Synthesis and solubility measurement in supercritical carbon dioxide of two solid derivatives of 2-methylnaphthalene-1,4-dione (menadione): 2-(Benzylamino)-3-methylnaphthalene-1,4-dione and 3-(phenethylamino)-2-methylnaphthalene-1,4-dione Zacconi, F.C.; Nuñez, O.N.; Cabrera, A.L.; Valenzuela, L.M.; del Valle, J.M.; de la Fuente, J.C.; The Journal of Chemical Thermodynamics 2016, 103, 325-332