Aluminum Palladium Galinstan amalgam or Al/Pd/GaInSn is something that can be used for an alternative to toxic Aluminum Mercury amalgam for reductive amination. Cyclohexyl-2-Propanone and Methylamine in Ethanol in a Carbon Dioxide inert atmosphere can be reduced to Propylhexedrine (Cyclohexyl-2-AminoPropane) and filter 90% of the Aluminum Hydroxide Al(OH)3 Ethanol water Propylhexedrine solution through a Buchner funnel with Zeolite careful not to spill over Palladium Galinstan amalgam, then add everclear to the remaining 10% in the round bottom flask, then filter 90% and you got 99% of Propylhexedrine ethanol water solution. Dry with Anhydrous Magnesium Sulfate, filter through Buchner funnel, pour in a beaker, then bubble dry HCl gas through the Propylhexedrine freebase to acid salt (Acid Salting) the Propylhexedrine into Propylhexedrine HCl salt. Palladium Galinstan is reusable for Aluminum Palladium Galinstan amalgam reductive amination. Temperature 20°C to 30°C and reaction time 24 hours. Al/Pd/GaInSn .
Tony: I put 100g Galinstan (69g Gallium + 21g Indium + 10g Tin) and 50mg Palladium shot in a crucible and added 100g Aluminum foil to make Aluminum Palladium Galinstan amalgam. I used Aluminum Palladium Galinstan amalgam to do reductive amination on Cyclohexyl-2-Propanone Methylimine in ethanol in a Carbon Dioxide inert atmosphere to make Propylhexedrine. Then bubble HCl for Propylhexedrine HCl and clean it with Anhydrous Acetone to get rid of excess HCl. Temperature 20°C to 30°C and reaction time 24 hours.