配体，用于不饱和酯和三取代 C=C 键的非对称二羟基化。 Sharpless 不对称双羟基化的配体，用于由 (E,E)- 或 (E,Z)-1,3-二烯酸甲酯不对称制备 syn-3,5-羟基羧酸酯。 General description： DHQ)2PHAL is a modified cinchona alkaloid. application： (DHQ)2PHAL may be used in the following processes: As a catalyst Asymmetric and chemoselective N-allylic alkylation of indoles with Morita-Baylis-Hillman carbonates to form pyrrolo[1,2-a]indole and pyrrolo[3,2,1-ij]quinoline derivatives. As a ligand for the osmium catalyzed-Sharpless asymmetric dihydroxylation step of (S)-a-benzoyloxy carboxylic acids multistep synthesis. As a ligand for the carbamate based asymmetric aminohydroxylation of styrene derivatives to form N-carbamate protected R-arylglycinols.