Scalable Synthesis of β-Amino Esters via Reformatsky Reaction with N-tert-Butanesulfinyl Imines
作者:Kristin Brinner、Daniel Poon、Brandon Doughan
DOI:10.1055/s-0028-1087964
日期:2009.4
The Reformatsky reagents derived from ethylbromoacetate and tert-butyl bromoacetate add cleanly, in high yield, and with good diastereoselectivity to N-tert-butanesulfinyl aldimines and ketimines. Importantly, this reaction scales well (>50 mmol), and affords products upwards of 70% yield over three steps, starting from commercially available N-tert-butanesulfinamide, aldehydes, and ketones.