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
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