作者:Dennis Hülsewede、Jan‐Niklas Dohm、Jan von Langermann
DOI:10.1002/adsc.201900217
日期:——
The unfavorable reaction equilibrium of transaminase‐catalyzed reactions is a major challenge for the efficient biocatalytic synthesis of chiral amines. In this study the synthetic utilization of a salt‐based, continuous in situ‐product crystallization is described to overcome the thermodynamic limit in amine transaminase‐reactions using only the commonly used amine donor isopropylamine. The simultaneous
Asymmetric Intermolecular Hydroamination of Unactivated Alkenes with Simple Amines
作者:Alexander L. Reznichenko、Hiep N. Nguyen、Kai C. Hultzsch
DOI:10.1002/anie.201004570
日期:2010.11.15
A hard nut to crack: The asymmetric intermolecular Markovnikov addition of simple amines to unactivatedalkenes can be achieved utilizing binaphtholate rare‐earth‐metal catalysts with up to 61 % ee and 73 % de in the case where R2 contains a stereogenic center.