Found the benzylaldehyde + alanine=PPA, seems simple with the exception of removing the benzylamine byproduct from the final product - What do bees think about P2P by taking the crude PPA with benzylamine , covering with toluene, hydrolyzing with H2S04/ZnCl,separating, and evapping the toluene? Will the benzylamine hydrolyze into anything that will be taken up in the toluene? Is this a reasonable route to P2P?