Croatica Chemica Acta, Vol. 87 No. 4, 2014.
Izvorni znanstveni članak
https://doi.org/10.5562/cca2490
Towards the Strongest Neutral Organic Superbases Based on Intramolecular H-bonds
Danijela Barić
; Quantum Organic Chemistry Group, Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
Borislav Kovačević
; Quantum Organic Chemistry Group, Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
Sažetak
Utilizing several different trialkylarsine oxides and substituted pyridine N-oxides as a hydrogen bond acceptors in tri-substituted guanidines we designed several very basic superbases possessing intramo-lecular hydrogen bonds (IHB-superbases), with proton affinity in the gas phase that comes very close to that of paradigmatic P4-tBu Schwesinger superbase and with pKa in acetonitrile up to 36
units.
Ključne riječi
organic superbases; intramolecular hydrogen bonds; DFT calculations
Hrčak ID:
131547
URI
Datum izdavanja:
22.12.2014.
Posjeta: 2.353 *