Dynamic Thermodynamic Resolution: Solvent Effects, Mechanism, and an Asymmetric 3,4,5-Substituted Benzazepine Synthesis
摘要:
The resolution in the lithiation-substitution sequence from 1 to 4-11 in MTBE is shown to be under thermodynamic control in contrast to the previous report of kinetic control in diethyl ether. Diastereomeric equilibration of a soluble complex is shown to be controlling and an asymmetric synthesis of a 3,4,5-substituted benzazepine is reported.
Dynamic Thermodynamic Resolution: Solvent Effects, Mechanism, and an Asymmetric 3,4,5-Substituted Benzazepine Synthesis
摘要:
The resolution in the lithiation-substitution sequence from 1 to 4-11 in MTBE is shown to be under thermodynamic control in contrast to the previous report of kinetic control in diethyl ether. Diastereomeric equilibration of a soluble complex is shown to be controlling and an asymmetric synthesis of a 3,4,5-substituted benzazepine is reported.
Dynamic Thermodynamic Resolution: Solvent Effects, Mechanism, and an Asymmetric 3,4,5-Substituted Benzazepine Synthesis
作者:Yong Sun Park、Eul Kgun Yum、Amit Basu、Peter Beak
DOI:10.1021/ol0604015
日期:2006.6.1
The resolution in the lithiation-substitution sequence from 1 to 4-11 in MTBE is shown to be under thermodynamic control in contrast to the previous report of kinetic control in diethyl ether. Diastereomeric equilibration of a soluble complex is shown to be controlling and an asymmetric synthesis of a 3,4,5-substituted benzazepine is reported.