Pregled bibliografske jedinice broj: 75939
In Search for Neutral Organic Superbases - Iminopolyenes and Their Amino Derivatives
In Search for Neutral Organic Superbases - Iminopolyenes and Their Amino Derivatives // New Journal of Chemistry, 26 (2002), 1324-1328 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 75939 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
In Search for Neutral Organic Superbases - Iminopolyenes and Their Amino Derivatives
Autori
Vianello, Robert ; Kovačević, Borislav ; Maksić, Zvonimir B.
Izvornik
New Journal of Chemistry (1144-0546) 26
(2002);
1324-1328
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
-
Sažetak
The intrinsic proton affinities of iminopolyenes and their amino derivatives are considered. It is shown that substitution of amino groups at strategic positions increases proton affinity to superbasic values particularly in branched polyenes. It follows that the number of double bonds, selection of the conformations and a judicious choice of substituents offer a closely spaced ladder of highly basic compounds spanning the range of values of PAs between 206.5 and 271.9 kcal/mol, which might be of some importance in acidbase chemistry. This conclusion is strengthened by the fact that several of the studied amino derivatives of iminopolyenes exhibit very high pKa values between 30.0 33.5 in acetonitrile. Hence, they qualify as candidates for powerful neutral organic superbases.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
