Synthesis of synthons: The asymmetric hydrogenation and subsequent in situ lactonization with Ru-diphosphines results in the direct conversion of a series of 2-acylarylcarboxylates including 2-aroylarylcarboxylates into the corresponding optically active 3-substituted phthalides under mild reaction conditions.

中文翻译：

---

钌催化的2-酰基芳基羧酸酯的对映选择性加氢/内酯化：直接获得手性3-取代的邻苯二甲酰亚胺

合成子的合成：不对称氢化和随后用Ru-二膦进行原位内酯化可在温和的反应条件下将包括2-芳基芳基羧酸盐在内的一系列2-酰基芳基羧酸盐直接转化为相应的光学活性3-取代的邻苯二甲酸酯。