One-Pot Enol Silane Formation/Mukaiyama-Mannich Addition of Ketones, Amides, and Thioesters to Nitrones in the Presence of Trialkylsilyl Trifluoromethanesulfonates
作者:C. Wade Downey、Carolyn M. Dombrowski、Erin N. Maxwell、Chelsea L. Safran、Odamea A. Akomah
DOI:10.1002/ejoc.201300691
日期:2013.9
Ketones, amides, and thioesters form enolsilanes and add to N-phenylnitrones in one pot in the presence of trimethylsilyl trifluoromethanesulfonate and trialkylamine. The reaction is general to a range of silyl trifluoromethanesulfonates and N-phenylnitrones. The β-(silyloxy)amino carbonyl products are stable to chromatography and can be isolated in 63–99 % yield.
1,3-Addition of silyl enol ethers to nitrones catalyzed by mesoporous aluminosilicate
作者:Suguru Ito、Yoshihiro Kubota、Masatoshi Asami
DOI:10.1016/j.tetlet.2014.07.020
日期:2014.8
Calcium catalyzed Mukaiyama–Mannich addition of silyl enol ethers to nitrones
作者:Elizabeth A. Congdon、Kristine A. Nolin
DOI:10.1016/j.catcom.2016.02.003
日期:2016.4
A method for synthesizing β-(silyloxy)amino carbonyls through the addition of ketone-derived silylenolethers to N-phenyl nitrones has been developed. The transformation is catalyzed by a commercially available calcium(II) complex affording β-(silyloxy)amino carbonyls in good to excellent yield.