LSDの作り方
LSD-25 Synthesis from "Psychedelic Guide to the Preparation
of the Eucharist":
Preparatory arrangements: Starting material may be any lysergic
acid derivative, from ergot on rye grain or from culture, or morning
glory seeds or from synthetic sources. Preparation #1 uses any amide,
or lysergic acid as starting material. Preparations #2 and #3 must
start with lysergic acid only, prepared from the amides as follows:
10 g of any lysergic acid amide from various natural sources
dissolved in 200 ml of methanolic KOH solution and the methanol
removed immediately in vacuo. The residue is treated with
200 ml of an 8% aqueous solution of KOH and the mixture heated
on a steam bath for one hour. A stream of nitrogen gas is passed
through the flask during heating and the evolved NH3 gas may be
titrated is HCl to follow the reaction.The alkaline solution is made
neutral to congo red with tartaric acid,filtered, cleaned by extraction
with ether, the aqueous solution filtered and evaporated. Digest
with MeOH to remove some of the coloured material from the crystals
of lysergic acid. Arrange the lighting in the lab similarly to that
of a dark room. Use photographic red and yellow safety lights, as
lysergic acid derivatives are decomposed when light is present.
Rubber gloves must be worn due to the highly poisonous nature of
ergot alkaloids. A hair drier, or, better, a flash evaporator, is
necessary to speed up steps where evaporation is necessary.
Preparation #1 Step I. Use Yellow light Place one volume of
powdered ergot alkaloid material in a tiny roundbottom flask and
add two volumes of anhydrous hydrazine. An alternate procedure
uses a sealed tube in which the reagents are heated at 112 C. The
mixture is refluxed (or heated) for 30 minutes. Add 1.5 volumes
of H2O and boil 15 minutes. On cooling in the refrigerator,
isolysergic acid hydrazide is crystallised. Step II. Use Red light
Chill all reagents and have ice handy. Dissolve 2.82 g hydrazine
rapidly in 100 ml 0.1 N ice-cold HCl using an ice bath to keep
the reaction vessel at 0 C. 100 ml ice-cold 0.1 N NaNO2 is added
and after 2 to 3 minutes vigorous stirring, 130 ml more HCl is added
dropwise with vigorous stirring again in an ice bath. After 5
minutes, neutralise the solution with NaHCO3 saturated sol. and
extract with ether. Remove the aqueous solution and try to dissolve
the gummy substance in ether. Adjust the ether solution by adding
3 g diethylamine per 300 ml ether extract. Allow to stand in the
dark, gradually warming up to 20 C over a period of 24 hours.
Evaporate in vacuum and treat as indicated in the purification
section for conversion of iso-lysergic amides to lysergic acid
amides. Preparation #2 Step I. Use Yellow light 5.36 g of
d-lysergic acid are suspended in 125 ml of acetonitrile and
the suspension cooled to about -20 C in a bath of acetone cooled
with dry ice. To the suspension is added a cold (-20 C) solution of
8.82 g of trifluoroacetic anhydride in 75 ml of acetonitrile. The
mixture is allowed to stand at -20 C for about 1.5 hours during
which the suspended material dissolves, and the d-lysergic acid
is converted to the mixed anhydride of lysergic and trifluoroacetic
acids. The mixed anhydride can be separated in the form of
an oil by evaporating the solvent in vacuo at a temperature below
0 C, but this is not necessary. Everything must be kept anhydrous.
Step II. Use Yellow light The solution of mixed anhydrides in
acetonitrile from Step I is added to 150 ml of a second solution
of acetonitrile containing 7.6 g of diethylamine. The mixture is held
in the dark at room temperature for about 2 hours. The acetonitrile
is evaporated in vacuo, leaving a residue of LSD-25 plus other
impurities. The residue is dissolved in 150 ml of chloroform and
20 ml of ice water. The chloroform layer is removed and the
aqueous layer is extracted with several portions of chloroform.
The chloroform portions are combined and in turn washed with
four 50 ml portions of ice-cold water. The chloroform solution
is then dried over anhydrous Na2SO4 and evaporated in vacuo.
