Evidence is presented which firmly establishes the R-configuration at C-2 in monocrotalic acid. In addition, (–)-methyl 2-hydroxy-2-methyl-3-oxobutanoate (methyl acetolactate) is shown to have the R-configuration.
提出的证据牢固地确定了在单
丁烯二酸中C-2处的R-构型。此外,显示(-)-2-羟基-2-甲基-3-甲基氧代
丁酸甲酯(乙酰
乳酸甲酯)具有R-构型。