Sc(OTf)3-catalyzed condensation of 2-alkyl-N-tosylaziridine with aldehydes or ketones: an efficient synthesis of 5-alkyl-1,3-oxazolidines
作者:Byungman Kang、Aaron W. Miller、Sandra Goyal、SonBinh T. Nguyen
DOI:10.1039/b902647a
日期:——
Sc(OTf)(3) effectively catalyzes the condensation of 2-alkyl-N-tosylaziridine with a wide variety of aldehydes and ketones, producing 5-alkyl-1,3-oxazolidines in good yields and excellent regioselectivity at catalyst loadings as low as 1 mol%.
A one-pot conversion of an aziridine to a β-lactam using nickel tetracarbonyl
作者:Wilaiporn Chamchaang、Allan R. Pinhas
DOI:10.1039/c39880000710
日期:——
A one-pot, inert atmosphere conversion of an aziridine to a β-lactam has been achieved, usingnickeltetracarbonyl, in which the less substituted C–N bond is carbonylated.
使用四羰基镍将一氮丙啶一锅法在惰性气氛下转化为β-内酰胺,其中取代度较低的C–N键被羰基化。
Ni/Photoredox-Catalyzed C(sp<sup>3</sup>)–C(sp<sup>3</sup>) Coupling between Aziridines and Acetals as Alcohol-Derived Alkyl Radical Precursors
作者:Sun Dongbang、Abigail G. Doyle
DOI:10.1021/jacs.2c09294
日期:2022.11.2
available C(sp3) precursors that afford valuable β-functionalized amines upon ring opening. In this article, we report a Ni/photoredox methodology for C(sp3)–C(sp3) cross-coupling between aziridines and methyl/1°/2° aliphatic alcohols activated as benzaldehyde dialkyl acetals. Orthogonal activation modes of each alkyl coupling partner facilitate cross-selectivity in the C(sp3)–C(sp3) bond-forming reaction: