The photochemical or thermal rearrangement of oxaziranes as a method in alkaloid synthesis
作者:Martin E. Kuehne、W.H. Parsons
DOI:10.1016/s0040-4020(01)88617-8
日期:1983.1
The conversion of cyclic ketones to β-arylethyl amine derived imines, their oxidation to oxaziranes and subsequent photochemical rearrangement to N-(β-arylethyl) lactams was probed as a potential method for alkaloid syntheses.
Fused N‐Heterocycles with Contiguous Stereogenic Centers Accessed by an Asymmetric Catalytic Cascade Reaction of Tertiary Enamides
作者:Li Zhen、Shuo Tong、Jieping Zhu、Mei‐Xiang Wang
DOI:10.1002/chem.201904596
日期:2020.1.7
this article a cascade reaction strategy for the synthesis of complex N-heterocyclic compounds with contiguous and tetrasubstituted stereogenic carbons. Under the sequential catalysis of a chiral binol-Ti complex and BF3 , cyclopentanone-derived tertiary enamides undergo an enantioselective enamine addition to ketone carbonyls followed by diastereoselective trapping of the resulting acyliminiums by electron-rich