LSA to LSD synthesis question


Don't buy from me
Jan 19, 2024
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I was reading the synthesis of LSD to LSA and my english level is a medium so i didn't really understood a step of the synthesis

"The reaction mixture is quenched with concentrated ammonium hydroxide (NH4OH) 100 ml 7.5 M. Layers are separated, the aqueous phase is extracted with 3x30 ml DCM. Organic layers are combined and evaporated in a rotovap machine at 35 °C under high vacuum.

The residue is dissolved in sodium bicarbonate (cold saturated aq solution) NaHCO3 40 ml and extracted with 3x20 ml EtOAc. Organic layers are combined and washed with deionized H2O, brine, and dried over MgSO4. Solution is filtered and evaporated in a rotovap machine at 40 °C under vacuum to a constant weight. A yield is 3.13 g before chromatography purification (optional), 93% purity."

After the evaporation, which balloon should I use ? A or G ?


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