59571-38-9Relevant articles and documents
Asymmetric Transfer Hydrogenation of α-Keto Amides; Highly Enantioselective Formation of Malic Acid Diamides and α-Hydroxyamides
Gediya, Shweta K.,Vyas, Vijyesh K.,Clarkson, Guy J.,Wills, Martin
supporting information, p. 7803 - 7807 (2021/10/20)
The asymmetric transfer hydrogenation (ATH) of α-keto-1,4-diamides using a tethered Ru/TsDPEN catalyst was achieved in high ee. Studies on derivatives identified the structural elements which lead to the highest enantioselectivities in the products. The α-keto-amide reduction products have been converted to a range of synthetically valuable derivatives.
NOVEL ESTERAMIDE COMPOUNDS, METHODS FOR PREPARING SAME, AND USES THEREOF
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Paragraph 0258-0259, (2013/08/28)
An esteramide compound of the following formula (I): [in-line-formulae]R1OOC-A-CONR2R3??(I)[/in-line-formulae] is described, wherein: A is a covalent bond or a methylene group —CH2—;R1 is an optionally substituted, saturated or unsaturated aliphatic or cycloaliphatic hydrocarbon group including from 5 to 36 carbon atoms,R2 and R3, either identical or different, are groups selected from a hydrogen atom, and optionally substituted hydrocarbon groups, preferably including from 1 to 36 carbon atoms, andR2 and R3 not being simultaneously hydrogen atoms. Also described, are applications for using the esteramide compound, notably as a solvent.
Heterocyclic lithium amides as chiral ligands for an enantioselective hydroxyalkylation with n-BuLi
Duguet, Nicolas,Petit, Sylvain M.,Marchand, Philippe,Harrison-Marchand, Anne,Maddaluno, Jacques
, p. 5397 - 5409 (2008/12/21)
(Chemical Equation Presented) Chiral heterocyclic structures based on 3-aminopyrrolidines (3APs), 3-aminotetrahydrothiophens (3ATTs), and 3-aminotetrahydrofurans (3ATFs) have been synthesized. The corresponding lithium amides have been evaluated as chiral ligands in the condensation of n-BuLi on o-tolualdehyde. The returned levels of induction were in the 46-80% ee range. The cheap and easily prepared 3ATFLi's turned out to be also the best ligands, giving access to the expected R or S alcohols in a same 80% level of induction at -78°C in THF. In all cases, the sense of induction depends on the absolute configuration of C8 on the 3-amino appendage. A general concept is proposed to rationalize the process of induction in the presence of organolithium species.