Aldol condensations of chiral ethylketones: Control by chiral boron reagents.
作者:Ian Paterson、M. Anne Lister
DOI:10.1016/s0040-4039(00)80157-4
日期:——
The chiral reagents (+)- and (−)-Ipc)2BOTf, in the presence of Et3N, are used to control the aldol condensation reactions of chiral ethylketone 5 with prochiral aldehydes. The SS isomer, 6 or 8, or SA isomer, 7 or 9, is then formed in > 99% ee and with up to 93% diastereoselectivity.
在Et 3 N存在下,手性试剂(+)-和(-)-Ipc)2 BOTf用于控制手性乙酮5与前手性醛的醛醇缩合反应。的SS异构体,6或8,或SA异构体,7或9,然后形成在> 99%ee的并用高达93%的非对映选择性。