2687-97-0Relevant articles and documents
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Avetisjan et al.
, (1968)
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Synthesis of 1,2-Aminoalcohols through Enantioselective Aminoallylation of Ketones by Cu-Catalyzed Reductive Coupling
Klake, Raphael K.,Edwards, Mytia D.,Sieber, Joshua D.
, p. 6444 - 6449 (2021)
Herein, we report the development of a catalytic enantioselective addition of N-substituted allyl equivalents to ketone electrophiles through use of Cu-catalyzed reductive coupling to access important chiral 1,2-aminoalcohol synthons in high levels of regio-, diastereo-, and enantioselectivity. Factors affecting enantioinduction are discussed including the identification of a reversible ketone allylation step that has not been previously reported in Cu-catalyzed reductive coupling.
Novel Pyrrolinium-based Ionic Liquids for Lithium Ion Batteries: Effect of the Cation on Physicochemical and Electrochemical Properties
Kim, Hyung-Tae,Kwon, Oh Min,Mun, Junyoung,Oh, Seung M.,Yim, Taeeun,Kim, Young Gyu
, p. 267 - 276 (2017)
Lithium ion batteries (LIBs) are one of the most promising energy conversion/storage systems, but the low thermal stability of the current electrolytes in LIBs should be improved to expand their potential applications. To enhance the safety properties of LIBs, novel pyrrolinium-based ionic liquids (ILs) were proposed as an alternative electrolyte to the current carbonate electrolyte, which have some task-specific functional groups, i.e., a planar C[dbnd]N double bond, a C-O ether linkage, and no unstable C-H bond, designed to improve their electrochemical performances as well as the physicochemical properties. As a result, the pyrrolinium-based ILs exhibited much improved physicochemical and electrochemical properties compared to those of the known ILs. Among the prepared ILs, N-allyl-2-methoxypyrrolinium bis(fluorosulfonyl)imide (A(OMe)Pyrl-FSI, 4) showed the high ionic conductivity (10.2 mS cm?1), the very good cycling performance (99.3% of retention ratio after 50 cycles) with a LiFePO4 electrode, and the much improved lithium ion transference number (0.19). IL 4 also had the remarkable rate capability at 5 C-rate with the retention ratio of 81.2% (124.8 mA h g?1), compared to the initial discharge capacity of 153.7 mA h g?1 at 0.1 C-rate. In addition, both their high thermal stability and non-flammability were also confirmed.
Thermally induced substrate release via intramolecular cyclizations of Amino esters and Amino carbonates
Knipp, Ralph J.,Estrada, Rosendo,Sethu, Palaniappan,Nantz, Michael H.
supporting information, p. 3422 - 3429 (2014/05/06)
The relative cleavage of an alcohol from a panel of amino esters and amino carbonates via intramolecular cyclization was examined as a mechanism for substrate release. Thermal stability at 37 °C was observed only for the seven-membered ring progenitors. Applicability of the approach was illustrated by δ-lactam formation within a poly(dimethylsiloxane) microchannel for release of a captured fluorescent probe.