Cool the amine in container much below 0 C and dissolve 1 part amine in 3 parts anhydrous cold ether. Amine may be stored in this solution. For use, warm stock solution to room temperature and use the appropriate aliquot. Set up the entire apparatus the same as when adding the oxalyl chloride. Add the amine solution slowly to the IOC with vigorous stirring.
Vacuum filter the precipitate, using ether as a wash.
Prepare the indole glyoxyl amide by melting and casting into sticks if ether is to be used as a solvent. Aluminium foil makes a good mould for casting pieces that will fit through the condenser. Also a Soxhlet extractor may be used to add the crystals by slow solution into the ether. When there is no further reaction, add a few ml extra water and allow to settle finally and decant the clear liquid into an evaporating vessel. In order to purify DMT, begin after the LiAlH4 has been hydrolysed with methanol.