Preparation #3 This procedure gives good yield and is very fast
with little iso-lysergic acid being formed (its effect are mildly
unpleasant). However, the stoichometry must be exact or yields
will drop. Step I. Use White light Sulfur trioxide is produced
in anhydrous state by carefully decomposing anhydrous ferric
sulfate at approximately 480 C. Store under anhydrous conditions.
Step II. Use White light A carefully dried 22 litre RB flask
fitted with an ice bath, condenser, dropping funnel and mechanical
stirrer is charged with 10 to 11 litres of dimethylformamide
(freshly distilled under reduced pressure). The condenser and
dropping funnel are both protected against atmospheric moisture.
2 lb of sulfur trioxide (Sulfan B) are introduced dropwise,
very cautiously stirring, during 4 to 5 hours. The temperature is
kept at 0-5 C throughout the addition. After the addition is
complete, the mixture is stirred for 1-2 hours until some separated,
crystalline sulfur trioxide dimethylformamide complex has
dissolved. The reagent is transferred to an air- tight automatic
pipette for convenient dispensing, and kept in the cold. Although
the reagent, which is colourless, may change from yellow to red,
its efficiency remains unimpaired for three to four months in cold
storage. An aliquot is dissolved in water and titrated with standard
NaOH to a phenolphthalein end point. Step III. Use Red light
A solution of 7.15 g of d-lysergic acid mono hydrate (25 mmol)
and 1.06 g of lithium hydroxide hydrate (25 mmol) in 200 ml
of MeOH is prepared. The solvent is distilled on the steam bath
under reduced pressure. the residue of glass-like lithium
lysergate is dissolved in 400 ml of anhydrous dimethyl formamide.
From this solution about 200 ml of the dimethyl formamide is
distilled off at 15 ml pressure through a 12 inch helices packed
column. the resulting anhydrous solution of lithium lysergate left
behind is cooled to 0 C and, with stirring, treated rapidly with
500 ml of SO3-DMF solution (1.00 molar). The mixture is stirred
in the cold for 10 minutes and then 9.14 g (125.0 mmol) of
diethylamine is added. The stirring and cooling are continued for
10 minutes longer, when 400 ml of water is added to decompose
the reaction complex. After mixing thoroughly, 200 ml of
saturated aqueous saline solution is added. The amide product
is isolated by repeated extraction with 500 ml portions of ethylene
dichloride. the combined extract is dried and then concentrated
to a syrup under reduced pressure. Do not heat up the syrup
during concentration. the LSD may crystallise out, but the crystals
and the mother liquor may be chromatographed according to the
instructions on purification. Purification of LSD-25 The material
obtained by any of these three preparations may contain both
lysergic acid and iso-lysergic acid amides.
Preparation #1 contains mostly iso-lysergic diethylamide and
must be converted prior to separation. For this material, go to
Step II first. Step I. Use darkroom and follow with a long wave
UV The material is dissolved in a 3:1 mixture of benzene and
chloroform. Pack the chromatography column with a slurry of
basic alumina in benzene so that a 1 inch column is six inches long.
Drain the solvent to the top of the alumina column and carefully
add an aliquot of the LSD-solvent solution containing 50 ml of
solvent and 1 g LSD. Run this through the column, following the
fastest moving fluorescent band. After it has been collected,
strip the remaining material from the column by washing with MeOH.
Use the UV light sparingly to prevent excessive damage to the
compounds. Evaporate the second fraction in vacuo and set aside
for Step II. The fraction containing the pure LSD is concentrated
in vacuo and the syrup will crystallise slowly. This material
may be converted to the tartrate by tartaric acid and the LSD
tartrate conveniently crystallised. MP 190-196 C.
Step II. Use Red light Dissolve the residue derived from the
methanol stripping of the column in a minimum amount of alcohol.
Add twice that volume of 4 N alcoholic KOH solution and allow the
mixture to stand at room temperature for several hours. Neutralise
with dilute HCl, make slightly basic with NH4OH and extract with
chloroform or ethylene dichloride as in preparations #1 or #2.
Evaporate in vacuo and chromatograph as in the previous step.
Note: Lysergic acid compounds are unstable to heat, light and oxygen.
In any form it helps to add ascorbic acid as an anti- oxidant, keeping
the container tightly closed, light-tight with aluminum foil, and in a
refrigerator.