Yes, a quick TLC will tell you that you have more than one product in your mix.
Someone should run one like that on some ketone.
As long as you use enough acetonitrile so that the weight loss upon recrystallization is ~20% (the byproduct aldehyde is usually formed in around 15% yield in the case of safrole, and 5% other impurities, such as dimers, aren't unreasonable to expect). I believe it is smarter to remove it prior to amination though, as per the link I gave you.
This sounds like a mandatory step before consuming or giving away the final product,why i haven't a single report on someone doing such thing?Are you sure benzo wacker also gives 85/15 ratio of ketone/aldehyde?I think benzo wacker differs pretty much from 02 wacker,for example in latter,oxidiser(oxygen in that case) is constantly added to reaction mix while in benzo wacker, substance that is to be oxidised,is added durign the reaction.This thing definitely has to be checked and if it turns out to be true,solution to this problem has to be worked out,IMO.