Tetrahedron Letters p. 4893 - 4896 (1991)
Update date:2022-07-30
Topics: Isolation and Purification Scale-up and optimization
Oppolzer
Kingma
Pillai
New saccharine-derived, crystalline acryloylsultams 12 undergo efficient 1,3-dipolar cycloadditions of nitrile oxides with ≥ 95:5 stereoface discrimination. Products 13 or 14 are purified by simple crystallization and cleaved with recovery of the chirophore to provide optically pure Δ2-isoxazolines 15.
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Doi:10.1002/chem.201203927
(2013)Doi:10.1021/ol300926d
(2012)Doi:10.1134/S1070427212040209
(2012)Doi:10.1007/s10895-010-0747-5
(2011)Doi:10.1021/acs.orglett.0c00038
(2020)Doi:10.1021/jo501460h
(2014)
