the forum! We are celebrating with a 4/20 Giveaway and by launching a new Patreon tier called "420club". You can read more here.
  • Important notice: ICMag's T.O.U. has been updated. Please review it here. For your convenience, it is also available in the main forum menu, under 'Quick Links"!

Who Discovered THC? Setting the Record Straight

vapor

Active member
Veteran
http://cannabisdigest.ca/discovered-thc-setting-record-straight/


Anyone who delves into cannabis history, in pulp form or online, will have read that THC, the molecule and its specific structure, was discovered in 1964 at the Hebrew University of Jerusalem by Israeli researcher, Raphael Mechoulam and his associates. Cannabis Culture calls him ‘The Man.” If books aren’t your favourite, do a Google search on who discovered THC and you will see this fact for yourself. Until recently, I thought the same.



Then, this spring, I went on a self-guided history tour: the reading variety. The readings took me through a series of ‘truth serum’ experiments conducted by the US government during World War II and the cold war that followed it. One of the ‘sera’ used was cannabis. In both phases, researchers had used THC infused cigarettes: liquid THC mixed with tobacco. The first set of experiments was conducted in Washington DC during the war years 1942-3; the second set began in 1953 and ended officially as late as 1973, although its scope had already been limited by 1964. I also read a study commissioned by Fiorello La Guardia, New York City’s anti-prohibitionist mayor. Conducted by medical experts from 1939 to 1944, and recorded in the 1944 La Guardia Report, it had concluded that cannabis is harmless. These experts too had relied on cigarettes injected with THC.


roger adams in lab

Roger Adams in his lab

At some stage of this tour I stopped to ask this question. How did American scientists do trials with THC before THC had been discovered? According to the record, they were supposed to have had it before 1942. Opportunities to ask questions of this sort are rare; you don’t normally run into major contradictions in the literature. Intrigued, I switched directions, and started a different kind of search with a brand new question: Who discovered THC in 1940? This work had to be done online, as there appear to be no pulp based cannabis histories that provide a clue. I have to say, in anticipation of the story’s end, that the answer was not hard to find. Indeed, it was hidden in plain view.



The first thing I found was an essay by a British chemist, Roger G Pertwee, who identified a Roger Adams as having discovered THC in 1940. That was easy. Then I looked up Roger Adams. That was a revelation. It turned out that Adams was not at all obscure. He was a renowned and extensively published American organic chemist. There were more surprises. It soon became clear that Adams is widely recognized for his discovery of THC. He is invisible to cannabis historians. Who knows why? But he is very well known to the folk chemistry community: those DIY characters with labs or access to labs, who have been learning to make elaborate cannabis extracts all these years, and to test their potency. Look up the ‘Adams Scale’ for determining THC levels and you will see what I mean. Follow this magical trail a bit further and you will find Adams everywhere. So in honour of Adams and his followers, I offer the following ramble.



In 1937, under the direction of Harry Anslinger, Prohibition Commissioner of the newly formed Federal Bureau of Narcotics (FBN), cannabis became a banned substance in the US. In 1938, Anslinger convened a meeting of 23 individuals, each of which had some expertise in ‘marihuana.’ 1 This was a planning meeting to implement prohibition, and an information session to learn more about the plant. There were experts on psychological effects, on hemp crops, and on ‘marihuana’ chemistry. Of the psychologists we need say little. A key researcher present that day was James C. Munch. Munch had been testing ‘marihuana’ on dogs and rats. He thought it was shrinking their brains. He had also testified at a murder trial in which the defendant was claiming ‘marihuana’ induced insanity. Upon cross-examination, Munch stated that he had tried smoking it himself. After two puffs, he said, he had been transformed into a bat, had flown about the room and then into a deep inkwell. Opium, I suspect.



Then there were hemp specialists. It was explained to Anslinger that hemp plants were typically cut down at the end of their growth cycle, and left over the winter to ret in the fields. This process provided usable fibre, but created a problem. By popular report, the flowers were in the habit of disappearing; the neighbours liked them. There had been concern that these flowers might be “physiologically active.” Researchers of the day had a test they could use: the Beam test, developed in 1911, in the wake of Egypt’s prohibition of hashish.2 When applied to local hemp flowers, the test had confirmed the presence of an essential oil similar to that found in hashish, presumably CBD. They were thus thought to contain the “active principle” as the researchers called it, and hemp was termed a “public nuisance.”


