Yes, PTC means Phase Transfer Catalyst. Their purpose is to "fuck up" layers of normally immiscible solvents, as they are soluble in both and are able to carry other molecules from one phase into the other... :(
Post 504831 (https://www.thevespiary.org/talk/index.php?topic=7283.msg50483100#msg50483100)
(Nicodem: "A must have PTC review", Chemistry Discourse)
Post 531883 (https://www.thevespiary.org/talk/index.php?topic=6646.msg53188300#msg53188300)
(indole_amine: "Phase Transfer Catalysis - Comprehensive Review", Chemistry Discourse)
I doubt that you will have luck with non-polar xtractions (although the benzyl group could makeĀ big difference, regarding solubility)... but maybe you should just try it with a small amount; experiment is king!
indole_amine