N&PD Moderators: Skorpio
You should upgrade or use an alternative browser.Ketamine salts solubility
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Here Comes The Nazarene. Looks Good In That Magazine. Highly Seraphia, They Look After I.
Best Of Bluelight: Why Is Christian Music So Gay? LMAO.
Oh, eVOLvE!!!
L.O.V.E. Is Understanding!Rectify
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The product of this reaction will be racemic. There is no source of enantioinduction, as the catalyst is achiral. The classic way to perform the asymmetric aziridination is with copper and a chiral bisoxazoline ligand. Evans, in fact, performed the aziridination of propenylbenzene in the original paper. It only gave 70% ee, but enrichment via recrystallization should be viable.
https://doi.org/10.1021/acs.joc.8b01673
Direct N-H/N-Me Aziridination of Unactivated Olefins Using O-(Sulfonyl)hydroxylamines as Aminating Agents
Just so people realise, I AM aware that the quality of many papers of Indian origin are very dubious. Anyone else remember the fake '1-pot synthesis of fentanyl' that was someone's pHd work (and got retracted since it was made up) BUT:
1)This is published in the JOC, a high impact journal.
2)The researchers have worked on several papers on aziridines so it seems they have developed a knowledge bade.
3)They cite and are cited appropriately and not just other people within their own department (a la Jan Hendrik Schön AKA Nobel Scandal)
4)A totally different team developed a related approach (N-phenoxy) while they use an animoxy
So why the hassle?
OK, so you likely wonder what the heck is the point of THAT? Well, it's because that 3-membered ring is under a lot of strain and so it will ring-open to an alkanolamine or an aminoester or an aminoketone or an aminoalkylsulfonate or... well MANY things. What is even better is that the ring-opening will be almost 100% trans. I mean 99.8% ee or better (i.e. >99.9% trans)
Now, if one were to apply it to say (a ring-substituted) propenylbenzene, you could produce optically pure (ring-substituted) pseudoephedrine. I just use those as examples. I do not see any advantage in that since IF you wanted those, it's only of great benefit when the precursors are costly.
BTW the catalyst for THIS reaction is Bis[rhodium(α,α,α′,α′-tetramethyl-1,3-benzenedipropionic acid)]. The catalyst costs £400/gram so you can see it's only when the precursor is EXPENSIVE. It is actually a very interesting example of how a catalyst works. When you get that far down the periodic table, you can get some wacky oxidation states. Rh can be +1, +2, +3, +4, +5, +6 and the catalyst has a LOT of steric bulk and so it works by promoting an electron (HOMO/LUMO theory).
It get's VERY complex. I am hoping that their will be alternatives BUT I need the article to test.
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What About People Who REFUSE To Partake Of The Fruits Of The Holy Spirit? "Eat The [Communion] Cookie."--My Wonderful Cousina, Melissa Connor Cummings Pennington. Queen Of Clubs.
In addition, I did (and I admit I only) infer that BARE aziridines was a very important element of this step. There are quite a lot of papers on the production of protected aziridines but that would entirely defeat the object - making the N-triflate, deprotecting and then N-alkylating... is no saving.
If I were prepared to go via 3 steps I would just go via the aminohalide & then condense out the haloacid which is very well documented and has been around for over 50+ years. and is as cheap as dirt. It's the cost of the precursor that is the key here... which I did mention.
Of course it is certainly useful to have more reference. One can never have too much reference. So I must thank you for that... after all, you did far more than anyone else. If I am being a little vague as to the product, it's because it's a product that few know of and I certainly would not want to see the price & availability of the already costly precursor to shoot up. I'm sure you can appreciate that if suppliers SEE a suddenly profitable precursor, they will hike that price.Rectify
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THE_ALL_SEEING_EYE_OF_EWTN
1-(3,4-methylenedioxy-5-methoxyphenyl)-2-aminopropane
literally,
M = 1,000 + M = 1,000
So, M also equals 4.
4 + 4 = 8
MM = 2,000
AD = Anno Domini, which is Latin for, " in the year of Our Lord."
2,000 AD is also the famed node between the 2,000 year long Age Of Pisces, The Fish, To The 2,000 year long Old Earth Age Of Aquarius, The H2O Bearer.
MMDA, which to my knowledge I probably have never taken except for maybe once at the most, is said to go best with AMPhetamine, or phenylisopropylamine salts, and was 1st invented by a Romanian born chemist in Germany by the name of Lazaru, in 1887. Anyway, the last person I remember taking 2-aminonutmeg oil hydrochloride was morninggloryseed, but he died several years ago due to an opiate overdose. I am certainly open to trying, say, 300 mg of it someday. And also feel that by entering the OLYMPIAN UNIVERSE [Olympus Mons is on Mars] to borrow a phrase from PiHKAL regarding MMDA into this somatic Temple Of The Holy Ghost, I would not only be fit travel to EGYPT but also to rule it as well. Not literally, but rather spiritually and nominally. Need Good LSD-025? Ask 4 ANDREW.
According to Casey Kasem's top 40 popular music countdown, the #1 song in 1984--the year MDMA was made illegal in the United States was, of course, "Walk Like An Egyptian" by The Bangles. And it is, indeed, a catchy song.Rectify
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LINUS_LOVES_LINUX
N-allyl-1-(3,4-dimethylphenyl)-2-amino-1-methoxypropane
Nifty. This molecule reminds me somehow of new car smell, which they used to spray inside new cars in the 1980s before it was purged from our fragrant new Hondas by the scent Playa H8ers.
Le Petit Prince Will Fly Away...One Day.
3rd Time Being Sacrificed = The CHARM.
¡Espero Que Si!
Wherever I Go, There's A New Earth Waiting.Rectify
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