The first tests using ‘marihuana’ were conducted during the years 1942-43 at St. Elizabeth’s Hospital in Washington DC

Finally there were the chemists. The FBN was keen to hunt down this “active principle,” whatever it was, but the commissioners’ chemists were floundering. A senior FBN chemist, Siegfried Loewe, decided to pass the work on to his friend, Roger Adams. Adams turned out to be a marvel. From 1940 through 1949, he and his associates carried out 27 studies on cannabis, published in the American Journal of Chemistry. He isolated Cannabinol (CBN), Cannabidiol (CBD) and Tetrahydrocannabinol (THC). He synthesized them. He developed THC acetate. The chemists of 1964 had the benefit of a new method of observation: Nuclear Magnetic Resonance spectroscopy. But Adams’ drawings of the respective molecules look like any of the others you are likely to meet. He inferred their structure and basically got them right. When you Google Adams and THC or THC acetate, you encounter detailed accounts on how Adams refined and super-refined potent cannabis extracts. You read about charcoal filtering in the ether phase; fractional distillation; producing THC from CBD, the virtues of THC acetate, and so on. Good sites are Kind Green Buds 3 and The Vaults of Erowid, but there are many.


delta-9-THC

delta-9-THC

Having cleared up the THC story, I continued reading about truth serum. The first tests using ‘marihuana’ were conducted during the years 1942-43 at St. Elizabeth’s Hospital in Washington DC. They were done under the auspices of the Office of Strategic Services (OSS), predecessor to the CIA. The goal was to invent techniques useful for questioning prisoners of war. Drug testing of this sort dated generally from the 1930s, and had made use of mescaline, scopolamine, and sodium pentothal, a barbiturate. The ‘marihuana’ was smoked as THC infused cigarettes, based on a liquid form provided by Adams’ laboratory. It was tested initially on employees of The Manhattan Project, the US’s ultra secret project to build an atomic bomb. Presumably the testers felt that this group already had a high level of security clearance. The cigarettes were tried subsequently on soldiers at US army bases. It was wartime, and they were looking for subversives. Truth to be told, no one concluded that ‘marihuana’ was a truth drug. It produced interesting results, entertaining results, but unveiled no secrets.



This fact did not stop the CIA from repeating such efforts in the 1950s and 60s. During the cold war era, under the supervision of its mind control group, MK ULTRA, THC laced cigarettes were offered to prisoners, mental patients unwitting vagrants, and sex workers. They didn’t reveal any secrets either. St. Elizabeth’s has since become the US office of Homeland Security.



Meanwhile, Roger Adams turned out to have a whimsical side. During a lecture to the National Academy of Sciences, detailing his work, he remarked casually that ‘marihuana,’ when smoked, had “pleasant effects.” This remark caused a major uproar. Anslinger snarled at Adams, and the Office of Naval Intelligence (ONI) wanted him labeled a security risk. Members of his team argued that they could not do without him. They called upon the FBI’s J. Edgar Hoover to intervene. Hoover lied. He told ONI that Adams was a very common name, and they must have gotten the wrong guy. Adams was placed, after this event, on a list of “people to be watched.”



Unrepentant, he became an equal opportunity supplier. If you read the La Guardia Report, you will come across this statement. “We are indebted to Dr. Roger Adams at the University of Illinois, and to Dr. H. J. Wollner, consulting chemist of the US Treasury, who supplied some of the active principles of marihuana which were used in the study.”4 Anslinger was enraged, called the study unscientific, roared at the chemists, and the rest is history. It is hard to fathom the selective bias that has coloured so many historical accounts. But the next time they tell you that THC was discovered in 1964, don’t believe it. It just ain’t so.





1. This is the same spelling that the Harper Government uses. I think it’s the prohibitionist spelling.
2. http://www.unodc.org/unodc/en/data-and-analysis/bulletin/bulletin_1962-01-01_3_page005.html As you will see from this link, Adams was a subject of study in the 1960s for researchers in the former Yugoslavia.
3. http://www.kindgreenbuds.com/cannabis-alchemy/isomerization/
4. http://hempshare.org/wp-content/uploads/2012/12/laguardia.pdf
 
A

acridlab

better question would be,, who created thc??? That would be the true discoverer, no?
 

G.O. Joe

Well-known member
Veteran
Adams or probably his students discovered the delta-8 isomer, by CBD isomerization. He thought this was the natural component - it's artificial and not as potent. Real THC was not isolated because the government would only provide Minnesota hemp which they knew was inactive.

Mechoulam had freedom, Lebanese hash provided by the police, and chromatography skills, along with the NMR.
 

Gry

Well-known member
Veteran
Very nice material here. I was introduced to oil in the very early seventies and was fortunate to live in the dc area . Library of Congress was were I ended up. Much of what you have listed here was available. Amazing how much of what we are familiar with now now in current American society has its roots with OSS people.
Though it has been a long time, what I came away with was that those who worked for our uncle went the extraction route where Mechoulam was the one to first reproduce it synthetically.
Loved your inclusion of Munch, I just thought he was telling tall tales.

