On the structure of lithium 2-(1-pyrrolidyl)ethoxide with benzyllithium

Recycling primary lithium batteries using a coordination chemistry approach: recovery of lithium and manganese residues in the form of industrially important materials

“…S1, S2†). This is a common structural motif in lithium coordination chemistry and has been found in [Li 6 (OR) 6 ] (RO − = t -butyl 3-oxobutanoato, 65 diphenylmethanolato, 66 2-(isopropylamino)troponato, 67 2-methyl-1-phenylpropen-1-olato, 68 1,1-dicyclopropylethanolato, 69 (2 S )-1-methyl-2-(oxymethyl)pyrrolidine, 70 1,1-dimethylprop-2-yn-oxo, 71 bis((dimethylphosphino)methyl)methanolato), 72 2-methyl-1-(2-thienyl)propanolato, 73 dimethylbenzyloxo, 74 2-(pyrrolidin-1-yl)ethanolato, 75 methyl 3-aminobutanoato, 76 1- t -butylethenolato 77 ) or [Li 6 (OAr) 6 ] (ArO − = 2,6-dimethoxyphenolato, 78 2-(dimethylamino)phenolato, 79 2-methyl-8-quinolinolato 80 ).…”

Rhodium‐Catalyzed Benzylic Addition Reactions of Alkylarenes to Michael Acceptors

“…However, because of the small difference in electronegativity between carbon and hydrogen atoms, heterolytic fission of C−H bonds that are not activated by a strongly electron‐withdrawing group such as a carbonyl is difficult. Specifically, deprotonation of the benzylic C−H bonds of toluene, which takes place in the absence of chelation by an additional directing group, requires the use of stoichiometric or excess amounts of strong bases, [4,5] such as n BuLi/additive, [4a–c] mixed metal Li/K‐TMP amide (TMP, tetramethylpiperidide), [4d–f] n BuLi/ t BuOK, [4g–i,5e] LDA (lithium diisopropylamide), [4j] and MHMDS (metal hexamethyldisilazide) [4k,5a–d] (Scheme 1a). There are a few early examples of alkyl‐alkali‐metal‐catalyzed addition of simple aromatic hydrocarbons bearing a methyl group with ethylene or its derivatives [6] .…”

Alkaline and alkaline earth metals

“…103 The crystal structure of BeF 2 has been reported and the structural evolution of MgF 2 from an amorphous deposit has been investigated by in situ X-ray diffraction. 104,105 Information on the complexation of Be 2+ with cyclo-tri-m-imidotriphosphate anions has been gained by 9 Be and 31 P NMR techniques. 106 [Cl 2 Be(C{PPh 3 } 2 )] and a related hydrolysis product have been isolated.…”

“…8 Benzyllithium complexed with lithium 2-(1-pyrrolidyl)ethoxide has been investigated by X-ray crystallography. 9 An LDA-based arylation of heterocycle and arene carbon-hydrogen bonds by aryl chlorides and fluorides which proceeds via aryne intermediates has been developed. 10 Chiral lithium binaphtholate has been used to catalyse the enantioselective alkynylation of ketones using lithium acetylide.…”