论文部分内容阅读
4种金鸡纳生物碱-9-O-脯氨酸酯衍生物用于催化环己二酮与溴乙酰甲酸乙酯的不对称“中断的”Feist-Bénary反应,得到了高的化学产率(>92%)和最高为72%e.e.的立体选择性。
Four cinchona alkaloid-9-O-prolinate derivatives were used to catalyze the asymmetric “interrupted ” Feist-Bénary reaction of cyclohexanedione with ethyl bromoacetate to give high chemical yields Stereoselectivity (> 92%) and up to 72% ee.