Author Topic: isolating ergolines using sorbents including exchange resins  (Read 463 times)

jon

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Re: isolating ergolines using sorbents including exchange resins
« Reply #40 on: August 26, 2012, 06:14:09 PM »
what i was describibg was a way of synthesizing amides of lysergic acid skipping lysergic acid hydrolysis by going straight to the ester it was something i stumbled upon last year and i thought how convenient.
basically like i said the ester comes out clean and quantitative and you react that with what ever amine you want to in alcohol.
they suggest a sealed vessel and heat but my intuition tells me better yeilds would be had with time and stp.
60% is what they got it is'nt pyop but damn easy when you think about it.
the isomer ratio coming out of the pot was 80% d 20% l
i would just chromatograph the end product but that's because i'm lazy.
lemme find the patent there's even czech patents that use the pentachlorphenyl ester and get stellar yeilds at room temperature

overunity33

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Re: isolating ergolines using sorbents including exchange resins
« Reply #41 on: August 26, 2012, 09:10:13 PM »
this methyl ester method shows so much promise I can't believe nobody has tried it.  Keep throwing theory and refs around and i bet someone will give it a shot ;)
Even isomers become useful in this method, which cant be said for other methods.

aniracetam

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Re: isolating ergolines using sorbents including exchange resins
« Reply #42 on: August 26, 2012, 09:22:22 PM »
just ordered amberlite IR-120 (H+), to supplement the amberlite 252 Na. this combo should give some decent resolution packed in a 1 m column

« Last Edit: September 14, 2012, 05:10:55 PM by aniracetam »
"Experiments are the only means of knowledge at our disposal. The rest is poetry, imagination." - Max Planck

overunity33

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Re: isolating ergolines using sorbents including exchange resins
« Reply #43 on: September 23, 2012, 07:28:33 AM »
Very nice :), but seriously can we talk about the methyl ester method? I think it may have been using during the total synthesis of lysergic acid, can't find the paper. 

aniracetam

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Re: isolating ergolines using sorbents including exchange resins
« Reply #44 on: September 23, 2012, 05:27:43 PM »
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"Experiments are the only means of knowledge at our disposal. The rest is poetry, imagination." - Max Planck