The preparation of 2-hydrazinyl esters in high optical purity from 2-sulfonyloxy esters
作者:Robert V Hoffman、Kim Hwa-Ok
DOI:10.1016/s0040-4039(00)88996-0
日期:——
chiral 2-hydroxy esters, react enantiospecifically wilh BocNHNH2 to produce optically pure 2-hydrazinyl ester derivatives in high yields. The reaction of 2-nosyloxy esters with BocNHNH2 gives 2-(Bochydrazinyl) esters, thus providing an efficient (albeit slow) method for the conversion of esters to 2-hydrazinyl ester derivatives.
由手性2-羟基酯制备的手性2-三氟乙氧基酯与BocNHNH 2对映体特异性反应,以高收率生产光学纯的2-肼基酯衍生物。2-壬氧基氧基酯与BocNHNH 2的反应产生了2-(Bochydrazinyl)酯,因此提供了一种将酯转化为2-肼基酯衍生物的有效方法(尽管很慢)。