What if you dissolve Norpropylhexedrine (Cyclohexylaminopropane) in 50% Ethanol and 50% 2-methyl-2-butanol and cool it to -10°C (14°F) and then bubble HCl gas through it? Will the HCl still react with 2-methyl-2-butanol to form 2-methyl-2-chlorobutane, or will it stay 2-methyl-2-butanol and Norpropylhexedrine successfully becomes Norpropylhexedrine HCl?