As I recall , and it has been a long time, so please understand that, I ran across something that lead me to want to say that Adams crew was being fed by treasuary which had large supplies of quite active oil that was from the patchs all over - and that a primary was two very large sites in the Northern Va area , one being the current site of the Pentagon, and the second being on some land that was near to the site of the CIA building . The extract used was an acetylated cannabis oil . The procedures used to obtain it were very plainly documented. It was that which was used for loaded cigs in New York that were given to the gangster as in the hopes of using it as a truth serum.
This history is so neat, I dearly love it so. More more more !!!!
Thanks for a really neat thread here.

G.O. Joe you have covered some interesting material over the years.
 
Last edited:

Gry

Well-known member
Veteran
I recall having read that pharma companies planted cannabis in mountainous areas in Mexico and Columbia between the first and second world wars. I also recall supposition that the cannabis we saw in the seventies may well have been decedent from that.
Anyone have information on this ?
 

OvergrowDaWorld

$$ ALONE $$
Veteran
Awsome read vapor. Were gonna have to create the "Roger Adams" strain now.
Like Casey Jones , Ed Rosenthals SuperBud, etc., etc.
 

Chimera

Genetic Resource Management
Veteran
It's my understanding that Adams discovered and elucidated CBD (Cannabidiol), but not THC. I'd like to see some references to back up these claims.
 

Useful Idiot

Active member
Veteran
I'm just glad we have it.:woohoo:No disrespect to OP. I'm just sayin. Sorry to not be helpful.....I was just enjoying some THC.
 

fatburt

Member
who fuckin cares
you start a thread like this and cant even answer a month old question about your genetics on your own forum...
 

Only Ornamental

Spiritually inspired agnostic mad scientist
Veteran
Great, just great! :wallbash:
Another thread about a rational, scientific, and historical theme and what happens? Open house at the loony bin; bye-bye padded rooms, hello internet!! :spanky:
Go the f*** and molest someone of F-book, unlike us serious tokers, they're pretty fond of that over there ;) .

To get back on topic:
Fist attempts on isolating and characterising the active principle from cannabis were already done prior 1887. The obtained empirical formula were not really precise, though, and the structure remained completely unknown at first.
- Persenne mentioned cannabene (C18H20) and cannabene hydrocarbon (C18H22)
- Valente corrected that and claimed an oil with a boiling point of 256-258°C with an empirical formula of C15H24 and a density of 0.9289.
- Bolas and Francis used nitric acid on the alcoholic extract to isolate oxycannabin (but got the formula wrong C20H20O7)
- Other described constituents were cannabin, haschischin, and an alleged alkaloid cannabinin.
- Wood, Spivey and Easterfield tried to characterise cannabinol in 1896. They crystallised acetate salts and determined the (partial) structures of several constituents but failed to get the complete structures of THC and CBD right.
- Cahn got quite close to the structure of cannabinol, he just got the stereochemistry wrong.
- It was not until 1940 when Adams and Baker started over. They based their work on Cahn's findings but at first got the stereochemistry wrong as well... Only with the use of synthetic analogues and comparative spectral data did they succeed.

Unfortunately, I'm not aware of who and when figured out that the cannabis plant does in fact synthesise THCA (or CBDA) and not THC (or CBD, respectively) but, if I recall correctly, this is a rather recent finding.
 

G.O. Joe

Well-known member
Veteran
Unfortunately, I'm not aware of who and when figured out that the cannabis plant does in fact synthesise THCA (or CBDA) and not THC (or CBD, respectively)

It depends on how precise you want to be about it. IDK about correct structures and all that. Krejci and Santavy (1955) might want some credit. Shultz and Haffner (1960) might want some credit.

By 1938, I.B. Johns isolated the acids, distilled them and noted the gas, but failed to easily recognize it as CO2. It was known by 1942 (US government chemist Fulton, then Madinaveitia, Russell and Todd) that the acids were the natural form, and heating gave the neutral cannabinoids. But they didn't know what we know as the acids were. Fulton was close enough: "In fresh or recently air-dried marihuana itself the compounds soluble in aqueous alkali predominate, but after it is several years old the alkali-insoluble compounds predominate. Obviously some, at least, of the alkali-insoluble compounds are not produced as such by the plants, but are formed indirectly from the alkali-soluble compounds. In the writer’s opinion all the cannabinol compounds insoluble in alkali have this origin."
 

shaggyballs

Active member
Veteran
Man Joe!

You are much smarter than you look!:biggrin:....:hijacked:
You speak like the Stephen Hawking of ditchweeed....LOL
Just playin'.:tiphat:
But I am always impressed with the fact that you use so few words, to say so much!

shag
 

Latest posts

Latest posts

Top