Pregled bibliografske jedinice broj: 247352
Chemistry of 1, 3-Dioxepins. II. Dehydrohalogenation of 5, 6-Dihalogen-1, 3-Dioxepanes with Strong Bases
Chemistry of 1, 3-Dioxepins. II. Dehydrohalogenation of 5, 6-Dihalogen-1, 3-Dioxepanes with Strong Bases // Croatica Chemica Acta, 57 (1984), 281-288 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 247352 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Chemistry of 1, 3-Dioxepins. II. Dehydrohalogenation of 5, 6-Dihalogen-1, 3-Dioxepanes with Strong Bases
Autori
Proštenik, Mladen V. ; Dumić, Miljenko ; Butula, Ivan
Izvornik
Croatica Chemica Acta (0011-1643) 57
(1984);
281-288
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
1; 3-Dioxepins; Dehydrohalogenation; 5; 6-Dihalogen-1; 3-dioxepanes
Sažetak
Dehydrohalogenation of 5, 6-dihalogen-1, 3-dioxepanes II with KOH/MeOH or NaOCH3/MeOH under controlled reaction conditions gave mainly 5-halogen-4, 7-dihydro-1, 3-dioxepins III. Further substitution of viniylic-bromine in III with KO-t-Bu/tert-BuOH or KOH/MeOH led to corresponding 5-substituted-4, 7-dihydro-1, 3-dioxepins some of which underwent spontaneous isomerization to 6, 7-dihydro-1, 3-dioxepins. Substitution of viniylic appeared to follow and elimination-addition mechanism with initial formation of an intermediate with a triple bond.
Izvorni jezik
Engleski
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
