A method for stereospecifically preparing chiral 2-substituted-4-hydroxy-2-cyclopenten-1-one which comprises asymmetrically reducing 2-substituted cyclopentane-1,3,4-trione to the corresponding 2-substituted-4(R)-hydroxy-cyclopentane-1,3-dione, enolizing the said dione to obtain the enol ester or enol ether configuration, reducing the enol ester or ether and recovering the desired compound. The chiral 2-substituted-4-hydroxy-2-cyclopenten-1-one are key intermediates in the preparation of prostaglandins.
一种立体选择性制备手性2-取代-
4-羟基-2-
环戊烯-1-酮的方法,包括将2-取代
环戊烷-1,3,4-三酮不对称还原为相应的2-取代-4(R)-羟基
环戊烷-1,3-二酮,使得该二酮烯醇化为烯酸酯或烯醚构型,还原所述烯酸酯或烯醚并回收所需化合物。手性2-取代-
4-羟基-2-
环戊烯-1-酮是合成
前列腺素的关键中间体。