42882-50-8Relevant articles and documents
α-Acylaminophosphonates possessing epoxyisoindolone moiety
Kachkovskyi, Georgiy O.,Kolodiazhnyi, Oleg I.
, p. 12576 - 12582 (2007)
α-Acylaminophosphonates possessing an epoxyisoindolone moiety were prepared with good stereoselectivity (de≥80%) by?a tandem acylation/[4+2]-cycloaddition reaction between maleic anhydride and α-aminophosphonates derived from a furfurylamine. The cycloaddition products have an opposite orientation of epoxy and phosphonate groups, which was confirmed by NMR spectroscopy and X-ray crystal structure analysis.
Sulfated polyborate: A dual catalyst for the reductive amination of aldehydes and ketones by NaBH4
Ganwir, Prerna,Chaturbhuj, Ganesh
supporting information, (2021/05/19)
An efficient, quick, and environment-friendly one-pot reductive amination of aldehydes or ketones was developed. In ethanol at 70 °C, a imination catalyzed by sulfated polyborate and further reduced by sodium borohydride yields various amines. The present method has many significant benefits, including a shorter reaction time, excellent yields, and a hassle-free, straightforward experimental process. The reaction has a wide range of applications due to its flexibility, including secondary amine for reductive amination.
Ligand-Controlled Inversion of Diastereo- and Enantioselectivity in Silver-Catalyzed Azomethine Ylide-Imine Cycloaddition of Glycine Aldimino Esters with Imines
Yu, Bo,Yang, Ke-Fang,Bai, Xing-Feng,Cao, Jian,Zheng, Zhan-Jiang,Cui, Yu-Ming,Xu, Zheng,Li, Li,Xu, Li-Wen
supporting information, p. 2551 - 2554 (2018/05/17)
A highly diastereo- and enantioselective silver-catalyzed azomethine ylide-imine (AYI) cycloaddition reaction of glycine aldimino esters with imines was developed in which the Xing-Phos-controlled syn-selective or DTBM-Segphos-induced anti-selective AYI cycloaddition reaction could be applied to the synthesis of a variety of stereodivergent 1-alkyl-2,5-substituted imidazolidines with high yields and excellent enantioselectivities (up to 99% ee) as well as good diastereoselectivities (up to 99:1 dr) under mild reaction conditions.