Some reactions of electrochemically prepared anions of DMF and DMSO

Facile Electron Uptake by Carotenoids Under Mild, Non‐Radiative Conditions: Formation of Carotenoid Anions

“…[29][30][31][32] The reaction mechanism for electron transfer from DMF -to unsaturated compounds is probably not less ambiguous. [20] Whatever reservations can be forwarded on the electron-transfer mechanism from DMSO -and DMF -, Car (1) undeniably takes up electrons and is reduced to give the blue dianion Car 2-(3) (Scheme 1). Secondary products.…”

“…The methylsulfinylmethide (dimsyl) anion H 3 CS(=O)CH 2 -(DMSO -), prepared from DMSO with alkali (sBuOK, KOH), [19] is not only a powerful base and nucleophile but also a reducing agent. [20,21] Similarly, but far less mentioned, the DMF anion HC(=O)NCH 3 CH 2 animal and plant cells exert their effects by consecutive single electron transfer. [25,26] It is, therefore, quite astonishing that the many ketocarotenoids and carotenoid aldehydes remained unnoticed in analogous electron transfer studies.…”

Cu(II)-Catalyzed C-N Coupling of (Hetero)aryl Halides and N-Nucleophiles Promoted by α-Benzoin Oxime

“…1-(2-Methoxyphenyl)piperidine ( 4h ) [49]: colorless oil (0.44 g, 82%). 1 H-NMR (400 MHz, CDCl 3 ) δ (ppm): 6.99–6.84 (4H, m), 3.86 (3H, s), 2.99–2.97 (4H, m), 1.78–1.54 (6H, m).…”

Phenyl(2,4,5-triphenylcyclopenta-1,4-dien-1-yl)methanone

“…Data collection: CrystalClear (Rigaku, 2010); cell refinement: CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL. The previously know title compound (Lund, 2005) has been prepared by the reaction of Woollins′ reagent with quinoxaline-2,3-dithiol. In a similar manner to the two somewhat related structures (Evrard et al, 1971 andWender et al, 2006)…”

“…For a previous preparation of the title compound, see: Lund (2005). The crystal studied was obtained by reaction of Woollins' reagent [2,4-bis(phenyl)-1,3-diselenadiphosphetane-2,4-diselenide] with quinoxaline-2,3-dithiol.…”