Glyoxylates of three chiral alcohols were conveniently prepared by reaction of the alcohol with oxalyl chloride followed by reduction of the resulting alkoxy oxalyl chloride with tributyltin hydride. The products were isolated in 75–80% yield by straightforward flash chromatography.
先将三种手性醇与
草酰氯反应,然后用氢化三
丁基锡还原生成的
草酰氯烷氧基,这样就能方便地制备三种手性醇的
乙醛酸乙二酯。通过直接的闪速色谱法,可分离出产率为 75-80% 的产品。