Pregled bibliografske jedinice broj: 779057
The Hetero-Diels-Alder Addition of Sulfur dioxide: The Pseudo-chair Conformation of a 4, 5-Dialkylsultine
The Hetero-Diels-Alder Addition of Sulfur dioxide: The Pseudo-chair Conformation of a 4, 5-Dialkylsultine // Chemistry - A European Journal, 9 (2003), 20; 4911-4915 doi:10.1002/chem.200304932 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 779057 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
The Hetero-Diels-Alder Addition of Sulfur dioxide: The Pseudo-chair Conformation of a 4, 5-Dialkylsultine
Autori
Marković, Dean ; Roversi, Elena ; Scoppelliti, Rosario ; Vogel, Pierre ; Meana, Ruben ; Sordo, Jose A.
Izvornik
Chemistry - A European Journal (0947-6539) 9
(2003), 20;
4911-4915
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Sultine ; conformation analysis
Sažetak
Even unsubstituted butadiene adds to sulfur dioxide in the hetero-Diels–Alder mode more rapidly than in the chelotropic mode. The sultine can be observed in equilibrium with the diene and the sulfur dioxide only at low temperature and in the presence of CF3COOH. Crystals of 4, 5-dialkyl-sultine resulting from the SO2 addition to 1, 2-dimethylidenecyclohexane have been obtained at −100 °C and analyzed by X-ray diffraction. Quantum chemical calculations have shown that hyperconjugative interactions within the sulfinyl moiety are responsible for the anomeric effects observed in sultines that prefer pseudo-chair conformations with pseudo-axial S[DOUBLE BOND]O bonds.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
- MEDLINE
