在化学中，相转移催化剂或PTC是促进反应物从一个相迁移到另一个发生反应的相的催化剂。相转移催化是一种特殊的多相催化形式。离子反应物通常溶于水相，但在没有相转移催化剂的情况下不溶于有机相。催化剂的功能类似于将盐溶解到有机相中的洗涤剂。相转移催化是指在相转移催化剂的加入下反应的加速
Tetrabutylammonium acetate
Tetrabutylammonium thiocyanate
Tetrabutylphosphonium chloride
Tributyl(cyanomethyl)phosphonium chloride
Tetramethylammoniump-toluenesulfonate
Tetrapropylammonium bromide
Tetrapropylammonium iodide
N,N,N-Trimethyl-3-oxo-3-phenylpropan-1-aminium chloride
N,N,N-Trimethyldecan-1-aminium bromide
N,N,N-Trimethyldecan-1-aminium chloride
Diallyldimethylammonium chloride
Triethylmethylammonium chloride
Dimethyldiphenylphosphonium iodide
N-Ethyl-N,N-dipropylpropan-1-aminium iodide
5-Bromo-N,N,N-trimethylpentan-1-aminium bromide
1-(2-Hydrazinyl-2-oxoethyl)pyridin-1-ium chloride
2-((3-Carboxypropanoyl)oxy)-N,N,N-trimethylethanaminium chloride
3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride
3-Chloro-2-hydroxy-N,N,N-trimethylpropan-1-aminium chloride(65% in water)
N,N,N-Trimethyltetradecan-1-aminium chloride
3-Ethyl-5-(2-hydroxyethyl)-4-methylthiazol-3-ium bromide
N,N-Dibutyl-N-methylbutan-1-aminium chloride
Tetraethylammonium hydrogencarbonate
N,N,N-Trimethylhexadecan-1-aminium chloride
N,N,N-Trimethylpropan-1-aminium bromide
3-Benzyl-5-(2-hydroxyethyl)-4-methylthiazol-3-ium chloride
N-Benzyl-N,N-dimethylbenzenaminium chloride
N-Benzyl-N,N-dibutylbutan-1-aminium chloride
N-Benzyl-N,N-diethylethanaminium iodide
N,N,N-Trimethyl-1-phenylmethanaminium bromide
